TM248GBK32

Features:

 Organization
   TM124FBK32 . . . 1 048 576 * 32
   TM248GBK32 . . . 2 097 152 * 32
 Single 5-V Power Supply
 72-pin Single In-Line Memory Module (SIMM) for Use With Sockets
 TM124FBK32 Utilizes Eight 4M-Bit Dynamic RAMs (DRAMs) in Plastic Small-Outline J-Lead (SOJ) Packages
 TM248GBK32 Utilizes Sixteen 4M-Bit DRAMs in Plastic SOJ Packages
 Long Refresh Period 16 ms (1024 Cycles)
 All Inputs, Outputs, Clocks Fully TTL Compatible
 3-State Output
 Common CAS Control for Eight Common Data-In and Data-Out Lines, In Four Blocks
 Extended Data-Out (EDO) Operation With CAS-Before-RAS (CBR), RAS-Only, and Hidden Refresh
 JEDEC First Generation 72-Pin SIMM Pinout
 Presence Detect
 Performance Ranges:
 Low Power Dissipation
 Operating Free-Air Temperature Range . . . 0°C to 70°C
 Gold-Tabbed Versions Available:†
   TM124FBK32
   TM248GBK32
 Tin-Lead- (Solder-) Tabbed Versions Available:
  TM124FBK32S
  TM248GBK32S



Pinout




Specifications

Voltage range on any pin (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 1 V to 7 V
Voltage range on V_CC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 V to 7 V
Short circuit output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Power dissipation: TM124FBK32, TM124FBK32S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 W
                              TM248GBK32, TM248GBK32S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 16 W
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0°C to 70°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C


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.