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Description
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
The device is CMOS Dynamic RAM organized as 4,194,304 words x 4 bits. It is fabricated with an advanced submicron CMOS technology and designed to operate from a single 5V only or 3.3V only power supply. Low voltage operation is more suitable to be used on battery backup, portable electronic application. A new refresh feature called " self-refresh " is supported and very slow CBR cycles are being performed. It is packaged in JEDEC standard 26/24 - pin plastic SOJ or TSOP (II).
Features * Single 5V ( 10 %) or 3.3V ( 10 %) only power supply * High speed tRAC access time : 50/60 ns * Low power dissipation - Active mode : 5V version 605/550 mW (Max.) 3.3V version 396/360 mW (Max.) - Standby mode : 5V version 1.375 mW (Max.) 3.3V version 0.54 mW (Max.) * Fast Page Mode access * I/O level : TTL compatible (Vcc = 5V) LVTTL compatible (Vcc = 3.3V) * 2048 refresh cycles in 32 ms (Std) or 128ms (S - version) * 4 refresh mode : - RAS only refresh - CAS-before-RAS refresh - Hidden refresh - Self - refresh (S - version)
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Pin configuration
26/24 - PIN 300mil Plastic SOP
VSS DQ4 DQ3 CAS OE A9
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Pin configuration
26/24 - PIN 300mil Plastic TSOP (II)
26 25 24 23 22 21
VCC DQ1 DQ2 WE RAS NC
1 2 3 4 5 6
VCC DQ1 DQ2 WE RAS NC
1 2 3 4 5 6
26 25 24 23 22 21
VSS DQ4 DQ3 CAS OE A9
VG26(v) (S)17400DJ
VG26(v) (S)17400DJ
A10 A0 A1 A2 A3
8 9 10 11 12 13
19 18 17 16 15 14
A8 A7 A6 A5 A4 VSS
A10 A0 A1 A2 A3 VCC
8 9 10 11 12 13
19 18 17 16 15 14
A8 A7 A6 A5 A4 VSS
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VCC
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Pin Description
Pin Name A0 - A10 Function Address inputs - Row address - Column address - Refresh address Data - in/data - out Row address strobe Column address strobe Write enable Output enable Power (+ 5V or + 3.3V) Ground A0 - A10 A0 - A10 A0 - A10
DQ1 ~ DQ4 RAS CAS WE OE Vcc Vss
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VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Block Diagram
WE
CAS
CONTROL LOGIC
DATA - IN BUFFER DQ1 DQ4
NO. 2 CLOCK GENERATOR
DATA - OUT BUFFER OE
COLUMNADDRESS BUFFERS (11) A0 t4U.com
COLUMN DECODER
A1
A2 A3 A4 A5 A6 A7
REFRESH CONTROLLER
2048
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SENSE AMPLIFIERS I/O GATING 2048 x 4
REFRESH COUNTER
ROW DECODER
ROW ADDRESS BUFFERS (11)
2048
A8 A9 A10
2048 x 2048 x 4 MEMORY ARRAY
RAS
NO. 1 CLOCK GENERATOR
Vcc Vss
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Truth Table
ADDRESSES FUNCTION STANDBY READ WRITE : (EARLY WRITE) READ WRITE PAGE MODE READ 1st Cycle 2st Cycle RAS H L L L L L L L L L
LHL LHL
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
CAS
HX
WE X H L
HL
OE X L X LH L L X X
LH LH
ROW X ROW ROW ROW ROW n/a ROW n/a ROW n/a ROW ROW ROW
COL X High - Z
DQS
Notes
L L L HL HL HL HL
HL HL
COL Data - Out COL Data - In COL Data - Out, Data - In COL Data - Out COL Data - Out COL Data - In COL Data - In COL Data - Out, Data - In COL Data - Out, Data - In COL Data - Out COL Data - In n/a X High - Z High - Z 1
H H L L
HL HL
PAGE 1st Cycle MODE WRITE 2st Cycle PAGE - MODE 1st Cycle READ - WRITE 2st Cycle HIDDEN REFRESH READ WRITE
L L H L
H L X
L X X
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RAS - ONLY REFRESH CBR REFRESH Notes : 1. EARLY WRITE only.
L
HL
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Absolute Maximum Rating Parameter Voltage on any pin relative to Vss Supply voltage relative to Vss Short circuit output current Power dissipation Operating temperature Storage temperature 5V 3.3V 5V 3.3V Symbol VT Vcc IOUT PD TOPT TSTG Value -1.0 to + 7.0 -0.5 to + 4.6 -1.0 to + 7.0 -0.5 to + 4.6 50 1.0 0 to + 70 -55 to + 125
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Unit V V mA W C C
Recommended DC Operating Conditions Parameter/Condition Supply Voltage Input High Voltage, all inputs Input Low Voltage, all inputs Symbol Vcc VIH VIL Min 4.5 2.4 -1.0 5 Volt Version Typ Max 5.0 5.5 VCC + 1.0 0.8 Min 3.0 2.0 -0.3 3.3 Volt Version Typ Max 3.3 3.6 VCC + 0.3 0.8 Unit V V V
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Capacitance Ta = 25C, VCC = 5V 10% or 3.3V 10 %, f = 1MHz Parameter Input capacitance (Address) Input capacitance (RAS, CAS, OE, WE) Symbol Cl1 Cl2 Typ Max 5 7 Unit pF pF pF Note 1 1 1,2
Output capacitance CI/O 7 (Data - in, Data - out) Note : 1. Capacitance measured with effective capacitance measuring method. 2. CAS = VIH to disable Dout.
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DC Characteristics; 5 - Volt verion (Ta= 0 to 70C, VCC = + 5V 10%, Vss = 0V)
VG26 (V) (S) 17400D Parameter Operating current Low power S - version Symbol Test Conditions RAS cycling CAS cycling tRC = min. TTL interface RAS, CAS = VIH Dout = high - Z CMOS interface RAS, CAS Standby Standard Current power version ICC2 -5 Min Max 110 2 Min -6 Max
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Unit Notes
ICC1
100 mA 2 mA
1, 2
-
0.25
-
0.25 mA
V CC - 0.2V
2 2
Dout = high - Z TTL interface RAS, CAS = VIH Dout = high - Z CMOS interface RAS, CAS RAS - only refresh current Fast page mode current CAS - before - RAS refresh current Self - refresh currant (S - Version) CAS - before - RAS long refresh current (S - Version) ICC3 ICC4 tPC = min. ICC5 ICC8 ICC9 mA 1 1 mA
V CC - 0.2V
110 80 110 350 500 100
Dout = high - Z
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RAS cycling, CAS = VIH tRC = min.
1, 2 mA 1,3 mA 1, 2 mA
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70 100 350 A 500 A
tRC = min. RAS, CAS cycling tRASS 100S Standby : VCC - 0.2V RAS CAS before RAS refresh : 2048 cycles/128ms RAS, RAS : 0V V IL 0.2V VCC - 0.2V V IH VIH (Max) Dout = high - Z, t RAS 300ns
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DC Characteristics ; 5 - Volt Version (cont.) (Ta = 0 to 70C, VCC = + 5V 10%, Vss = 0V) Parameter lnput leakage current Output leakage current Symbol ILI ILO Test Conditions 0V Vin V CC + 0.5V 0V Vout VC C + 0.5V Dout = Disable VG26 (V) (S) 17400D -5 -6 Min Max Min Max -5 -5 5 5 -5 -5
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Unit Notes
5 A 5 A
Output high VOH lOH = -5mA 2.4 - 2.4 -V voltage Output low VOL lOL = + 4.2mA 0.4 0.4 V voltage Notes : 1. lCC is specified as an average current. It depends on output loading condition and cycle rate when the device is selected. lCC max is specified at the output open condition. 2. Address can be changed once or less while RAS = VIL. 3. For lCC4, address can be changed once or less within one Fast page mode cycle time.
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DC Characteristics ; 3.3 - Volt Verion (Ta = 0 to 70C, VCC = + 3.3V 10%, Vss = 0V) VG26 (V) (S) 17400D Parameter Symbol Test Conditions Min Operating current Low power S - version ICC1 RAS cycling CAS cycling tRC = min. LVTTL interface RAS, CAS = VIH Dout = high - Z CMOS interface RAS, CAS VCC - 0.2V Dout = high - Z Standby Standard Current power version ICC2 LVTTL interface RAS, CAS = VIH Dout = high - Z CMOS interface RAS, CAS VCC - 0.2V Dout = high - Z 2 2 -5 Max 110 0.5 Min -6 Max
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Unit Notes
100 mA 0.5 mA
1, 2
-
0.25
-
0.25 mA
mA 0.5 0.5 mA 110 80 110 250 300 100 mA 70 mA 100 mA 250 A 300 A 1, 2 1,3 1, 2
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RAS - only refresh current Fast page mode current CAS - before - RAS refresh current Self - refresh currant (S - Version) CAS - before - RAS long refresh current (S - Version)
ICC3 ICC4
RAS cycling, CAS = VIH tRC = min. tPC = min.
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ICC5 ICC8 ICC9
tRC = min. RAS, CAS cycling t RASS 100S Standby : VCC - 0.2V RAS CAS before RAS refresh : 2048 cycles/128ms RAS, RAS : 0V V I L 0.2V VCC - 0.2V V IH V IH (Max) Dout = high - Z, t RAS 300ns
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DC Characteristics ; 3.3 - Volt Version (cont.) (Ta = 0 to 70C, VCC = + 3.3V 10%, VSS= 0V) Parameter Input leakage current Output leakage current Symbol ILI ILO Test Conditions 0V Vin V CC + 0.3V 0V Vout VC C + 0.3V Dout = Disable lOH = -2mA
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
VG26 (V) (S) 17400D Unit Notes -5 -6 Min Max Min Max -5 5 -5 5 A -5 5 -5 5 A
Output high VOH 2.4 - 2.4 -V voltage Output low VOL lOL = + 2mA 0.4 0.4 V voltage Notes : 1. lCC is specified as an average current. It depends on output loading condition and cycle rate when the device is selected. lCC max is specified at the output open condition. 2. Address can be changed once or less while RAS = VIL. 3. For lCC4, address can be changed once or less within one Fast page mode cycle time.
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AC Characteristics (Ta = 0 to + 70C, VCC = 5V 10% or 3.3V 10%, VSS = 0V) * 1, * 2, * 3, * 4 Test conditions * Output load : two TTL Loads and 100pF(VCC = 5.0V 10%) one TTL Load and 100pF(V CC = 3.3V 10%) * Input timing reference levels : VIH = 2.4V, VlL = 0.8V (VCC = 5.0V 10%); VIH = 2.0V, VlL = 0.8V (VCC = 3.3V 10%) * Output timing reference levels : VOH = 2.0V, VOL = 0.8V (VCC = 5V 10%, 3.3V 10%)
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Read, Write, Read - Modify - Write and Refresh Cycles
(Common Parameters) VG26 (V) (S) 17400D -5 Parameter Random read or write cycle time RAS precharge time Symbol tRC tRP tCPN tRAS Min 90 30 10 50 Max 10000 Min 110 40 10 60 15 0 10 0 10 14 12 30 15 60 5 15 1 0 0 0 -6 Max 10000 10000 45 30 50 32 128 Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ms ms ns ns ns 11 10 8 9 7 5 6 Notes
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CAS precharge time in normal mode RAS pulse width CAS pulse width Row address setup time Row address hold time Column address setup time Column address hold time RAS to CAS delay time RAS to column address delay time Column address to RAS lead time RAS hold time CAS hold time CAS to RAS precharge time OE to Din delay time Transition time (rise and fall) Refresh period Refresh period (S - Version) CAS to output in Low-Z CAS delay time from Din OE delay time from Din
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tCAS 12 10000 .com tASR tRAH tASC tCAH tRCD tRAD tRAL tRSH tCSH tCRP tOED tT tREF tREF tCLZ tDZC tDZO 0 8 0 8 12 10 25 13 50 5 12 1 0 0 0 37 25 50 32 128 -
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Read Cycle VG26 (V) (S) 17400D -5 Parameter Access time from RAS Access time from CAS Access time from column address Access time from OE Read command setup time Read command hold time to CAS Read command hold time to RAS Output buffer turn-off time Output buffer turn-off time from OE Write Cycle Symbol tRAC tCAC tAA tOEA tRCS tRCH tRRH tOFF tOEZ Min 0 0 0 0 0 Max 50 13 25 13 13 13 Min 0 0 0 0 0 -6 Max 60 15 30 15 15 15
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Unit ns ns ns ns ns ns ns ns ns
Notes 12 13,14 14,15
7 10,16 16 17 17
VG26 (V) (S) 17400D -5 Parameter
Write command setup time
-6 Max Min 0 10 10 15 10 0 10 Max -
Symbol tWCS tWCH t
Min 0 8
Unit ns ns ns ns ns ns ns
Notes 7,18
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Write command hold time Write command pulse width Write command to RAS lead time Write command to CAS lead time Data-in setup time Data-in hold time
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8 WP .com tRWL tCWL tDS tDH 13 8 0 8
19 19
Read - Modigy - Write Cycle VG26 (V) (S) 17400D -5 Parameter Read - modify - write cycle time RAS to WE delay time CAS to WE delay time Column address to WE delay time OE hold time from WE Symbol tRWC tRWD tCWD tAWD tOEH Min 125 65 30 40 8 Max Min 150 80 35 50 10 -6 Max Unit ns ns ns ns ns 18 18 18 Notes
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Refresh Cycle VG26 (V) (S) 17400D -5 Parameter CAS setup time (CBR refresh) CAS hold time (CBR refresh) RAS precharge to CAS hold time RAS pulse width (self refresh) RAS precharge time (self refresh) CAS hold time (CBR self refresh) WE setup time WE hold time Fast Page Mode Cycle Symbol tCSR tCHR tRPC tRASS tRPS tCHS tWSR tWHR Min 10 10 5 100 90 -50 0 10 Max Min 10 10 5 100 110 -50 0 10 -6 Max -
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Unit ns ns ns s ns ns ns ns
Notes
10 7
VG26 (V) (S) 17400D -5 Parameter
Fast page mode cycle time Fast page mode CAS Precharge time
-6 Max 10
5
Symbol tPC tCP tRASP
Min 35 10 50
Min 40 10
60
Max 10
5
Unit ns ns ns ns ns
Notes
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Fast page mode RAS pulse width Access time from CAS precharge RAS hold time from CAS precharge
20 10,14
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tCPA .com tCPRH 30
30 -
35
35 -
Fast Page Mode Read Modify Write Cycle VG26 (V) (S) 17400D -5 Parameter Fast page mode read - modify - write cycle CAS precharge to WE delay time Fast page mode read - modify - write cycle time Symbol tCPW tPRWC Min 45 70 Max Min 55 80 -6 Max Unit ns ns Notes 11
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Notes : 1. AC measurements assume tT = 5ns. used, a minimum of eight CAS-before-RAS refresh cycles are required.
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
2. An initial pause of 100 s is required after power up, and it followed by a minimum of eight initialization cycles (RAS-only refresh cycle or CAS-before-RAS refresh cycle). If the internal refresh counter is
3. In delayed write or read-modify-write cycles, OE must disable output buffer prior to applying data to the device. 4. All the VCC and VSS pins shall be supplied with the same voltage. 5. tRAS(min) = tRWD(min) + tRWL(min) + t T in read - modify-write cycle. 6. tCAS(min) = tCWD(min) + tCWL(min) + t T in read - modify-write cycle. 7. tASC(min), tRCS(min), tWCS (min) and tRPC are determined by the falling edge of CAS. 8. t RCD(max) is specified as a reference point only, and t RAC(max) can be met with the tRCD(max) limit. Otherwise, tRAC is controlled exclusively by tCAC if tRCD is greater than the specified t RCD(max) limit. 9. tRAD(max) is specified as a reference point only, and tRAC(max) can be met with the tRAD(max) limit. Otherwise, tRAC is controlled exclusively by tAA if tRAD is greater than the specified tRAD (max) limit. 10. tCRP, tCHR , tRCH, tCPA and tCPW are determined by the rising edge of CAS. 11. V IH(min) and V IL(max) are reference levels for measuring timing or input signals. Therefore, transition
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time is measured between VIH and VIL. 12. Assumes that t RCD

tRCD(max) and tRAD
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tRAD(max).
tRAD(max). If tRCD or tRAD is greater than the maximum
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recommended value shown in this table, t RAC exceeds the value shown. 13. Assumes that tRCD tRCD(max) and tRAD

14. Access time is determined by the maximum among t AA, tCAC , tCPA. 15. Assumes that tRCD tRCD(max) and tRAD tRAD(max).
16. Either tRCH or tRRH must be satisfied for a read cycle. 17. t OFF(max) and tOEZ(max) define the time at which the output achieves the open circuit condition ( high impedance). 18. tWCS, tRWD, tCWD, and tAWD are not restrictive operating parameters. They are included in the data sheet as electrical characteristics only. If t WCS
tWCS(min), the cycle is an early write cycle and the
data output will remain open circuit (high impedance) throughout the entire cycle. If tRWD tCWD
tRWD(min),
tCWD(min), tAWD
tAWD(min), and tCPW
tCPW(min), the cycle is a read-modify-write and the
data output will contain data read from the selected cell. If neither of the above sets of conditions is satisfied, the condition of the data output (at access time) is indeterminate. 19. These parameters are referenced to CAS in an early write cycle and to WE edge in a delayed write or a read-modify-write cycle. 20. tRASP defines RAS pulse width in Fast page mode cycles.
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Timing Waveforms * Read Cycle
t RC t RAS t RP
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
RAS
t CRP t CSH t RCD t T t RSH t CAS t CPN
CAS
t RAD
t RAL
t ASR
t RAH
t ASC
t CAH
ADDRESS
Row
Column
t RRH
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t RCS
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t RCH
WE
OE
t OEA t CAC t AA t RAC t OEZ t OFF
DQ1 ~ DQ4
t CLZ
DOUT
Note :
= don't care = Invalid Dout
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*Early Write Cycle
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
t RC t RAS t RP
RAS
t CSH t RCD t T t RSH
t CRP
t CPN t CAS
CAS
t RAD t ASR t RAH Row t ASC t CAH Column
t RAL
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ADDRESS
t RAL
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t WCS t WCH
WE
t DS
t DH
DQ1 ~ DQ4
D IN
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* Delayed Write Cycle
t RC t RAS t RP
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
RAS
t CSH t RCD t T t RSH t CAS
t CRP
t CPN
CAS
t ASR
t RAH
t ASC
t CAH
ADDRESS
Row
Column
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t RCS
t CWL
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t RWL WP
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WE
t OED
t OEH
OE
t DS
t DS
t DH
DQ1 ~ DQ4
OPEN
DIN
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* Read - Modify - Write Cycle
t RWC t RAS t RP
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
RAS
t T t RCD t CAS t CRP t CPN
CAS
t RAD t ASR t RAH t ASC t CAH
ADDRESS
Row
Column t RCS t CWD t AWD t RWD t CWL t RWL t WP
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WE
t DZC t DS
t DH
DQ1 ~ DQ4
OPEN
DIN
t DZO
t OED
t OEH
OE
t OEA t CAC t AA t OEZ
t RAC
DQ1 ~ DQ4
DOUT
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* Fast Page Mode Read Cycle
t RASP t CPRH
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
t RP
RAS
t CRP t CSH t CRP t RCD t CAS t CP t PC t CAS t CP t RSH t CAS t CPN
CAS
t RAD t ASR t RAH t ASC t CAH t ASC t CAH t ASC
t RAL t CAH
ADDRESS
Row
Column 1
Column 2
Column N
Row
t RCS
t RRH t RCH
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WE
WE
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t OEA t OEA t OEA
OE
OE
t RAC t AA t CPA t AA t OEZ t OFF t CAC t OFF t CLZ t CLZ t CAC t OFF t CPA t AA t OEZ t CAC t CLZ t OEZ
DQ1 ~ DQ4
DOUT 1 DOUT 2
DOUT N
OPEN
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* Fast Page Mode Early Write Cycle
t RASP
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
t RP
RAS
tT t CSH t RCD t CAS t CP t PC t CAS t CP t RSH t CAS
t CRP t CPN
CAS
t ASR
t RAH
t ASC
t CAH
t ASC
t CAH
t ASC
t CAH
ADDRESS
Row
Column 1
Column 2
Column N
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t WCS t WCH t WCS t WCH t WCS t WCH
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WE WE
t DS
t DH
t DS
t DH
t DS
t DH
DQ1 ~ DQ4
DIN 1
DIN 2
DIN N
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* Fast Page Mode Delayed Write Cycle
t RASP tCPRH
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
t RP
RAS
t T t RCD t CP t CAS t PC t CAS t CP t RSH t CAS
t CSH
t CRP
CAS
t RAD t ASR t RAH t ASC t CAH t ASC t CAH t ASC t CAH
ADDRESS
Row
Column 1 Column 1 t CWL
Column 2 t CWL t RCS
Column N t CWL
t RWL
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WE WE
t RCS
t RCS
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t WP t DS t DZC t DH t DZC t WP t DS t DH t WP t DZC t DS t DH OPEN
DQ1 ~ DQ4
t DZO
OPEN
DIN 1
t DZO
OPEN
DIN 2
t DZO
DIN N
t OED t OEH
t OED
t OEH
t OED
t OEH
OE
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* Fast Page Mode Read - Modify - Write Cycle
t RASP tCPRH
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
t RP
RAS
t T t RCD t CAS t CP
t PRWC t CAS t CP t CAS
t CRP
CAS
t RAD t ASR t RAH t ASC t CAH t ASC t CAH t ASC t CAH
ADDRESS
Row
Column 1 Column 1 t RWD t AWD t CWD t CWL
Column 2 t CPW t AWD t CWD t CWL
Column N t CWL t CPW t AWD t CWD
t RWL
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WE WE
t RCS t DZC
t RCS
t RCS
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t WP t DS t DH t DZC t WP t DS t DH t DZC t WP t DS t DH
DQ1 ~ DQ4
OPEN
DIN 1
OPEN
DIN 2
DIN N
t DZO t OED t OEA t CPA t OEH
t DZO
t OED t OEH
t DZO t CPA
t OED
t OEA
t OEH t OEA
OE
t AA t RAC t CLZ t OEZ t CLZ t OEZ t CLZ t CAC t CAC t AA t OEA t CAC t AA
t OEZ
DQ1 ~ DQ4
DOUT 1
DOUT 2
DOUT N
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RAS - Only Refresh Cycle
t RC t RAS t RP
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
RAS
tT t CRP tRPC tCRP
CAS
tASR
tRAH
ADDRESS
Row
tOFF OPEN
DQ1 ~ DQ4
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CAS - Before - RAS Refresh Cycle
tRC tRP tRAS tRP t RAS
tRC t RP
RAS
tRPC
tT t CSR t CHR
tRPC tCSR t CHR
tCRP
CAS
tWSR tWHR tWSR tWHR
WE
tOFF OPEN
DQ1 ~ DQ4
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CBR Self - Refesh Cycle
t RASS t RPS
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
RAS
t RPC t CSR tCHS
CAS
tOFF
High lmpedance
DQ1 - DQ4
tWSR
tWHR
WE
OPEN
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Document:1G5-0126 DataSheet 4 U .com
Rev.1
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VIS
* Hidden Refresh Cycle
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
t RC tRAS
(READ)
t RC t RP tRAS
(REFRESH)
t RC t RP tRAS
(REFRESH)
t RP
RAS
tT
t CHR t RSH t RCD tCAS
tCRP
CAS
t RAD t ASR t RAH tASC
t RAL tCAH
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ADDRESS
Row
Column
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tRRH t RCS tRCH
WE
OE
t OEA t CAC t AA t RAC t OEZ t OFF
DQ1 ~ DQ4
D OUT
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Document:1G5-0126 DataSheet 4 U .com
Rev.1
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Ordering information Part Number
VG26 (V) (S) 17400DJ - 5 VG26 (V) (S) 17400DJ - 6
VG26(V)(S)17400D 4,194,304 x 4 - Bit CMOS Dynamic RAM
Access Time
50 ns 60 ns
Package
300mil 26/24 - Pin Plastic SOJ
VG26 (V) (S) 17400DJ - 5
* VG * 26 *V *S * 17400 *D *J *5 * VIS Memory Product * Technology * 3.3V version * Self refresh * Device Type and Configuration * Revision * Package Type (J : SOJ , T : TSOJ II) * Speed (5 : 50 ns, 6 : 60 ns)
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Packaging information
* 300 mil, 26/24-Pin Plastic SOJ
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D DIM A A1 A2 b b1 b2 c c1 D E E1 E2 e R1 MILLIMETERS INCHES MIN. NOM. MAX. MIN. NOM. MAX. 3.25 3.51 3.76 0.128 0.138 0.148 2.08 ----0.082 ----2.54 REF. 0.100 REF. 0.41 0.41 0.66 0.18 0.18 17.02 --0.46 --0.51 0.48 0.81 0.016 0.016 0.026 0.007 0.007 0.670 --0.018 --0.020 0.019 0.032 1 6 8 13 b 26 21 19 14 b1
c1 c E1 E BASE METAL WITH PLATING
--0.30 --0.28 17.15 17.27 8.51 BASIC 7.49 7.62 7.75 6.78 BASIC 1.27 BASIC 0.76 --1.02
--0.012 0.011 --0.675 0.680 0.335 BASIC 0.295 0.300 0.305 0.267 BASIC 0.050 BASIC 0.030 --0.040
SECTION B-B
C L
A2
0.025" MIN. A A1
B B E2
NOTE: 1. CONTROLLING DIMENSION : INCHES 2. DIMENSION D DOES NOT INCLUDE MOLD PROTRUSION. MOLD PROTRUSION SHALL NOT EXCEED 0.006"(0.15mm) PER SIDE. DIMENSION E1 DOES NOT INCLUDE INTERLEAD PROTRUSION. INTERLEAD PROTRUSION SHALL NOT EXCEED 0.01"(0.25mm) PER SIDE. 3. DIMENSION b2 DOES NOT INCLUDE DAMBAR PROTRUSION OR INTRUSION. DAMBAR PROTRUSION SHALL NOT CAUSE THE SHOULDER WIDTH TO EXCEED b2 MAX BY MORE THAN 0.005"(0.127mm) DAMBAR INTRUSION SHALL NOT REDUCE THE SHOULDER WIDTH TO LESS THAN 0.001"(0.025mm) BELOW b2 MIN.
e b2 b 0.007"M 4-e 0.004"
RAD R1 SEATING PLANE
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Document:1G5-0126 DataSheet4 U .com
Rev.1
Page 25

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