MD51V64400-50 OKI [OKI electronic componets], MD51V64400-50 Datasheet

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MD51V64400-50

Manufacturer Part Number
MD51V64400-50
Description
16,777,216-Word X 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
Manufacturer
OKI [OKI electronic componets]
Datasheet
E2G0135-18-11
¡ Semiconductor
¡ Semiconductor
MD51V64400
16,777,216-Word ¥ 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
• 16,777,216-word ¥ 4-bit configuration
• Single 3.3 V power supply, 0.3 V tolerance
• Input
• Output : LVTTL compatible, 3-state
• Refresh :
• Fast page mode, read modify write capability
• CAS before RAS refresh, hidden refresh, RAS-only refresh capability
• Package options:
DESCRIPTION
The MD51V64400 is a 16,777,216-word ¥ 4-bit dynamic RAM fabricated in Oki's silicon-gate CMOS
technology. The MD51V64400 achieves high integration, high-speed operation, and low-power
consumption because Oki manufactures the device in a quadruple-layer polysilicon/double-layer
metal CMOS process. The MD51V64400 is available in a 32-pin plastic SOJ or 32-pin plastic TSOP.
FEATURES
PRODUCT FAMILY
MD51V64400-50
MD51V64400-60
RAS-only refresh
CAS before RAS refresh, hidden refresh
32-pin 400 mil plastic SOJ
32-pin 400 mil plastic TSOP
Family
: LVTTL compatible, low input capacitance
50 ns
60 ns
t
RAC
Access Time (Max.)
25 ns
30 ns 15 ns 15 ns
t
AA
(SOJ32-P-400-1.27)
(TSOPII32-P-400-1.27-K) (Product : MD51V64400-xxTA)
13 ns
t
CAC
13 ns
t
OEA
Cycle Time
110 ns
(Min.)
90 ns
: 8192 cycles/64 ms
: 4096 cycles/64 ms
xx indicates speed rank.
(Product : MD51V64400-xxJA)
Operating (Max.)
504 mW
432 mW
Power Dissipation
This version: Mar. 1998
Standby (Max.)
MD51V64400
1.8 mW
1/15

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MD51V64400-50 Summary of contents

Page 1

... CAS before RAS refresh, hidden refresh, RAS-only refresh capability • Package options: 32-pin 400 mil plastic SOJ 32-pin 400 mil plastic TSOP PRODUCT FAMILY Access Time (Max.) Family t t RAC MD51V64400- MD51V64400- 8192 cycles/ 4096 cycles/64 ms (SOJ32-P-400-1.27) (Product : MD51V64400-xxJA) (TSOPII32-P-400-1 ...

Page 2

... A0 - A10, Address Input RAS Row Address Strobe CAS Column Address Strobe DQ1 - DQ4 Data Input/Data Output OE Output Enable WE Write Enable V Power Supply (3 Ground ( Connection pin. SS MD51V64400 DQ4 30 DQ3 CAS A12R 23 A11R ...

Page 3

... Refresh A0 - A10 Address Control Clock Counter 11 Row Row Address 13 Deco- Buffers A11R, A12R 2 ders Chip V Generator BB On Chip IV Generator I/O Controller Column Decoders 11 I/O Sense Amplifiers 4 Selector Memory Word Cells Drivers MD51V64400 Output 4 4 Buffers DQ1 - DQ4 Input 4 4 Buffers 4 3/15 ...

Page 4

... Symbol Min –0.3 IL Symbol Typ. C — IN1 C — IN2 C — I/O MD51V64400 Unit °C °C (Ta = 0°C to 70°C) Typ. Max. Unit 3.3 3 — 0 — 0 3.3 V ±0 25° MHz) CC Max ...

Page 5

... IH — 0.5 –0 — 100 IH = Min — — 140 , IL — Min. for output open condition. CC MD51V64400 (V = 3.3 V ±0 0°C to 70°C) CC MD51V64400 -60 Unit Note Min. Max. 2 0.4 V – – — — — 0.5 — ...

Page 6

... RAH t 0 — ASC t 7 — CAH t 25 — RAL t 0 — RCS t 0 — RCH t 0 — RRH MD51V64400 MD51V64400 -60 Unit Note Min. Max. 110 — ns 155 — — — ns — — — ...

Page 7

... AWD t 73 — RWD t 53 — CPWD t 5 — RPC t 10 — CSR t 10 — CHR 10 — WRP 10 — WRH MD51V64400 MD51V64400 -60 Unit Note Min. Max. 0 — — — — — — — — ...

Page 8

... OEZ , t and t are not restrictive operating parameters. They are AWD CPWD CWD t (Min.), then the cycle is a read modify write CPWD CPWD MD51V64400 and 0 (Max.) can be met. RAC is greater than the specified RCD . CAC (Max ...

Page 9

... RCD RSH t t CAS RAD t RAH t RAL t t ASC CAH Column t t WCS WCH t CWL RWL Valid Data-in MD51V64400 CRP  t RCH t RRH t OFF t OEZ Valid Data-out "H" or "L" CRP Open "H" or "L" 9/15 ...

Page 10

... RWC t RAS t CSH t t RCD RSH t CAS t t ASC CAH    Column t CWD t RWD AWD t t RCS OEA t OED t t CAC OEZ t RAC Valid Data-out t CLZ MD51V64400 CRP  t CWL t RWL OEH Valid Data-in "H" or "L" 10/15 ...

Page 11

... ASC ASC CAH CAH Column Column t t CWL CWL t WCS t t WCH WCH Valid Data-in Note "H" or "L" MD51V64400 RHCP t CRP t RSH CAS t RAL t t ASC CAH Column  RCH RCS RCH t t ...

Page 12

... OEA OEA t OED t OEZ t t CAC CAC  Out In Out t t CLZ CLZ RAS t RAH Open Note: WE "H" or "L" MD51V64400 RSH CRP CP CAS t t ASC RAL t CAH Column t RCS t t CPWD RWL t CWD t t CWL ...

Page 13

... Note: OE, Address = "H" or "L" RAS RP t RSH t CAH Column t RRH t RAL ROH WRP WRH OEA t CAC t CLZ t RAC Valid Data-out MD51V64400 RPC t WRP "H" or "L" RAS RP t CHR t OFF t OEZ "H" or "L" 13/15 ...

Page 14

... IL t WCS V – – – – – – RAS t RSH t CAH t RAL Column t WCH WRP WRH t DH Valid Data-in MD51V64400 RAS RP t CHR "H" or "L" 14/15 ...

Page 15

... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MD51V64400 (Unit : mm) Package material Epoxy resin ...

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