Datasheet > TM124GU8A

TM124GU8A

更新时间： 2024-11-09 11:58:39

品牌	Logo	应用领域
德州仪器 - TI		存储
页数	文件大小	规格书
9页	91K
描述
1 048 576-WORD BY 8-BIT DYNAMIC RANDOM-ACCESS MEMORY MODULE

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TM124GU8A 数据手册

TM124GU8A

1 048 576-WORD BY 8-BIT DYNAMIC RANDOM-ACCESS MEMORY MODULE

SMMS181A–JANUARY 1991–REVISED JANUARY 1993

• Organization . . . 1 048 576 × 8

• Single 5-V Power Supply (±10% Tolerance)

SINGLE IN-LINE

MODULE

(TOP VIEW)

• 30-Pin Single In-Line Memory Module

(SIMM)

• TM124GU8A Utilizes Two 4-Megabit

Dynamic RAMs in Plastic Small-Outline

J-Lead Packages (SOJs)

CAS

DQ1

• Long Refresh Period

. . . 16 ms (1024 Cycles)

DQ2

• All Inputs, Outputs, Clocks Fully TTL

Compatible

• 3-State Outputs

DQ3 10

A4 11

• Performance Ranges:

A5 12

ACCESS

TIME

ACCESS

TIME

READ

DQ4 13

A6 14

RAC

)

WRITE

CYCLE

(MIN)

A7 15

DQ5 16

A8 17

A9 18

NC 19

DQ6 20

(MAX)

60 ns

70 ns

80 ns

(MAX)

30 ns

35 ns

40 ns

TM124GU8A-60

TM124GU8A-70

TM124GU8A-80

110 ns

130 ns

150 ns

DQ7 23

NC 24

DQ8 25

NC 26

RAS 27

NC 28

• Low Power Dissipation

• Operating Free-Air Temperature Range

0°C to 70°C

description

NC 29

The TM124GU8A is a dynamic random-access

memory module organized as 1 048 576 × 8 in a

30-pin leadless single in-line memory module

(SIMM).

PIN NOMENCLATURE

The TM124GU8A is composed of two TMS44400,

1 048 576 × 4 bit dynamic RAMs in 20/26-lead

plastic small-outline J-lead packages (SOJs).

A0–A9

CAS

Address Inputs

Column-Address Strobe

DQ1–DQ8

Data In/Data Out

No Internal Connect

Row-Address Strobe

5-V Supply

The TM124GU8A is mounted on a substrate with

decoupling capacitors. The onboard capacitors

eliminate the need for bypassing on the

motherboard and offer superior performance over

equivalent leaded capacitors due to reduced lead

inductance. With the elimination of bypass

capacitors on the motherboard, reduced PC

board size, and fewer plated through-holes, a cost

savings can be realized.

RAS

Ground

The TM124GU8A features RAS access times of 60 ns, 70 ns, and 80 ns. All inputs and outputs, including clocks,

are compatible with Series 74 TTL. All address lines and data in are latched on-chip to simplify system design.

Data out is unlatched to allow greater system flexibility.

The TM124GU8A is characterized for operation from 0°C to 70°C.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001

12 3 4 5 6 7...9

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与TM124GU8A相关器件

型号	品牌	获取价格	描述	数据表
TM124GU8A-10	TI	获取价格	1MX8 FAST PAGE DRAM MODULE, 100ns, SMA30, SIP-30
TM124GU8A-6	TI	获取价格	1MX8 FAST PAGE DRAM MODULE, 60ns, SMA30, SIP-30
TM124GU8A-60	TI	获取价格	1 048 576-WORD BY 8-BIT DYNAMIC RANDOM-ACCESS MEMORY MODULE
TM124GU8A-70	TI	获取价格	1MX8 MULTI DEVICE DRAM MODULE, 70ns, SMA30, SIMM-30
TM124GU8A-80	TI	获取价格	1MX8 MULTI DEVICE DRAM MODULE, 80ns, SMA30, SIMM-30
TM124MBJ36F	TI	获取价格	DYNAMIC RAM MODULE
TM124MBJ36F-60	TI	获取价格	1MX36 FAST PAGE DRAM MODULE, 60ns, SMA72, SIMM-72
TM124MBJ36F-70	TI	获取价格	1MX36 FAST PAGE DRAM MODULE, 70ns, SMA72, SIMM-72
TM124MBJ36F-80	TI	获取价格	1MX36 FAST PAGE DRAM MODULE, 80ns, SMA72, SIMM-72
TM124MBJ36U	TI	获取价格	DYNAMIC RAM MODULE

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