MD51V64400 OKI electronic, MD51V64400 Datasheet

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MD51V64400

Manufacturer Part Number
MD51V64400
Description
DYNAMIC RAM
Manufacturer
OKI electronic
Datasheet
www.DataSheet4U.com
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 Summary of contents

Page 1

... 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 • 16,777,216-word ¥ 4-bit configuration • ...

Page 2

... Address Input A11R, A12R 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

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

Page 4

... Symbol Min –0.3 IL Symbol Typ. C — IN1 C — IN2 C — I/O MD51V64400 Rating Unit –0 °C –55 to 150 °C (Ta = 0°C to 70°C) Typ. Max. Unit 3.3 3 — 0.3 CC — 0 3.3 V ±0 25° MHz) CC Max ...

Page 5

... IH CAS = V , — enable RAS cycling, — CAS before RAS RAS = CAS cycling, — Min. PC for output open condition. CC MD51V64400 (V = 3.3 V ±0 0°C to 70°C) CC MD51V64400 -60 Unit Min. Max 0 – – 100 — ...

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

... They are RWD AWD CPWD (Min.) and t t (Min.), then the cycle is a read modify write CPWD CPWD MD51V64400 and 2.0 V and (Max.) can be met. RAC is greater than the specified RCD ...

Page 9

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

Page 10

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

Page 11

... CAH Column Column t t RAD CWL t WCS WCH WCH WCS Valid Valid Data-in Data-in MD51V64400 t t RHCP t t RSH CAS CAS t RAL t t ASC CAH Column  t t RCH RCS RRH t CPA ...

Page 12

... OEA t OED t OEZ t t CAC CAC  Out CLZ CLZ t t RAS t ASR RAH Row t OFF Note: WE "H" or "L" MD51V64400 t t PRWC RSH CAS CAS t t ASC RAL t CAH Column t RCS t t CPWD RWL t t CWD ...

Page 13

... ASC t t CAH RAH Column t t RRH RCS t RAL ROH t t WRP OEA t CAC t CLZ t RAC Valid Data-out MD51V64400 RPC   Open "H" or "L" RAS RP t CHR t WRH t OFF t OEZ t WRP "H" or "L" ...

Page 14

... IL V – – – – RAS t t RSH RCD RAD t ASC t t CAH t RAH RAL     Column t WCS t WCH WRP Valid Data-in MD51V64400 RAS RP t CHR t WRH "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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