MSM514256CL-70RS View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM514256CL-70RS

262,144-Word x 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE

Oki Electric Industry 

¡ Semiconductor

MSM514256C/CL

BLOCK DIAGRAM

RAS

Timing

Generator

CAS

Timing

Generator

Column

9 Address

Buffers

A0 - A8

Internal

Address

Counter

Column

9 Decoders

Write

Clock

Generator

WE

OE

Refresh

Control Clock

4 Output 4

Buffers

Sense 4

I/O

4

Amplifiers

Selector

4 DQ1 - DQ4

4 Input 4

Buffers

Row

9 Address 9 Row

Buffers De-

coders

Word

Drivers

Memory

Cells

VCC

On Chip

VBB Generator

VSS

3/17

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