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Block diagram – Rainbow Electronics W9864G2GH User Manual

Page 6

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W9864G2GH

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6. BLOCK

DIAGRAM

DQ0

DQ31

DQM0~3

CLK

CKE

A10

CLOCK

BUFFER

COMMAND

DECODER

ADDRESS

BUFFER

REFRESH

COUNTER

COLUMN

COUNTER

CONTROL

SIGNAL

GENERATOR

MODE
REGISTER

COLUMN DECODER

SENSE AMPLIFIER

CELL ARRAY

BANK #2

COLUMN DECODER

SENSE AMPLIFIER

CELL ARRAY

BANK #0

COLUMN DECODER

SENSE AMPLIFIER

CELL ARRAY

BANK #3

DATA CONTROL

CIRCUIT

DQ
BUFFER

COLUMN DECODER

SENSE AMPLIFIER

CELL ARRAY

BANK #1

NOTE:

The cell array configuration is 2048 * 256 * 32

ROW DECODER

ROW DECODER

ROW DECODER

ROW DECODER

A0

A9

BS0
BS1

CS

RAS

CAS

WE