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UM23256A - 32K x 8 NMOS ROM

Download the UM23256A datasheet PDF. This datasheet also covers the UM23256 variant, as both devices belong to the same 32k x 8 nmos rom family and are provided as variant models within a single manufacturer datasheet.

General Description

The UM23256 and UM23256A high performance Read Only Memories are organized 32,768 words by 8 bits with access times from 200 ns to 450 ns.

Key Features

  • EPROM pin compatible.
  • 32,768 x 8 bit organization.
  • Single +5 volt supply.
  • Access time-200/300/450ns (max).
  • Totally static operation.
  • Completely TTL compatible.
  • 28 Pin JEDEC approved pinout.
  • UM23256A- automatic power down (CE) output enable function (OE).
  • UM23256 non power down version two programmable chip selects (CS).
  • Three state outputs for wire-OR expansion.
  • EPROMs accepted as program data in.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UM23256-UMC.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UM23256A
Manufacturer UMC
File Size 141.48 KB
Description 32K x 8 NMOS ROM
Datasheet download datasheet UM23256A Datasheet

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Other Datasheets by UMC

Part Number Description
UM23256 32K x 8 NMOS ROM
UM23128 16K x 8 NMOS ROM
UM23128A 16K x 8 NMOS ROM
UM2332 4K x 8 NMOS ROM
UM2333 4K 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.

View original datasheet text
eUMC UM23256/ UM23256A Features • EPROM pin compatible • 32,768 x 8 bit organization • Single +5 volt supply • Access time-200/300/450ns (max) • Totally static operation • Completely TTL compatible • 28 Pin JEDEC approved pinout • UM23256A- automatic power down (CE) output enable function (OE) • UM23256 non power down version two programmable chip selects (CS) • Three state outputs for wire-OR expansion • EPROMs accepted as program data input General Description The UM23256 and UM23256A high performance Read Only Memories are organized 32,768 words by 8 bits with access times from 200 ns to 450 ns. The ROMs are designed to be compatible with all microprocessor and similar applications where high performance, large bit storage and simple interfacing are important design considerations.