TM124FBK32U

1 048 576 x 32 位动态 RAM 模块

TM124FBK32F

The TM124FBK32F is a 4M-byte DRAM organized as four times 1048576 × 8 in a 72-pin SIMM. The SIMM is composed of two TMS418169DZ 1048576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418169DZ is described in the TMS418169 data sheet literature number SMKS886. The TM124FBK32F SIMM is available in the single-sided BK-leadless module for use with sockets.

### TM248GBK32F

The TM248GBK32F is an 8M-byte DRAM organized as four times 2097152×8 in a 72-pin SIMM. The SIMM is composed of four TMS418169DZ 1048576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418169DZ is described in the TMS418169 data sheet literature number SMKS886. The TM248GBK32F SIMM is available in the double-sided BK-leadless module for use with sockets.

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Organization

TM124FBK32F...1048576 × 32

TM248GBK32F...2097152 × 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 Socket

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TM124FBK32F - Utilizes Two 16M-Bit Dynamic Random-Access Memories DRAMs in Plastic Small-Outline J-Lead SOJ Package

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TM248GBK32F - Utilizes Four 16M-Bit DRAMs in Plastic SOJ Package

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Long 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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Extended Data Out EDO Operation With

**CAS**\\-Before- **RAS**\ CBR, **RAS**\\-Only, Hidden Refresh, and Self Refresh

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Presence Detect

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JEDEC First Generation 72-Pin SIMM Pinout

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Performance Ranges: ACCESS ACCESS ACCESS EDO ME TIME TIME CYCLE t**RAC** t**AA** t**CAC** t**HPC** MAX MAX MAX MIN"124FBK32F-60 60 ns 30 ns 15 ns 25 ns"124FBK32F-70 70 ns 35 ns 18 ns 30 ns"124FBK32F-80 80 ns 40 ns 20 ns 35 ns"248GBK32F-60 60 ns 30 ns 15 ns 25 ns"248GBK32F-70 70 ns 35 ns 18 ns 30 ns"248GBK32F-80 80 ns 40 ns 20 ns 35 ns

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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:****

TM124FBK32F

TM248GBK32F

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Tin-Lead Solder-Tabbed Versions Available:

TM248GBK32U