TM124FBK32, TM124FBK32S 1048576 BY 32-BIT

TM248GBK32, TM248GBK32S 2097152 BY 32-BIT

DYNAMIC RAM MODULES

SMMS664A – DECEMBER 1995 – REVISED JUNE 1996

1

POST OFFICE BOX 1443

TM124FBK32 ...1048 576

× 32

TM248GBK32 ...2 097 152

× 32

(SIMM) for Use With Sockets

RAMs (DRAMs) in Plastic Small-Outline

J-Lead (SOJ) Packages

DRAMs in Plastic SOJ Packages

16 ms (1 024 Cycles)

Compatible

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

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

Hidden Refresh

Pinout

ACCESS

ACCESS ACCESS EDO

TIME

TIME

TIME CYCLE

tRAC

tAA

tCAC

tHPC

(MAX)

(MAX)

(MIN)

(MIN)

’124FBK32-60

60 ns

30 ns

15 ns

25 ns

’124FBK32-70

70 ns

35 ns

18 ns

30 ns

’124FBK32-80

80 ns

40 ns

20 ns

35 ns

’248GBK32-60

60 ns

30 ns

15 ns

25 ns

’248GBK32-70

70 ns

35 ns

18 ns

30 ns

’248GBK32-80

80 ns

40 ns

20 ns

35 ns

Range...0

°C to 70°C

– TM124FBK32

– TM248GBK32

Available:

– TM124FBK32S

– TM248GBK32S

description

TM124FBK32

The TM124FBK32 is a 4M-byte DRAM organized as four times 1 048 576

× 8 in a 72-pin leadless SIMM. The

SIMM is composed of eight TMS44409, 1 048 576

× 4-bit DRAMs, each in a 20/26-lead plastic SOJ package,

mounted on a substrate together with decoupling capacitors. Each TMS44409 is described in the TMS44409

data sheet. The TM124FBK32 is available in the single-sided BK leadless module for use with sockets.

TM248GBK32

The TM248GBK32 is a 8M-byte DRAM organized as four times 2 097 152

× 8 in a 72-pin leadless SIMM. The

SIMM is composed of sixteen TMS44409, 1 048 576

× 4-bit DRAMs, each in a 20/26-lead plastic SOJ package,

mounted on a substrate together with decoupling capacitors. Each TMS44409 is described in the TMS44409

data sheet. The TM248GBK32 is available in the double-sided BK leadless module for use with sockets.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright

© 1996, Texas Instruments Incorporated

† 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.