TM124MBK36B, TM124MBK36R 1048576 BY 36-BIT TM248NBK36B, TM248NBK36R 2097152 BY 36-BIT DYNAMIC RAM MODULE

SMMS137E - JANUARY 1991 - REVISEDJUNE 1995

features

Organization TM124MBK36B...1048576 × 36 TM248NBK36B...2097152 × 36
Single 5-V Power Supply (±10% Tolerance)
72-pin Leadless Single In-Line Memory Module (SIMM) for Use With Sockets
TM124MBK36B-Utilizes Eight 4-Megabit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages and One 4-Megabit Quad-CAS\ DRAM in a Plastic Small-Outline J-Lead (SOJ) Package
TM248NBK36B-Utilizes Sixteen 4-Megabit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages and Two 4-Megabit Quad-CAS\ 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 Nine 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)'124MBK36B-60 60 ns 30 ns 15 ns 110 ns'124MBK36B-70 70 ns 35 ns 18 ns 130 ns'124MBK36B-80 80 ns 40 ns 20 ns 150 ns'248NBK36B-60 60 ns 30 ns 15 ns 110 ns'248NBK36B-70 70 ns 35 ns 18 ns 130 ns'248NBK36B-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:
- TM124MBK36B
- TM248NBK36B
Tin-Lead (Solder) Tabbed Versions Available:
- TM124MBK36R
- TM248NBK36R
  Part numbers in this data sheet are for the gold-tabbed version; the information applies to both gold-tabbed and solder-tabbed versions.

description

TM124MBK36B

The TM124MBK36B is a dynamic random-access memory (DRAM) organized as four times 1048576 × 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, 1048576 × 4-bit DRAMs, each in 20/26-lead plastic small-outline J-lead packages (SOJs), and one TMS44460DJ, 1048576 × 4-bit Quad-CAS\ DRAM in a 24/26-lead plastic small-outline J-lead package (SOJ), mounted on a substrate with decoupling capacitors. Each TMS44400DJ and TMS44460DJ is described in the TMS44400 or TMS44460 data sheet, respectively.

The TM124MBK36B is available in the single-sided BK leadless module for use with sockets.

The TM124MBK36B features RAS\ access times of 60 ns, 70 ns, and 80 ns. This device is rated for operation from 0°C to 70°C.

TM248NBK36B

The TM248NBK36B is a DRAM organized as four times 2097152 × 9 (bit 9 is generally used for parity) in a 72-pin leadless SIMM. The SIMM is composed of sixteen TMS44400DJ, 1048576 × 4-bit DRAMs, each in 20/26-lead plastic small-outline J-lead packages (SOJs), and two TMS44460DJ, 1048576 × 4-bit Quad-CAS\ DRAMs, each in a 24/26-lead plastic small-outline J-lead package (SOJ), mounted on a substrate with decoupling capacitors. Each TMS44400DJ and TMS44460DJ is described in the TMS44400 and TMS44460 data sheet, respectively.

Title: 1 048 576, 2 097 152 BY 36-BIT DRAM MODULE
Product Family: SIMM
Device Functionality: 8M(2MX36), SIMM
Orderable Devices: TM124MBK36B-70, TM124MBK36R-70, TM248NBK36B-70, TM248NBK36R-70

View the complete PDF datasheet: smms137e.pdf (163 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:TM124MBK36B, TM124MBK36R, TM248NBK36B, TM248NBK36R

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