TM124BBK32F, TM124BBK32U 1048576 BY 32-BIT DYNAMIC RAM MODULE TM248CBK32F, TM248CBK32U 2097152 BY 32-BIT DYNAMIC RAM MODULE

SMMS649A - DECEMBER 1994 - REVISED JUNE 1995

features

Organization TM124BBK32F...1048576 × 32 TM248CBK32F...2097152 × 32
Single 5-V Power Supply (±10% Tolerance)
72-Pin Single-In-Line Memory Module (SIMM) for Use With Socket
TM124BBK32F - Utilizes Two 16-Megabit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages
TM248CBK32F - Utilizes Four 16-Megabit DRAMs in Plastic Small-Outline J-Lead (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
Enhanced Page-Mode Operation With CAS\-Before-RAS\ (CBR), RAS\-Only, and Hidden Refresh
Presence Detect
Performance Ranges: ACCESS ACCESS ACCESS READ TIME TIME TIME OR t_RAC t_AA t_CAC WRITE CYCLE (MAX) (MAX) (MAX) (MIN)'124BBK32F-60 60 ns 30 ns 15 ns 110 ns'124BBK32F-70 70 ns 35 ns 18 ns 130 ns'124BBK32F-80 80 ns 40 ns 20 ns 150 ns'248CBK32F-60 60 ns 30 ns 15 ns 110 ns'248CBK32F-70 70 ns 35 ns 18 ns 130 ns'248CBK32F-80 80 ns 40 ns 20 ns 150 ns
Low Power Dissipation
Operating Free-Air Temperature Range 0°C to 70°C
Gold-Tabbed Versions Available:
- TM124BBK32F
- TM248CBK32F
Tin-Lead (Solder) Tabbed Versions Available:
- TM124BBK32U
- TM248CBK32U

description

TM124BBK32F

The TM124BBK32F is a 32-megabit dynamic random-access memory (DRAM) organized as four times 1048576 × 8 in a 72-pin SIMM. The SIMM is composed of two TMS418160DZ, 1048576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418160DZ is described in the TMS418160 data sheet. The TM124BBK32F SIMM is available in the single-sided BK-leadless module for use with sockets.

TM248CBK32F

The TM248CBK32F is a 64-megabit DRAM organized as four times 2097152×8 in a 72-pin SIMM. The SIMM is composed of four TMS418160DZ, 1048576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418160DZ is described in the TMS418160 data sheet. The TM248CBK32F SIMM is available in the double-sided BK-leadless module for use with sockets.

Title: 1048 576 BY 32-BIT AND 2097 152 BY 32-BIT DRAM MODULES
Product Family: SIMM
Device Functionality: 8M(2MX32),PAGE MODE, SIMM
Orderable Devices: TM124BBK32F-60, TM124BBK32F-70, TM124BBK32U-60, TM124BBK32U-70, TM248CBK32F-60, TM248CBK32F-70, TM248CBK32U-60, TM248CBK32U-70

View the complete PDF datasheet: smms649a.pdf (136 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:TM124BBK32F, TM124BBK32U, TM248CBK32F, TM248CBK32U

Go to the Engineering Design Center to locate information on other TI Semiconductor devices.