IS41C44052C データシートの表示（PDF） - Integrated Silicon Solution

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IS41C44052C

4Mx4 16Mb DRAM WITH FAST PAGE MODE

Integrated Silicon Solution 

IS41C44052C

IS41LV44052C

FUNCTIONAL BLOCK DIAGRAM

OE

WE

CAS

CAS

CONTROL

LOGIC

CAS

WE

CONTROL

LOGICS

WE

OE

CONTROL

LOGIC

RAS

RAS

CLOCK

GENERATOR

REFRESH

COUNTER

DATA I/O BUS

COLUMN DECODERS

SENSE AMPLIFIERS

A0-A10

ADDRESS

BUFFERS

MEMORY ARRAY

4,194,304 x 4

I/O0-I/O3

TRUTH TABLE

Function

Standby

Read

Write: Word (Early Write)

Read-Write

Hidden Refresh Read 

Write(1)

RAS-Only Refresh

CBR Refresh

Note:

1. EARLY WRITE only.

RAS

H

L

L

L

L→H→L

L→H→L

H→L

H→L

CAS

H

L

L

L

L

L

H

L

WE

X

H

L

H→L

H

L

X

X

OE

X

L

X

L→H

L

X

X

X

Address tr/tc

X

ROW/COL

ROW/COL

ROW/COL

ROW/COL

ROW/COL

ROW/NA

X

I/O

High-Z

Dout

Din

Dout, Din

Dout

Dout

High-Z

High-Z

2

Integrated Silicon Solution, Inc. — 1-800-379-4774

Rev.  00B

08/09/2010

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