TM124BBK32S

1 048 576 x 32 位 DRAM 模块

TM124BBK32

The TM124BBK32 is a dynamic random-access memory DRAM organized as four times 1048576 × 8 in a 72-pin leadless single in-line memory module SIMM. The SIMM is composed of eight TMS44400, 1048576 × 4-bit DRAMs, each in 20/26-lead plastic SOJ packages, mounted on a substrate together with decoupling capacitors. Each TMS44400 is described in the TMS44400 data sheet.

The TM124BBK32 is available in the single-sided BK leadless module for use with sockets.

The TM124BBK32 features RAS\ access times of 60 ns, 70 ns and 80 ns. This device is rated for operation from 0°C to 70°C

### TM248CBK32

The TM248CBK32 is a dynamic random-access memory organized as four times 2097152 × 8 in a 72-pin leadless SIMM. The SIMM is composed of sixteen TMS44400, 1048576 × 4-bit dynamic RAMs, each in 20/26-lead plastic SOJ packages SOJs, mounted on a substrate together with decoupling capacitors. Each TMS44400 is described in the TMS44400 data sheet.

The TM248CBK32 is available in the double-sided BK leadless module for use with sockets.

The TM248CBK32 features RAS\ access times of 60 ns, 70 ns and 80 ns. This device is rated for operation from 0°C to 70°C

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Organization

TM124BBK32...1048576 × 32

TM248CBK32...2 097 152 × 32

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Single 5-V Power Supply ±10 % Tolerance

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72-pin Single In-Line Memory Module SIMM for Use With Sockets

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TM124BBK32-Utilizes Eight 4-Megabit DRAMs in Plastic Small-Outline J-Lead SOJ Packages

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TM248CBK32-Utilizes Sixteen 4-Megabit DRAMs in Plastic Small-Outline J-Lead SOJ Packages

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Distributed Refresh Period

16 ms 1024 Cycles

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All Inputs, Outputs, Clocks Fully TTL Compatible

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3-State Output

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Common **CAS**\ Control for Eight Common Data-In and Data-Out Lines, In Four Blocks

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Presence Detect

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Performance Ranges:

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Low Power Dissipation

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Operating Free-Air-Temperature Range

0°C to 70°C

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Gold-Tabbed Versions Available:****

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TM124BBK32

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TM248CBK32

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Tin-Lead Solder Tabbed Versions Available:

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TM248CBK32S