MB81F643242C-70 datasheet(5/56 Pages) FUJITSU

Part #	MB81F643242C-70

Description	4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM

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Manufacturer	FUJITSU [Fujitsu Component Limited.]

Direct Link	http://edevice.fujitsu.com/fmd/en/index.html

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MB81F643242C-60/-70/-10 Advanced Info (AE0.1E)

s BLOCK DIAGRAM

Fig. 1 – MB81F643242C BLOCK DIAGRAM

BANK-1

VCC

VSS

CLK

CKE

A0 to A9,

A10/AP

DQ0

to

DQ31

COMMAND

DECODER

CLOCK

BUFFER

ADDRESS

BUFFER/

REGISTER

I/O DATA

BUFFER/

REGISTER

MODE

REGISTER

RAS

CAS

WE

DRAM

CORE

(2,048

× 256 × 32)

COL.

ADDR.

RAS

CAS

WE

CS

BANK-0

I/O

ROW

ADDR.

To each block

CONTROL

SIGNAL

LATCH

VCCQ

BANK-2

BANK-3

BA1

BA0

COLUMN

ADDRESS

COUNTER

DQM0

to

DQM3

VSSQ

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MB81F643242C-70 Datasheet(PDF) 5 Page - Fujitsu Component Limited.

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