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UM8051 - Single Chip 8-Bit Microcomputer

General Description

The UM8051/8031 is a stand-alone, high-performance single-chip computer fabricated with UMC's highly-reliable +5 Volt, NMOS technology and packaged in a 40-pin DIP.

Key Features

  • 4K x BROM.
  • 128 x 8 RAM.
  • Four 8-bit ports, 32 I/O lines.
  • Two 16-bit timer/event counters.
  • High-performance full-duplex serial channel.
  • External memory expandable to 128K.
  • Boolean processor.
  • UM8048 architecture enhanced with:.
  • Non-paged jumps.
  • Direct addressing.
  • Four 8-register banks.
  • Stack depth up to 128 -bytes.
  • Multiply, divide, subtract, compare.
  • Most instructions exe.

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Datasheet Details

Part number UM8051
Manufacturer UMC
File Size 489.67 KB
Description Single Chip 8-Bit Microcomputer
Datasheet download datasheet UM8051 Datasheet

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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eUMC UMBOS1 / UMB031 ======::::Single Chip 8-Bit Microcomputer Features • 4K x BROM • 128 x 8 RAM • Four 8-bit ports, 32 I/O lines • Two 16-bit timer/event counters • High-performance full-duplex serial channel • External memory expandable to 128K • Boolean processor • UM8048 architecture enhanced with: • Non-paged jumps • Direct addressing • Four 8-register banks • Stack depth up to 128 -bytes • Multiply, divide, subtract, compare • Most instructions execute in 1~s • 4~s multiply and divide General Description The UM8051/8031 is a stand-alone, high-performance single-chip computer fabricated with UMC's highly-reliable +5 Volt, NMOS technology and packaged in a 40-pin DIP. It provides the hardware features, architectural enhancements and new instructions that are necessary to make it a.