TM124MBK36C, TM124MBK36S 1048576 BY 36-BIT

TM248NBK36C, TM248NBK36S 2097152 BY 36-BIT

DYNAMIC RAM MODULE

SMMS138B – MARCH 1992 – REVISED JUNE 1995

1

POST OFFICE BOX 1443

TM124MBK36C ...1 048 576

× 36

TM248NBK36C ...2 097 152

× 36

Module (SIMM)

DRAMs in Plastic Small-Outline J-Lead

(SOJ) Packages and Two 4-Megabit

Quad-CAS DRAMs in Plastic SOJ Packages

DRAMs in Plastic SOJ Packages and Four

4-Megabit Quad-CAS DRAMs in Plastic SOJ

Packages

16 ms (1024 Cycles)

Compatible

Data-In and Data-Out Lines, in Four Blocks

CAS-Before-RAS ( CBR ), RAS-Only, and

Hidden Refresh

ACCESS

ACCESS ACCESS READ

TIME

TIME

TIME

OR

tRAC

tAA

tCAC

WRITE

CYCLE

(MAX)

(MAX)

(MAX)

(MIN)

′124MBK36C-60 60 ns

30 ns

15 ns

110 ns

′124MBK36C-70 70 ns

35 ns

18 ns

130 ns

′124MBK36C-80 80 ns

40 ns

20 ns

150 ns

′248NBK36C-60 60 ns

30 ns

15 ns

110 ns

′248NBK36C-70 70 ns

35 ns

18 ns

130 ns

′248NBK36C-80 80 ns

40 ns

20 ns

150 ns

0

°C to 70°C

– TM124MBK36C

– TM248NBK36C

– TM124MBK36S

– TM248NBK36S

description

TM124MBK36C

The TM124MBK36C is a dynamic random-access memory (DRAM) organized as four times 1 048 576

× 9 (bit

9 is generally used for parity) in a 72-pin leadless single in-line memory module (SIMM). The SIMM is composed

of eight TMS44400DJ, 1 048 576

× 4-bit DRAMs, each in 20/26-lead plastic small-outline J-lead packages

(SOJs), and two TMS44460DJ, 1 048 576

× 4-bit Quad-CAS DRAMs, in 24/26-lead plastic SOJs mounted on

a substrate with decoupling capacitors. Each TMS44400DJ and TMS44460DJ is described in the TMS44400

and TMS44460 data sheets, respectively.

The TM124MBK36C is available in the single-sided BK leadless module for use with sockets.

The TM124MBK36C features RAS access times of 60 ns, 70 ns, and 80 ns. This device is characterized for

operation from 0

°C to 70°C.

† Part numbers in this data sheet are for the gold-tabbed version; the information applies to both gold-tabbed and solder-tabbed versions.

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.

Copyright

© 1995, Texas Instruments Incorporated