AS4SD4M16 datasheet(4/50 Pages) AUSTIN | 4 Meg x 16 SDRAM Synchronous DRAM Memory

Part Name

Description

AS4SD4M16

4 Meg x 16 SDRAM Synchronous DRAM Memory ( 50 Page)

AUSTIN

4 page

SDRAM

AS4SD4M16

Austin Semiconductor, Inc.

AS4SD4M16

Rev. 1.5 10/01

Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.

CKE

CLK

CS\

WE\

CAS\

RAS\

DQML, DQMH

DQ0-DQ15

A0,

A10,

ROW

ADDRESS

MUX

ADDRESS

REFRESH

COUNTER

CONTROL

LOGIC

MODE REGISTER

DATA

OUTPUT

DATA

INPUT

BANK0

ROW-

ADDRESS

LATCH &

DECODER

BANK 0

MEMORY

ARRAY

(4,096 X 256 X 16)

SENSE AMPLIFIERS

4096

I/O GATING

DQM MASK LOGIC

READ DATA LATCH

WRITE DRIVERS

COLUMN

DECODER

256

(X16)

BANK

CONTROL

LOGIC

COLUMN-

ADDRESS

COUNTER/

LATCH

BANK1

BANK2 BANK3

FUNCTIONAL BLOCK DIAGRAM

4 Meg x 16 SDRAM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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