Click to expand full text
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.