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參數資料

型號：	T221160A
廠商：	TM Technology, Inc.
英文描述：	64K x 16 DYNAMIC RAM FAST PAGE MODE
中文描述：	64K的× 16動態RAM快速頁面模式
文件頁數：	1/14頁
文件大小：	134K
代理商：	T221160A

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DRAM

T221160A

Taiwan Memory Technology, Inc. reserves the right

P. 1

to change products or specifications without notice.

Publication Date: FEB. 2002

Revision:A

64K x 16 DYNAMIC RAM

FAST PAGE MODE

FEATURES

High speed access time : 25/30/35/40 ns

Industry-standard x 16 pinouts and timing

functions.

Single 5V (

10%) power supply.

All device pins are TTL- compatible.

256-cycle refresh in 4ms.

Refresh modes: RAS only, CAS BEFORE

RAS (CBR) and HIDDEN.

Conventional FAST PAGE MODE access cycle.

BYTE WRITE and BYTE READ access cycles.

PART NUMBER EXAMPLES

PART NUMBER

ACCESS TIME

PACKAGE

T221160A-30J

30ns

SOJ

T221160A-30S

30ns

35ns

TSOP-II

SOJ

TSOP-II

T221160A-35J

T221160A-35S

GENERAL DESCRIPTION

The T221160A is a randomly accessed solid state

memory containing 1,048,551 bits organized in a

x16 configuration. The T221160A has both BYTE

WRITE and WORD WRITE access cycles via two

CAS pins. It offers Fast Page mode operation

The T221160A CAS function and timing are

determined by the first CAS to transition low and

by the last to transition back high. Use only one of

the two CAS and leave the other staying high

during WRITE will result in a BYTE WRITE.

CASL transiting low in a WRITE cycle will write

data into the lower byte (IO1~IO8), and CASH

transiting low will write data into the upper byte

(IO9~16).

PIN ASSIGNMENT ( Top View )

I/01

Vcc

I/02

I/03

I/04

I/05

Vcc

I/06

I/07

I/08

Vcc

RAS

I/016

Vss

I/015

I/014

I/013

I/012

Vss

I/011

I/010

I/09

VSS

CASL

CASH

SOJ