T224160B Ver la hoja de datos (PDF) - Taiwan Memory Technology

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T224160B

256K x 16 DYNAMIC RAM FAST PAGE MODE

Taiwan Memory Technology 

tm TE

CH

CBR REFRESH CYCLE

(A0-A8 ; OE =DON‘T CARE)

T224160B

RA S

VVII

H

L

C A SH, CA S L

VVII

H

L

I /O

WE VIH

VIL

tR P

tR P C

tC P N

tC S R

tR A S

t C HR

tRP

tR A S

t RP C

tC S R

tC H R

O P EN

RAS

V

V

IH

IL

CAS

V

V

IH

IL

A DDR

V

V

IH

IL

I /O

V

V

O

O

H

L

OE

V

V

IH

IL

HIDDEN REFRESH CYCLE

( WE =HIGH ; OE =LOW)

(R E A D)

tRA S

tR P

(R E F RE S H)

tRA S

tC RP

tR CD

t RSH

tCH R

tA S R

tAR

t RAD

tR AH

tAS C

tR AL

tC A H

R OW

C OL U MN

tAA

tR AC

tC AC

tC L Z

OPEN

t O AC

tO RD

V A L ID D A T A

N O TE1

tO FF 1

tO F F 2

OPEN

Note: 1. tOFF1 is referenced from the rising edge of RAS or CAS , whichever occurs last.

Taiwan Memory Technology, Inc. reserves the right P. 12

to change products or specifications without notice.

Publication Date: MAR. 2001

Revision:B

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