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MITSUBISHI LSIs MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM DESCRIPTION This is a family of 262144-word by 16-bit dynamic RAMs with EDO mode fuction, fabricated with the high performance CMOS process, and is ideal for the buffer memory systems of personal computer graphics and HDD where high speed, low power dissipation, and low costs are essential. The use of double-layer metalization process technology and a single-transistor dynamic storage stacked capacitor cell provide high circuit density at reduced costs. The lower supply (3.3V) operation, due to the optimization of transistor structure, provides low power dissipation while maintaining high speed operation. Multiplexed address inputs permit both a reduction in pins and an increase in system densities. Self or extended refresh current is low enough for battery back-up application. This device has 2CAS and 1W terminals with a refresh cycle of 512 cycles every 8.2ms. PIN CONFIGURATION (TOP VIEW) (3.3V)VCC DQ1 DQ2 DQ3 DQ4 (3.3V)VCC DQ5 DQ6 DQ7 1 2 3 4 5 6 7 8 9 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VSS(0V) DQ16 DQ15 DQ14 DQ13 VSS(0V) DQ12 DQ11 DQ10 DQ9 NC LCAS UCAS OE A8 A7 A6 A5 A4 VSS(0V) DQ8 10 FEATURES Type name M5M4V4265CXX-5,-5S M5M4V4265CXX-6,-6S M5M4V4265CXX-7,-7S RAS CAS Address access access access time time time (max.ns) (max.ns) (max.ns) Power OE Cycle dissipaaccess time tion time (max.ns) (min.ns) (typ.mW) NC 11 NC 12 W 13 RAS 14 NC 15 A0 16 A1 17 A2 18 A3 19 (3.3V)VCC 20 50 60 70 13 15 20 25 30 35 13 15 20 90 110 130 408 363 333 XX=TP,J Standard 40 pin SOJ, 44 pin TSOP (II) Single 3.30.3V supply Low stand-by power dissipation CMOS Input level 1.8mW (Max) CMOS Input level 360W (Max) * Operating power dissipation M5M4V4265CXX-5,-5S 486mW (Max) M5M4V4265CXX-6,-6S 432mW (Max) M5M4V4265CXX-7,-7S 396mW (Max) Self refresh capability * Self refresh current 100A (Max) Extended refresh capability Extended refresh current 100A (Max) EDO mode (512-column random access), Read-modify-write, RASonly refresh, CAS before RAS refresh, Hidden refresh capabilities. Early-write mode, OE and W to control output buffer impedance 512 refresh cycles every 8.2ms (A0~A8) 512 refresh cycles every 128ms (A0~A8) * Byte or word control for Read/Write operation (2CAS, 1W type) * : Applicable to self refresh version (M5M4V4265CJ,TP-5S,-6S, -7S : option) only Outline 40P0K (400mil SOJ) (3.3V)VCC DQ1 DQ2 DQ3 DQ4 (3.3V)VCC DQ5 DQ6 DQ7 1 2 3 4 5 6 7 8 9 44 43 42 41 40 39 38 37 36 35 VSS(0V) DQ16 DQ15 DQ14 DQ13 VSS(0V) DQ12 DQ11 DQ10 DQ9 DQ8 10 APPLICATION Microcomputer memory, Refresh memory for CRT, Frame buffer memory for CRT NC 13 NC 14 32 31 30 29 28 27 26 25 24 23 NC LCAS UCAS OE A8 A7 A6 A5 A4 VSS(0V) PIN DESCRIPTION Pin name A0~A8 DQ1~DQ16 RAS LCAS UCAS W OE VCC VSS 1 Function Address inputs Data inputs / outputs Row address strobe input Lower byte control column address strobe input Upper byte control column address strobe input Write control input Output enable input Power supply (+3.3V) Ground (0V) W 15 RAS 16 NC 17 A0 18 A1 19 A2 20 A3 21 (3.3V)VCC 22 Outline 44P3W-R (400mil TSOP Nomal Bend) NC : NO CONNECTION M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM FUNCTION In addition to EDO Mode, normal read, write and read-modifywrite operations the M5M4V4265CXX provides a number of other functions, e.g., RAS-only refresh, and delayed-write. The input conditions for each are shown in Table 1. Table 1 Input conditions for each mode Operation Lower byte read Upper byte read Word read Lower byte write Upper byte write Word write RAS only refresh Hidden refresh CAS before RAS (Extended *) refresh Inputs RAS ACT ACT ACT ACT ACT ACT ACT ACT ACT ACT NAC LCAS ACT NAC ACT ACT NAC ACT NAC ACT ACT ACT DNC UCAS NAC ACT ACT NAC ACT ACT NAC ACT ACT ACT DNC W NAC NAC NAC ACT ACT ACT DNC NAC DNC DNC DNC OE ACT ACT ACT NAC NAC NAC DNC ACT DNC DNC DNC DQ1~DQ8 DOUT OPN DOUT DIN DNC DIN OPN DOUT OPN OPN OPN Input/Output DQ9~DQ16 OPN DOUT DOUT DNC DIN DIN OPN DOUT OPN OPN OPN Self refresh * Stand-by Note : ACT : active, NAC : nonactive, DNC : don' t care, OPN : open BLOCK DIAGRAM ROW ADDRESS STROBE INPUT RAS LOWER BYTE CONTROL COLUMN ADDRESS LCAS STROBE INPUT UPPER BYTE CONTROL UCAS COLUMN ADDRESS STROBE INPUT WRITE CONTROL INPUT VCC (3.3V) CLOCK GENERATOR CIRCUIT LOWER UPPER (8)LOWER DATA IN BUFFER VSS (0V) DQ1 DQ2 DQ8 W (8)LOWER DATA OUT BUFFER LOWER DATA INPUTS / OUTPUTS VCC (3.3V) VSS (0V) A0~A8 COLUMN DECODER A0 A1 A2 A3 A4 A5 A6 A7 A8 (8)UPPER DATA IN BUFFER SENSE REFRESH AMPLIFIER & I /O CONTROL DQ9 DQ10 DQ16 ADDRESS INPUTS ROW & COLUMN ADDRESS BUFFER UPPER DATA INPUTS / OUTPUTS ROW A0~ A8 DECODER MEMORY CELL (4,194,304 BITS) (8)UPPER DATA OUT BUFFER VCC (3.3V) VSS (0V) OE OUTPUT ENABLE INPUT 2 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IO Pd Topr Tstg Parameter Supply voltage Input voltage Output voltage Output current Power dissipation Operating temperature Storage temperature Conditions With respect to VSS Ratings -0.5~4.6 -0.5~4.6 -0.5~4.6 50 1000 0~70 -65~150 Unit V V V mA mW C C Ta=25C RECOMMENDED OPERATING CONDITIONS (Ta=0~70C, unless otherwise noted) Symbol VCC VSS VIH VIL Parameter Supply voltage Supply voltage High-level input voltage, all inputs Low-level input voltage, all inputs Min 3.0 0 2.0 -0.3 Limits Nom 3.3 0 Max 3.6 0 VCC+0.3 (Note 1) Unit V V V V 0.8 Note 1 : All voltage values are with respect to VSS. ELECTRICAL CHARACTERISTICS (Ta=0~70C, VCC=3.30.3V, VSS=0V, unless otherwise noted) (Note 2) Symbol VOH VOL IOZ II ICC1(AV) Parameter High-level output voltage Low-level output voltage Off-state output current Input current Average supply current from Vcc, operating (Note 3,4,5) M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Test conditions IOH=-2mA IOL=2mA Q floating 0VVOUTVCC 0VVINVCC+0.3V, Other inputs pins=0V Min 2.4 0 -5 -5 Limits Typ RAS, CAS cycling tRC=tWC=min. output open RAS= CAS =VIH, output open Max VCC 0.4 5 5 135 120 110 2 0.5 0.1 * 125 110 95 125 110 95 115 100 85 Unit V V A A mA ICC2 Supply current from VCC, stand-by (Note 6) RAS= CASVCC -0.2V output open RAS cycling, CAS=VIH tRC=min. output open RAS=VIL, CAS cycling tPC=min. output open CAS before RAS refresh cycling tRC=min. output open RAS cycling CAS0.2V or CAS before RAS refresh cycling RAS0.2V or VCC-0.2V CAS0.2V or VCC-0.2V W0.2V orVCC-0.2V OE0.2V or VCC-0.2V A0~A8 0.2V or VCC-0.2V, DQ=open tRC=250s, tRAS=tRAS min~1s RAS=CAS0.2V output open mA ICC3(AV) Average supply current M5M4V4265C-6,-6S from Vcc, RAS only refresh mode (Note 3,5) M5M4V4265C-7,-7S Average supply current from Vcc EDO mode (Note 3,4,5) Average supply current from Vcc CAS before RAS refresh mode (Note 3,5) M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S M5M4V4265C-5,-5S mA ICC4(AV) mA ICC6(AV) mA ICC8(AV) * Average supply current from VCC Extended-refresh mode 100 A (Note 6) ICC9(AV) * Average supply current from VCC Self-refresh mode (Note 6) 100 A Note 2 : Current flowing into an IC is positive, out is negative. 3 : ICC1(AV), ICC3(AV), ICC4(AV), and ICC6 (AV) are dependent on cycle rate. Maximum current is measured at the fastest cycle rate. 4 : ICC1(AV) and ICC4(AV) are dependent on output loading. Specified values are obtained with the output open. 5 : Column Address can be changed once or less while RAS=VIL and CAS=VIH. 3 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM CAPACITANCE (Ta=0~70C, VCC=3.30.3V, VSS=0V, unless otherwise noted) Symbol CI (A) CI (CLK) CI / O Parameter Input capacitance, address inputs Input capacitance, clock inputs Input/Output capacitance, data ports Test conditions VI=VSS f=1MHz VI=25mVrms Min Limits Typ Max 5 7 7 Unit pF pF pF SWITCHING CHARACTERISTICS (Ta=0~70C, VCC=3.30.3V, Vss=0V, unless otherwise noted, see notes 6,14,15) Limits Symbol tCAC tRAC tAA tCPA tOEA tOHC tOHR tCLZ tOEZ tWEZ tOFF tREZ Parameter Access time from CAS Access time from RAS Columu address access time Access time from CAS precharge Access time from OE Output hold time from CAS Output hold time from RAS Output low impedance time from CAS low Output disable time after OE high Output disable time after WE high Output disable time after CAS high Output disable time after RAS high (Note 7,8) (Note 7,9) (Note 7,10) (Note 7,11) (Note 7) (Note 13) (Note 13) (Note 7) (Note 12) (Note 12) (Note 12,13) (Note 12,13) M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Unit ns ns ns ns ns ns ns ns ns ns ns ns Min Max 13 50 25 28 13 Min Max 15 60 30 33 15 Min Max 20 70 35 38 20 5 5 5 13 13 13 13 5 5 5 15 15 15 15 5 5 5 20 20 20 20 Note 6 : An initial pause of 500s is required after power-up followed by a minimum of eight initialization cycles (RAS-only refresh or CAS before RAS refresh cycles). Note the RAS may be cycled during the initial pause. And 8 initialization cycles are required after prolonged periods (greater than 8.2ms) of RAS inactivity before proper device operation is achieved. 7 : Measured with a load circuit equivalent to 50pF, VOH (IOH=-2mA) and VOL(IOL=2mA). The reference levels for measuring of output signals are 2.0V(VOH) and 0.8V(VOL). 8 : Assumes that tRCDtRCD(max) and tASCtASC(max) and tCPtCP(max). 9 : Assumes that tRCDtRCD(max) and tRADtRAD(max). If tRCD or tRAD is greater than the maximum recommended value shown in this table, tRAC will increase by amount that tRCD exceeds the value shown. 10 : Assumes that tRADtRAD(max) and tASCtASC(max). 11 : Assumes that tCPtCP(max) and tASCtASC(max). 12 : tOEZ (max), tWEZ(max), tOFF(max) and tREZ(max) defines the time at which the output achieves the high impedance state (IOUT 5A ) and is not reference to VOH(min) or VOL(max). 13 : Output is disabled after both RAS and CAS go to high. 4 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM TIMING REQUIREMENTS (For Read, Write, Read-Modify-Write, Refresh and EDO Mode Cycles) (Ta=0~70C, VCC=3.30.3V, VSS=0V, unless otherwise noted, see notes 14,15) Limits Symbol tREF tREF tRP tRCD tCRP tRPC tCPN tRAD tASR tASC tRAH tCAH tDZC tDZO tRDD tCDD tODD tT Parameter M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Unit ms ms ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Min Refresh cycle time Refresh cycle time * RAS high pulse width Delay time, RAS low to CAS low Delay time, CAS high to RAS low Delay time, RAS high to CAS low CAS high pulse width Column address delay time from RAS low Row address setup time before RAS low Column address setup time before CAS low Row address hold time after RAS low Column address hold time after CAS low Delay time, data to CAS low Delay time, data to OE low Delay time, RAS high to data Delay time, CAS high to data Delay time, OE high to data Transition time Note 14 : The timing requirements are assumed tT=2ns. Max 8.2 128 32 Min Max 8.2 128 45 Min Max 8.2 128 50 (Note 16) (Note 17) (Note 18) (Note 19) (Note 19) (Note 20) (Note 20) (Note 20) (Note 21) 30 18 5 0 8 13 0 0 8 8 0 0 13 13 13 1 25 10 50 40 20 5 0 10 15 0 0 10 10 0 0 15 15 15 1 30 13 50 50 20 5 0 10 15 0 0 10 10 0 0 20 20 20 1 35 13 50 Note 15 : VIH(min) and VIL(max) are reference levels for measuring timing of input signals. Note 16 : tRCD(max) is specified as a reference point only. If tRCD is less than tRCD(max), access time is tRAC. If tRCD is greater than tRCD(max), access time is controlled exclusively by tCAC or tAA. Note 17 : tRAD(max) is specified as a reference point only. If tRADtRAD(max) and tASCtASC(max), access time is controlled exclusively by tAA. Note 18 : tASC(max) is specified as a reference point only. If tRCDtRCD(max) and tASCtASC(max), access time is controlled exclusively by tCAC. Note 19 : Either tDZC or tDZO must be satisfied. Note 20 : Either tRDD or tCDD or tODD must be satisfied. Note 21 : tT is measured between VIH(min) and VIL(max). Read and Refresh Cycles Limits Symbol tRC tRAS tCAS tCSH tRSH tRCS tRCH tRRH tRAL tCAL tORH tOCH Read cycle time Parameter M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Unit ns ns ns ns ns ns ns ns ns ns ns ns RAS low pulse width CAS low pulse width CAS hold time after RAS low RAS hold time after CAS low Read setup time before CAS low Read hold time after CAS high Read hold time after RAS high Column address to RAS hold time Column address to CAS hold time RAS hold time after OE low CAS hold time after OE low Note 22 : Either tRCH or tRRH must be satisfied for a read cycle. (Note 22) (Note 22) Min 90 50 8 40 13 0 0 0 25 13 13 13 Max 10000 10000 Min 110 60 10 48 15 0 0 0 30 18 15 15 Max 10000 10000 Min 130 70 13 55 20 0 0 0 35 23 20 20 Max 10000 10000 5 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Write Cycle (Early Write and Delayed Write) Limits Symbol tWC tRAS tCAS tCSH tRSH tWCS tWCH tCWL tRWL tWP tDS tDH Parameter Write cycle time RAS low pulse width CAS low pulse width CAS hold time after RAS low RAS hold time after CAS low Write setup time before CAS low Write hold time after CAS low CAS hold time after W low RAS hold time after W low Write pulse width Data setup time before CAS low or W low Data hold time after CAS low or W low M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Unit ns ns ns ns ns ns ns ns ns ns ns ns (Note 24) Min 90 50 8 40 13 0 8 8 8 8 0 8 Max 10000 10000 Min 110 60 10 48 15 0 10 10 10 10 0 10 Max 10000 10000 Min 130 70 10 55 20 0 13 13 13 13 0 13 Max 10000 10000 Read-Write and Read-Modify-Write Cycles Limits Symbol tRWC tRAS Parameter Read write/read modify write cycle time M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Unit ns (Note 23) ns 10000 10000 10000 RAS low pulse width ns tCAS 10000 10000 10000 CAS low pulse width ns tCSH CAS hold time after RAS low tRSH ns RAS hold time after CAS low ns tRCS Read setup time before CAS low ns tCWD (Note 24) Delay time, CAS low to W low tRWD ns (Note 24) Delay time, RAS low to W low tAWD ns (Note 24) Delay time, address to W low tOEH ns OE hold time after W low Note 23 : tRWC is specified as tRWC(min)=tRAC(max)+tODD(min)+tRWL(min)+tRP(min)+4tT. Note 24 : tWCS, tCWD, tRWD and tAWD and tCPWD are specified as reference points only. If tWCStWCS(min) the cycle is an early write cycle and the DQ pins will remain high impedance throughout the entire cycle. If tCWDtCWD(min), tRWDtRWD(min), tAWDtAWD(min) and tCPWDtCPWD(min) (for EDO mode cycle only), the cycle is a read-modify-write cycle and the DQ will contain the data read from the selected address. If neither of the above condition (delayed write) of the DQ (at access time and until CAS or OE goes back to VIH) is indeterminate. Min 109 75 38 70 38 0 28 65 40 13 Max Min 133 89 44 82 44 0 32 77 47 15 Max Min 161 107 57 99 57 0 42 92 57 20 Max 6 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Cycle (Read, Early Write, Read-Write, Read-Modify-Write Cycle, Read Write Mix Cycle, Hi-Z control by OE or W) Limits Symbol tHPC tHPRWC tDOH tRAS tCP tCPRH tCPWD tCHOL tOEPE tWPE tHCWD tHAWD tHPWD tHCOD tHAOD tHPOD Parameter (Note 26) Hyper page mode read/write cycle time Hyper page mode read write/read modify write cycle time Output hold time from CAS low (Note 27) RAS low pulse width for read or write cycle (Note 28) CAS high pulse width RAS hold time after CAS precharge (Note 24) Delay time, CAS precharge to W low Hold time to maintain the data Hi-Z until CAS access OE pulse width (Hi-Z control) W pulse width (Hi-Z control) Delay time, CAS low to W low after read Delay time, Address to W low after read Delay time, CAS precharge to W low after read Delay time, CAS low to OE high after read Delay time, Address to OE high after read Delay time, CAS precharge to OE high after read M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S (Note 25) Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Min 20 57 5 65 8 28 43 7 7 7 28 40 43 13 25 28 Max 100000 13 Min 25 66 5 77 10 33 50 7 7 7 32 47 50 15 30 33 Max 100000 16 Min 30 79 5 92 10 38 60 7 7 7 42 57 60 20 35 38 Max 100000 16 Note 25 : All previously specified timing requirements and switching characteristics are applicable to their respective EDO mode cycle. Note 26 : tHPC(min) is specified in the case of read-only and early write-only in EDO mode. Note 27 : tRAS(min) is specified as two cycles of CAS input are performed. Note 28 : tCP(max) is specified as a reference point only. CAS before RAS Refresh Cycle Symbol tCSR tCHR tCAS (Note 29) Limits Parameter CAS setup time before RAS low CAS hold time after RAS low CAS low pulse width M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Unit ns ns ns Min 5 10 17 Max Min 5 10 17 Max Min 5 15 22 Max Note 29 : Eight or more CAS before RAS cycles instead of eight RAS cycles are necessary for proper operation of CAS before RAS refresh mode. Self Refresh Cycle * Symbol tRASS tRPS tCHS (Note 30) Limits Parameter CBR self refresh RAS low pulse width CBR self refresh RAS high precharge time CBR self refresh CAS hold time M5M4V4265C-5,-5S M5M4V4265C-6,-6S M5M4V4265C-7,-7S Unit s ns ns Min 100 90 -50 Max Min 100 110 -50 Max Min 100 130 -50 Max 7 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Timing Diagrams Read Cycle (Note 31) tRC tRAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tRAD tASR VIH VIL tRAH tASC tCAH tRAL tCAL tASR ROW ADDRESS tRP RAS tRPC tRCD tRSH tCAS tCRP A0~A8 ROW ADDRESS COLUMN ADDRESS tRCS VIH VIL tDZC tRRH tRCH W tCDD DQ1~DQ16 (INPUTS) VIH VIL tCAC tAA tCLZ DQ1~DQ16 (OUTPUTS) VOL VOH Hi-Z Hi-Z tREZ tOHR tWEZ tOFF tOHC Hi-Z tOEA tRAC tDZO tOEA tOCH DATA VALID tOEZ tODD OE VIH VIL tORH Note 31 Indicates the don't care input. VIH(min)VINVIH(max) or VIL(min)VINVIL(max) Indicates the invalid output. 8 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Byte Read Cycle tRC tRAS VIH VIL tCSH tCRP VIH VIL tCAS UCAS (or LCAS) VIH VIL tRAD tASR VIH VIL tRAH tASC tCAH tRAL tCAL tASR ROW ADDRESS tRP RAS tRPC tRCD tRSH tCRP LCAS (or UCAS) tCPN A0~A8 ROW ADDRESS COLUMN ADDRESS tRRH tRCS VIH VIL tRCH W DQ1~DQ8 VIH (or DQ9~DQ16) VIL (INPUTS) DQ1~DQ8 VOH (or DQ9~DQ16) (OUTPUTS) VOL tDZC DQ9~DQ16 VIH (or DQ1~DQ8) VIL (INPUTS) Hi-Z tCDD Hi-Z tCAC tAA tCLZ DQ9~DQ16 VOH (or DQ1~DQ8) (OUTPUTS) VOL Hi-Z tREZ tOHR tOFF tOHC Hi-Z DATA VALID tWEZ tRAC tDZO VIH VIL tORH tOEA tOCH OE tOEZ tODD 9 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Early Write Cycle tWC tRAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tASR VIH VIL tRAH tASC tCAH tASR tRCD tRSH tCAS tCRP tRPC tRP RAS A0~A8 ROW ADDRESS COLUMN ADDRESS ROW ADDRESS tWCS VIH VIL tDS tWCH W tDH DQ1~DQ16 (INPUTS) VIH VIL DATA VALID DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z OE VIH VIL 10 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Byte Early Write Cycle tWC tRAS VIH VIL tCRP VIH VIL tCAS UCAS (or LCAS) VIH VIL tASR VIH VIL tRAH tASC tCAH COLUMN ADDRESS tRP RAS tCSH tRCD tRSH tRPC tCRP LCAS (or UCAS) tASR A0~A8 ROW ADDRESS ROW ADDRESS tWCS W VIH VIL tWCH DQ1~DQ8 VIH (or DQ9~DQ16) VIL (INPUTS) DQ1~DQ8 VOH (or DQ9~DQ16) (OUTPUTS) VOL tDS DQ9~DQ16 VIH (or DQ1~DQ8) VIL (INPUTS) Hi-Z tDH DATA VALID DQ9~DQ16 VOH (or DQ1~DQ8) (OUTPUTS) VOL Hi-Z OE VIH VIL 11 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Delayed Write Cycle tWC tRAS VIH VIL tCRP VIH LCAS/UCAS VIL tASR tRAH tASC tCAH tASR COLUMN ADDRESS ROW ADDRESS tRP RAS tCSH tRCD tRSH tCAS tRPC tCRP A0~A8 VIH VIL ROW ADDRESS tRCS VIH VIL tWCH tDZC DQ1~DQ16 (INPUTS) VIH VIL tCLZ Hi-Z tCWL tRWL tWP W tDS tDH DATA VALID DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z Hi-Z tDZO VIH VIL tOEH tOEZ tODD OE 12 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Byte Delayed Write Cycle tWC tRAS RAS VIH VIL tCSH tCRP VIH VIL tCAS UCAS (or LCAS) VIH VIL tASR VIH VIL tRAH tASC tCAH tASR COLUMN ADDRESS ROW ADDRESS tRP tRPC tRSH tCRP tRCD LCAS (or UCAS) A0~A8 ROW ADDRESS tRCS VIH VIL tCWL tRWL tWP W DQ1~DQ8 VIH (or DQ9~DQ16) VIL (INPUTS) DQ1~DQ8 VOH (or DQ9~DQ16) (OUTPUTS) VOL tDZC DQ9~DQ16 VIH (or DQ1~DQ8) (INPUTS) VIL Hi-Z tWCH tDS Hi-Z tDH DATA VALID tCLZ DQ9~DQ16 VOH (or DQ1~DQ8) (OUTPUTS) VOL Hi-Z Hi-Z tDZO VIH VIL tOEZ tODD tOEH OE 13 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Read-Write, Read-Modify-Write Cycle tRWC tRAS VIH VIL tCRP VIH LCAS/UCAS VIL tASR tRAH tRAD tASC tCAH tASR tCSH tRCD tRSH tCAS tRPC tCRP tRP RAS A0~A8 VIH VIL ROW ADDRESS COLUMN ADDRESS ROW ADDRESS tRCS VIH VIL tDZC DQ1~DQ16 (INPUTS) VIH VIL Hi-Z tAWD tCWD tRWD tCWL tRWL tWP W tDS tDH DATA VALID tCAC tAA tCLZ DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z DATA VALID Hi-Z tRAC tDZO VIH VIL tOEA tODD tOEZ tOEH OE 14 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Byte Read-Write, Read-Modify-Write Cycle tRWC tRAS VIH VIL tCSH tRCD tCRP LCAS (or UCAS) VIH VIL tCAS UCAS (or LCAS) VIH VIL tASR VIH VIL tRAH tRAD tASC tCAH tASR tRSH tCRP tRPC tRP RAS A0~A8 ROW ADDRESS COLUMN ADDRESS ROW ADDRESS tRCS VIH VIL tAWD tCWD tRWD tCWL tRWL tWP W DQ1~DQ8 VIH (or DQ9~DQ16) VIL (INPUTS) DQ1~DQ8 VOH (or DQ9~DQ16) (OUTPUTS) VOL Hi-Z tDZC DQ9~DQ16 VIH (or DQ1~DQ8) VIL (INPUTS) Hi-Z tDS tDH DATA VALID tCAC tAA tCLZ DQ9~DQ16 VOH (or DQ1~DQ8) (OUTPUTS) VOL Hi-Z DATA VALID Hi-Z tRAC tDZO tOEA tODD tOEZ tOEH OE VIH VIL 15 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Read Cycle tRAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tRAD tASR VIH VIL tRAH tASC tCAH tASC tCAH tASC tCPRH tCAH tRCD tCAS tCP tHPC tCAS tCP tRSH tCAS tRP RAS tASR A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 COLUMN-3 ROW ADDRESS tRCS tCAL VIH VIL tCAL tRAL tCAL tRRH tRCH W tWEZ tDZC tRDD tCDD Hi-Z DQ1~DQ16 (INPUTS) VIH VIL tCAC tAA tCLZ tCAC tAA tDOH DATA VALID-1 tCAC tAA tDOH DATA VALID-2 tREZ tOHR tOFF tOHC DATA VALID-3 DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z tRAC tDZO tOEA tOCH tCPA tCPA tOEZ OE VIH VIL tODD 16 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Byte Read Cycle tRAS RAS VIH VIL tCSH tCRP tRCD tCP tHPC tCAS tCP tRSH tRP LCAS (or UCAS) VIH VIL tCAS VIH VIL tRAD tASR VIH VIL tRAH tASC tCAH tASC tCAH tASC tCAS tCRP UCAS (or LCAS) tCPRH tCAH tASR A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 COLUMN-3 ROW ADDRESS tRCS tCAL VIH VIL tDZC tCAL tRAL tCAL tRRH tRCH W DQ1~DQ8 VIH (or DQ9~DQ16) VIL (INPUTS) tCAC tAA DQ1~DQ8 VOH (or DQ9~DQ16) (OUTPUTS) VOL Hi-Z Hi-Z tREZ tOHR DATA VALID-2 tCLZ tDZC DQ9~DQ16 VIH (or DQ1~DQ8) (INPUTS) VIL tCPA tRDD tCDD Hi-Z tCAC tAA tCLZ tCAC tAA tDOH tWEZ tOFF tOHC DATA VALID-3 DQ9~DQ16 VOH (or DQ1~DQ8) (OUTPUTS) VOL Hi-Z DATA VALID-1 tRAC tDZO tOEA tOCH tCPA tOEZ OE VIH VIL tODD 17 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Early Write Cycle tRAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tCAL tASR VIH VIL tRAH tASC tCAH tASC tCAH tASC tCAL tCAH tRCD tCAS tCP tHPC tCAS tCP tRSH tCAS tRP RAS tCRP tASR ROW ADDRESS A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 COLUMN-3 tWCS VIH VIL tDS tWCH tWCS tWCH tWCS tWCH W tDH tDS tDH tDS tDH DQ1~DQ16 (INPUTS) VIH VIL DATA VALID-1 DATA VALID-2 DATA VALID-3 DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z OE VIH VIL 18 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Byte Early Write Cycle tRAS RAS VIH VIL tCSH tCRP VIH VIL tRCD VIH VIL tCAL tASR VIH VIL tRAH tASC tCAH tASC tCAH tASC tCAL tCAH tASR ROW ADDRESS tRP tHPC tRSH LCAS (or UCAS) tCAS tCP tCAS tCP tCAS tCRP UCAS (or LCAS) A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 COLUMN-3 tWCS VIH VIL tDS DQ1~DQ8 VIH (or DQ9~DQ16) VIL (INPUTS) tWCH tWCS tWCH tWCS tWCH W tDH tDS tDH DATA VALID-1 DATA VALID-3 DQ1~DQ8 VOH (or DQ9~DQ16) (OUTPUTS) VOL tDS DQ9~DQ16 VIH (or DQ1~DQ8) VIL (INPUTS) Hi-Z tDH DATA VALID-2 DQ9~DQ16 VOH (or DQ1~DQ8) (OUTPUTS) VOL Hi-Z OE VIH VIL 19 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Read-Write, Read-Modify-Write Cycle tRAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tASR VIH VIL tRAH tRAD tASC tCAH tASC tCAH tCWL tRCD tCAS tCP tHPRWC tCAS tRP RAS tRWL tCRP tASR ROW ADDRESS A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 tRCS VIH VIL tAWD tCWD tCWL tWP tRCS tAWD tCWD tWP W tRWD tDZC DQ1~DQ16 (INPUTS) VIH VIL Hi-Z tCPWD tDS tDH DATA VALID-1 tDZC Hi-Z tDS tDH DATA VALID-2 tCAC tAA tCLZ tCAC tAA tCLZ DATA VALID-1 DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z Hi-Z DATA VALID-2 Hi-Z tRAC tDZO tOEA tODD tOEZ tDZO tCPA tOEA tODD tOEH tOEZ OE VIH VIL 20 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Byte Read-Write, Read-Modify-Write Cycle tRAS VIH VIL tCSH tCRP VIH VIL tRCD tCAS tCP UCAS (or LCAS) VIH VIL tASR VIH VIL tRAH tRAD tASC tCAH tASC tCAH tCWL tHPRWC tCAS tRP RAS tRWL LCAS (or UCAS) tCRP tASR ROW ADDRESS A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 tRCS W VIH VIL tAWD tCWD tCWL tWP tRCS tAWD tCWD tWP tRWD tCPWD DQ1~DQ8 VIH (or DQ9~DQ16) VIL (INPUTS) DQ1~DQ8 VOH (or DQ9~DQ16) (OUTPUTS) VOL tDZC DQ9~DQ16 VIH (or DQ1~DQ8) VIL (INPUTS) Hi-Z Hi-Z tDS tDH DATA VALID-1 tDZC Hi-Z tDS tDH DATA VALID-2 tCAC tAA tCLZ tCAC tAA tCLZ DQ9~DQ16 VOH (or DQ1~DQ8) (OUTPUTS) VOL Hi-Z DATA VALID-1 Hi-Z DATA VALID-2 Hi-Z tRAC tDZO tOEA tODD tOEZ tDZO tCPA tOEA tODD tOEH tOEZ OE VIH VIL 21 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Mix Cycle (1) tRAS tRWL RAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tRAD tASR VIH VIL tRAH tASC tCAH tASC tCAH tASC tCAH tRCD tCAS tCP tHPC tCAS tCP tHPRWC tCAS tCWL tRP tCRP tASR ROW ADDRESS A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 COLUMN-3 tRCS tCAL W VIH VIL tDZC tWCS tWCH tCAL tCPWD tAWD tCWD tWP tDS DQ1~DQ16 (INPUTS) VIH VIL tCAC tAA tCLZ DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z DATA VALID-1 tDH tDZC tDS tDH DATA VALID-2 tAA tCAC tCLZ DATA VALID-3 DATA VALID-3 tWEZ tRAC tDZO VIH VIL tODD tOEA tOEZ tOCH OE tDZO tCPA tOEA tOEZ tOEH tODD 22 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Mix Cycle (2) RAS VIH VIL VIH LCAS/UCAS VIL tCP tASC VIH VIL tCAL tRCH tWCS W VIH VIL tHCWD tHAWD tHPWD DQ1~DQ16 (INPUTS) VIH VIL Hi-Z tCAS tCAH COLUMN-1 tCAS tASC tCAH tASC tCAH A0~A8 COLUMN-2 COLUMN-3 tCAL tWCH tDH tDS DATA VALID-2 tDZC Hi-Z tCAC tAA tCPA tWEZ DATA VALID-1 tCAC tAA tCPA tCLZ Hi-Z DQ1~DQ16 VOH (OUTPUTS) VOL tHCOD tHAOD tHPOD OE VIH VIL DATA VALID-3 tOEZ tODD tDZC tOEA 23 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Read Cycle (Hi-Z control by OE) tRAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tRAD tASR VIH VIL tRAH tASC tCAH tASC tCAH tCPRH tASC tCAH tRCD tCAS tCP tHPC tCAS tCP tRSH tCAS tRP RAS tCRP tASR A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 COLUMN-3 ROW ADDRESS tRCS VIH VIL tRAL tRRH tRCH W tWEZ tDZC tRDD tCDD Hi-Z DQ1~DQ16 (INPUTS) VIH VIL tCAC tAA tCLZ tCAC tAA tDOH DATA VALID-1 DATA VALID-1 tCAC tAA tCLZ DATA VALID-2 Hi-Z tREZ tOHR tOFF tOHC DATA VALID-3 DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z tRAC tDZO VIH VIL tOEA tOEZ tOCH tOEA tCPA tCHOL tCPA tOEZ tOEZ OE tOEPE tOEPE tODD 24 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM EDO Mode Read Cycle (Hi-Z control by W) tRAS VIH VIL tCSH tCRP VIH LCAS/UCAS VIL tRAD tASR VIH VIL tRAH tASC tCAH tASC tCAH tCPRH tASC tCAH tRCD tCAS tCP tHPC tCAS tCP tRSH tCAS tRP RAS tCRP tASR A0~A8 ROW ADDRESS COLUMN-1 COLUMN-2 COLUMN-3 ROW ADDRESS tRAL tRCS VIH VIL tDZC tWPE tRCH tRCS tRRH tRCH W tWEZ tRDD tCDD DQ1~DQ16 (INPUTS) VIH VIL tCAC tAA tCLZ tCAC tAA tDOH DATA VALID-1 Hi-Z tCAC tAA tWEZ DATA VALID-2 tCLZ Hi-Z tREZ tOHR tOFF tOHC DATA VALID-3 DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z tRAC tDZO VIH VIL tOEA tOCH OE tCPA tCPA tOEZ tODD 25 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM RAS-only Refresh Cycle tRC tRAS RAS VIH VIL tRPC tCRP VIH LCAS/UCAS VIL tASR tRAH tASR tCRP tRP A0~A8 VIH VIL ROW ADDRESS ROW ADDRESS W VIH VIL DQ1~DQ16 (INPUTS) VIH VIL DQ1~DQ16 VOH (OUTPUTS) VOL Hi-Z OE VIH VIL 26 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM CAS before RAS Refresh Cycle, Extended Refresh Cycle * tRC tRP RAS VIH VIL tRPC tCSR tCHR tRAS tRAS tRC tRP tRPC tCSR VIH LCAS/UCAS VIL tCPN tCHR tRPC tCRP tASR A0~A8 VIH VIL tRRH tRCH W VIH VIL ROW ADDRESS COLUMN ADDRESS tRCS DQ1~DQ16 (INPUTS) VIH VIL tREZ tOHR tOFF tOHC DQ1~DQ16 VOH (OUTPUTS) VOL tOEZ OE VIH VIL Hi-Z 27 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Hidden Refresh Cycle (Read) (Note 32) tRC tRAS RAS VIH VIL tCRP VIH LCAS/UCAS VIL tASR VIH VIL tRAD tRAH ROW ADDRESS tRC tRP tRAS tRP tRCD tRSH tCHR tASC tCAH COLUMN ADDRESS tASR A0~A8 ROW ADDRESS tRCS tRAL VIH W VIL tDZC DQ1~DQ16 (INPUTS) VIH VIL tCAC tAA tCLZ Hi-Z DATA VALID Hi-Z tRRH tCDD tRDD tREZ tOHR tOFF tOHC Hi-Z DQ1~DQ16 VOH (OUTPUTS) VOL tRAC tDZO VIH VIL tOEA tORH tOEZ tODD OE Note 32 : Early write, delayed write, read write or read modify write cycle is applicable instead of read cycle. Timing requirements and output state are the same as that of each cycle shown above. 28 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Self Refresh Cycle * (Note 30) tRP RAS VIH VIL tRASS tRPS tRPC tRPC VIH LCAS/UCAS VIL tCPN tASR A0~A8 VIH VIL tRRH tRCH W VIH VIL tRDD tCDD DQ1~DQ16 (INPUTS) VIH VIL Hi-Z ROW ADDRESS tCSR tCHS tCRP tRCS tREZ tOHR tOFF tOHC Hi-Z DQ1~DQ16 VOH (OUTPUTS) VOL tOEZ tODD OE VIH VIL 29 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM Note 30 : Self refresh sequence Two refreshing methods should be used properly depending on the low pulse width (tRASS) of RAS signal during self refresh period. 1. Distributed refresh during Read/Write operation (A) Timing Diagram Read / Write Cycle Self Refresh Cycle Read / Write Cycle tNSD RAS tRASS100s tSND last refresh cycle first refresh cycle Table 2 Read / Write Cycle CBR distributed refresh RAS only distributed refresh Read / Write Self Refresh tNSD250s tNSD16s Self Refresh Read / Write tSND250s tSND16s (B) Definition of distributed refresh tREF tREF / 512 tREF / 512 RAS refresh cycle read/write cycles refresh cycle refresh cycle read/write cycles Definition of CBR distributed refresh (Including extended refresh) The CBR distributed refresh performs more than 512 constant period (250s max.) CBR cycles within 128 ms. Definition of RAS only distributed refresh All combinations of nine row address signals (A0 ~ A8) are selected during 512 constant period (16s max.) RAS only refresh cycles within 8.2 ms. Note: Hidden refresh may be used instead of CBR refresh. RAS/CAS refresh may be used instead of RAS only refresh. 1.1 CBR distributed refresh Switching from read/write operation to self refresh operation. The time interval from the falling edge of RAS signal in the last CBR refresh cycle during read/write operation period to the falling edge of RAS signal at the start of self refresh operation should be set within tNSD (shown in table 2). Switching from self refresh operation to read/write operation. The time interval from the rising edge of RAS signal at the end of self refresh operation to the falling edge of RAS signal in the first CBR refresh cycle during read/write operation period should be set within tSND (shown in table 2). 1.2 RAS only distributed refresh Switching from read/write operation to self refresh operation. The time interval t NSD from the falling edge of RAS signal in the last RAS only refresh cycle during read/write operation period to the falling edge of RAS signal at the start of self refresh operation should be set within 16s. Switching from self refresh operation to read/write operation. The time interval tSND from the rising edge of RAS signal at the end of self refresh operation to the falling edge of RAS signal in the first CBR refresh cycle during read/write operation period should be set within 16s. 30 M5M4V4265CJ,TP-5,-5S:under development MITSUBISHI LSIs M5M4V4265CJ,TP-5,-6,-7,-5S,-6S,-7S EDO (HYPER PAGE) MODE 4194304-BIT (262144-WORD BY 16-BIT) DYNAMIC RAM 2. Burst refresh during Read/Write operation (A) Timing diagram Read / Write Self Refresh Read / Write tNSB tRASS100s tSNB RAS first refresh cycles refresh cycles 511 cycles refresh cycles 511 cycles last refresh cycles Table 3 Read / Write Cycle CBR burst refresh RAS only burst refresh Read / Write Self Refresh tNSB8.2ms Self Refresh Read / Write tSNB8.2ms tNSB+tSNB8.2ms (B) Definition of burst refresh 8.2ms RAS refresh cycles 512 cycles read/write cycles Definition of CBR burst refresh The CBR burst refresh performs more than 512 continuous CBR cycles within 8.2 ms. Definition of RAS only burst refresh All combination of nine row address signals (A0~A8) are selected during 512 continuous RAS only refresh cycles within 8.2 ms. 2.1 CBR burst refresh Switching from read/write operation to self refresh operation. The time interval tNSB from the falling edge of RAS signal in the first CBR refresh cycle during read/write operation period to the falling edge of RAS signal at the start of self refresh operation should be set within 8.2 ms. Switching from self refresh operation to read/write operation. The time interval tSNB from the rising edge of RAS signal at the end of self refresh operation to the falling edge of RAS signal in the last CBR refresh cycle during read/write operation period should be set within 8.2 ms. 2.2 RAS only burst refresh Switching from read/write operation to self refresh operation. The time interval from the falling edge of RAS signal in the first RAS only refresh cycle during read/write operation period to the falling edge of RAS signal at the start of self refresh operation should be set within tNSB (shown in table 3). Switching from self refresh operation to read/write operation. The time interval from the rising edge of RAS signal at the end of self refresh operation to the falling edge of RAS signal in the last RAS only refresh cycle during read/write operation period should be set within tSNB (shown in table 3). 31 M5M4V4265CJ,TP-5,-5S:under development |
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