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Semiconductor
MR27V6452D
4,194,304-Word x 16-Bit or 8,388,608-Word x 8-Bit 8-Word x 16-Bit or 16-Word x 8-Bit Page Mode One Time PROM
DESCRIPTION
1A
The MR27V6452D is a 64Mbit electrically Programmable Read-Only Memory with page mode. Its configuration can be electrically switched between 4,194,304 word x 16bit and 8,388,608 word x 8 bit. The MR27V6452D operates on a single +3.3V power supply and is TTL compatible. The MR27 V6452D provides Page mode which can greatly reduce the read access time. Since the MR27V6452 D operates asynchronously , external clocks are not required , making this device easy-to-use. The MR27V6452D is suitable as large-capacity fixed memory for microcomputers and data terminals. It is manufactured using a CMOS double silicon gate technology and is offered in 44-pin SOP package.
FEATURES
* 4,194,304 word x 16bit / 8,388,608 word x 8bit electrically switchable configuration * Single +3.3V power supply * Access time 120ns Page mode access time 30ns * Input / Output TTL compatible * Three-state output * Package 44-pin plastic SOP (SOP44-P-600-1.27-K) (Product name : MR27V6452DMA)
November 1999
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MR27V6452D
PIN CONFIGURATION (TOP VIEW)
A21 1 A18 2 A17 3 A7 4 A6 5 A5 6 A4 7 A3 8 A2 9 A1 10 A0 11 CE 12 VSS 13 OE 14 D0 15 D8 16 D1 17 D9 18 D2 19 D10 20 D3 21 D11 22
44 A20 43 A19 42 A8 41 A9 40 A10 39 A11 38 A12 37 A13 36 A14 35 A15 34 A16 33 BYTE/Vpp 32 VSS 31 D15/A-1 30 D7 29 D14 28 D6 27 D13 26 D5 25 D12 24 D4 23 VCC 44-pin SOP
PIN NAMES D15/A-1 A0-A21 D0-D14 CE OE VCC VSS BYTE/VPP Address input Data output Chip enable Output enable
FUNCTIONS Data output / Address input
Power supply voltage GND Mode switch / Program power supply voltage
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MR27V6452D
BLOCK DIAGRAM
A-1
X8/X16 Switch
CE
OE
BYTE/VPP PGM
CE
OE
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21
Row Decoder
Memory Matrix
Address Buffer
4,194,304X16-Bit or 8,388,608X8-Bit
Column Decoder
Multiplexer & Page Data Latch
Output Buffer
D0 D1
D2 D3
D4 D5
D6 D7
D8
D10 D9
D12
D14 D15
D11
D13
In 8-bit output mode, these pins are three-stated and pin D15 functions as the A-1 address pin.
FUNCTION TABLE
MODE READ (16-Bit) READ (8-Bit) OUTPUT DISABLE STAND-BY PROGRAM PROGRAM INHIBIT PROGRAM VERIFY * : Don't Care CE L L L H L H H OE BYTE/VPP L L H * H H L 9.75V 4.0V H L H L H L 3.3V DOUT VCC D0 - D7 D8 - D14 DOUT Hi-Z Hi-Z * Hi-Z * DIN Hi-Z DOUT D15/A-1 L/H
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MR27V6452D
ABSOLUTE MAXIMUM RATINGS
Parameter Operating temperature under bias Storage temperature Input voltage Output voltage Power supply voltage Program power supply voltage Power dissipation per package Symbol Topr Tstg VI VO VCC VPP PD relative to VSS Condition Value 0 to 70 -55 to 125 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 -0.5 to 5 -0.5 to 11.5 1.0 Unit
C C
V V V V W
RECOMMENDED OPERATING CONDITIONS FOR READ
(Ta=0 to 70C) Parameter VCC power supply voltage VPP power supply voltage Input "H" level Input "L" level Voltage is relative to Vss * : Vcc+1.5V (Max.) when pulse width of overshoot is less than 10nS. ** : -1.5V (Min.) when pulse width of undershoot is less than 10nS. Symbol VCC VPP VIH VIL VCC=3.0V-3.6V Condition Min. 3.0 -0.5 2.2 -0.5** Typ. Max. 3.6 VCC+0.5 VCC+0.5* 0.6 Unit V V V V
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MR27V6452D
ELECTRICAL CHARACTERISTICS (Read operation)
DC Characteristics (VCC=3.3V0.3V, Ta=0 to 70C) Parameter Input leakage current Output leakage current VCC power supply current (Standby) VCC power supply current (Read) VPP power supply current Input "H" level Input "L" level Output "H" level Output "L" level Voltage is relative to Vss * : Vcc+1.5V (Max.) when pulse width of overshoot is less than 10nS. ** : -1.5V (Min.) when pulse width of undershoot is less than 10nS. AC Characteristics (VCC=3.3V0.3V, Ta=0 to 70C) Parameter Address access cycle time Address access time Page access cycle time Page access time CE access time OE access time Output disable time Output hold time Symbol TC TACC TPC TPAC TCE TOE TCHZ TOHZ TOH Condition CE=OE=VIL OE=VIL CE=VIL OE=VIL CE=VIL CE=OE=VIL Min. 120 30 0 0 0 Max. 120 30 120 40 30 25 Unit ns ns ns ns ns ns ns ns ns Symbol ILI ILO ICS1 ICS2 ICCA IPP VIH VIL VOH VOL Condition VI=0 to Vcc VO=0 to Vcc CE=VCC CE=VIH CE=VIL , OE=VIH tc=120ns VPP=VCC IOH=-400A IOL=2.1mA Min. 2.2 -0.5** 2.4 Typ. Max. 10 10 50 1 100 10 VCC+0.5* 0.6 0.4 Unit A A A mA mA A V V V V
Measurement conditions Input signal level Input timing reference level Output load Output timing reference level
0V/3V 0.8V/2.0V 100pF 0.8V/2.0V 2.08V
800ohms Output 100pF
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MR27V6452D
TIMING CHART NORMAL MODE READ CYCLE
tC ADDRESS tCE CE tOH
tOE OE tACC DOUT Hi-Z
tCHZ
tOHZ Valid Data Hi-Z
PAGE MODE READ CYCLE tC A3 - A21 tPC A0 - A2 (Word mode) A-1 - A2 (Byte mode) tCE CE tCHZ tOE OE tACC DOUT Hi-Z Hi-Z tPAC tPAC tOHZ tOH tPC
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MR27V6452D
ELECTRICAL CHARACTERISTICS (Programming operation)
DC Characteristics (Ta=25C5C) Parameter Input leakage current VPP power supply current (Program) VCC power supply current Input "H" level Input "L" level Output "H" level Output "L" level Program voltage VCC power supply voltage Voltage is relative to Vss Symbol ILI IPP2 ICC VIH VIL VOH VOL VPP VCC Condition VI=VCC+0.5V CE=VIL IOH=-400A IOL=2.1mA Min. 3.0 -0.5 2.4 9.5 3.9 Typ. 9.75 4.0 Max. 10 50 80 VCC+0.5 0.8 0.45 10.0 4.1 Unit A mA mA V V V V V V
AC Characteristics (Vcc=4.0V0.1V,Vpp=9.75V0.25V,Ta=25C5C) Parameter Address set-up time OE set-up time Data set-up time Address hold time Data hold time Output float delay from OE VPP voltage set-up time Program pulse width Data valid from OE Address hold from OE high Symbol TAS TOES TDS TAH TDH TOHZ TVS TPW TOE TAHO Condition Min. 100 2 100 2 100 0 2 9 0 Typ. 10 Max. 100 11 100 Unit ns s ns s ns ns s s ns ns
Pin Check Function Pin Check Function is to check contact between each device-pin and each socket-lead with EPROM programmer. Setting up address as the following condition call the preprogrammed codes on device outputs. (Vcc=3.3V0.3V,CE=OE=VIL,BYTE/Vpp=VIH,Ta=25C5C) A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 DATA 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 VH* VH* 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 0 1 FF00 00FF FFFF * :VH=8V0.25V 7/10
Other conditions
MR27V6452D
Consecutive Programming Waveforms
A0 - A21 tAS tPW CE tAH
High
OE tDS D0 - D15 tVS BYTE/VPP tDH
Din
Din
Consecutive Program Verify Waveforms
A0 - A21
High
CE tACC OE tOE D0 - D15 tOHZ tAHO
Dout 9.75V
Dout
BYTE/VPP
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MR27V6452D
Program and Program Verify Cycle Waveforms
A0 - A21 tAS tPW CE tOES OE tOHZ D0 - D15 tDS tDH tOE tOHZ tAHO
Din 9.75V
Dout
BYTE/VPP
PIN Capacitance (VCC=3.3V, Ta=25C, f=1MHz) Parameter Input BYTE/VPP Output Symbol CIN1 CIN2 COUT Condition VI=0V VO=0V Min. Typ. Max. 8 120 10 Unit pF
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MR27V6452D
Programming / Verify Flow Chart Programming Verify Start Start NO Pin Check NO Bad insertion Pin Check OK Address = First location VCC=3.0V VPP=3.0V NG OK Address = First location Bad insertion
VCC=4.0V
VPP=9.75V
Verify (One Byte) PASS VCC=3.6V VPP=3.6V
Program 10s
NO Increment Address Last Address ? YES Address = First location Verify (One Byte) PASS Device Passed X=0 Device Failed NG
NG Verify (One Byte) PASS NO Increment Address Last Address ? YES VCC=3.0V VPP=3.0V YES X=2? NO Program 10s X=X+1
NG Verify (One Byte) PASS Device Passed Device Failed 10/10

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