DYNAMIC RAM. MSM5416258A Datasheet

MSM5416258A RAM. Datasheet pdf. Equivalent

Part MSM5416258A
Description DYNAMIC RAM
Feature E2L0047-28-Z2 www.DataSheet4U.com ¡ Semiconductor ¡ Semiconductor MSM5416258A DESCRIPTION This ver.
Manufacture OKI electronic
Datasheet
Download MSM5416258A Datasheet




MSM5416258A
E2L0047-28-Z2
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¡¡SemicondSucetormiconductor
This versiMonS: MD5e4c1. 61929588A
Previous version: Jan. 1998
MSM5416258A
262,144-Word ¥ 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE WITH EDO
DESCRIPTION
The MSM5416258A is a 262,144-word ¥ 16-bit dynamic RAM fabricated in Oki's CMOS silicon gate
technology. The MSM5416258A 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 MSM5416258A is available in a 44/40-pin plastic TSOP.
FEATURES
• 262,144-word ¥ 16-bit configuration
• Single 5.0 V power supply, ±0.5 V tolerance
• Input: TTL compatible
• Output: TTL compatible, 3-state
• Refresh: 512 cycles/8 ms
• Fast page mode with EDO, read modify write capability
• Byte wide control: 2 CAS control
CAS before RAS refresh, hidden refresh, RAS only refresh capability
• Package :
44/40-pin 400 mil plastic TSOP (Type II) (TSOPII44/40-P-400-0.80-K) (Product : MSM5416258A-xxTS-K)
xx indicates speed rank.
PRODUCT FAMILY
Family
MSM5416258A-40
MSM5416258A-45
Access Time (Max.)
tRAC tAA tCAC tOEA
40 ns 22 ns 10 ns 10 ns
45 ns 24 ns 12 ns 12 ns
Cycle Time (Min.)
tRC tHPC
80 ns 15 ns
90 ns 20 ns
Power Dissipation
(Max.)
825 mW
770 mW
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MSM5416258A
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PIN CONFIGURATION (TOP VIEW)
VCC 1
DQ0 2
DQ1 3
DQ2 4
DQ3 5
VCC 6
DQ4 7
DQ5 8
DQ6 9
DQ7 10
VSS* 13
NC 14
WE 15
RAS 16
NC 17
A0 18
A1 19
A2 20
A3 21
VCC 22
MSM5416258A
44 VSS
43 DQ15
42 DQ14
41 DQ13
40 DQ12
39 VSS
38 DQ11
37 DQ10
36 DQ9
35 DQ8
32 VSS*
31 LCAS
30 UCAS
29 OE
28 A8
27 A7
26 A6
25 A5
24 A4
23 VSS
44/40-Pin Plastic TSOP (II)
(K Type)
Pin Name
A0 - A8
RAS
LCAS, UCAS
DQ0 - DQ15
WE
OE
VCC
VSS
NC
VSS*
Function
Address Input
Row Address Strobe
Column Address Strobe
Data - Input / Data - Output
Write Enable
Output Enable
Power Supply (5.0 V)
Ground (0 V)
No Connection
Ground (0 V)*
Note:
*:
The same power supply voltage must be provided to every VCC pin, and the same GND
voltage level must be provided to every VSS pin.
For improved signal integrity, it is recommended to connect the VSS* pins, pin 13 and pin 32,
to GND: the pins are electrically connected to internal GND.
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