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UM2149 - 1K x 4 High Speed NMOS SRAM

General Description

The UMC UM2149 is a 4096-8it Static Random Access Memory organized 1024 words by 4 bits and is fabricated using UMC's new N-channel Silicon-Gate HMOS technology.

It is designed using fully static circuitry, therefore requiring no clock or refreshing to operate.

Key Features

  • 45 ns maximum address access.
  • Fully static operation: No clocks or strobes required.
  • Fast chip select access time: 20ns max.
  • Identical cycle and access times.
  • Single +5V supply.
  • Industry standard 2114 pinout.
  • Totally TTL compatible: All inputs and outputs.
  • Common data input and outputs Ii High density 18-pin package.
  • Three-state output General.

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Datasheet Details

Part number UM2149
Manufacturer UMC
File Size 167.39 KB
Description 1K x 4 High Speed NMOS SRAM
Datasheet download datasheet UM2149 Datasheet

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Other Datasheets by UMC

Part Number Description
UM2147 4K x 1 High Speed NMOS SRAM
UM2148 1K x 4 High Speed NMOS SRAM
UM23128 16K x 8 NMOS ROM
UM23128A 16K x 8 NMOS ROM
UM23256 32K x 8 NMOS ROM

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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(l)UMC UM2149 1K·· X 4 High Speed NMOS SRAM Features • 45 ns maximum address access • Fully static operation: No clocks or strobes required • Fast chip select access time: 20ns max. • Identical cycle and access times • Single +5V supply • Industry standard 2114 pinout • Totally TTL compatible: All inputs and outputs • Common data input and outputs Ii High density 18-pin package • Three-state output General Description The UMC UM2149 is a 4096-8it Static Random Access Memory organized 1024 words by 4 bits and is fabricated using UMC's new N-channel Silicon-Gate HMOS technology. It is designed using fully static circuitry, therefore requiring no clock or refreshing to operate.