UMC UM82C380 (386 HEAT)

Description:

The UMC's HEAT (High End AT) Chip Set UM82C380 is a highly integrated, flexible solution for high performance 80386 PC/AT compatible systems. Fabricated using advanced 1.2u CMOS VLSI technology, it provides high reliability, low power, low chip count features for system implementation. A commercial 25MHz/0 wait state. 12MByte main memory system with cache memory control and math-coprocessor features can be easily built in a standard baby AT size mother board with all necessary components included.

The non-cached version of HEAT consists of five parts:

  • UM82C381 System Controller
  • UM82C382 Address Buffer
  • UM82C383 Data Buffer
  • UM82C384 Page Interface
  • UM82C206 Integrated Peripheral Controller

The HEAT series supports a local 32-bit CPU/MP bus, a 32-bit memory data bus, a 16-bit AT channel bus, an 8 bit I/O channel peripheral data bus and 8MHz system clock to provide the best compatibility with industry standards.

Features:

  • Highly integrated 25 MHz/0 wait state 80386 PC/AT compatible
  • Supports UMC UM82152/INTEL 82385 Cache Controllers
  • Easy Page/Cache mode interchange on motherboard
  • 32-bit memory bus interface
  • Slow DRAM 100/120 ns at 25/20 MHz 0 wait state operation
  • Supports 1M/256K SIM module
  • On-board memory up to 12MBytes, extendable to 32MBytes using add-on card
  • Shadow RAM for system BIOS
  • 8MHz I/O bus timing
  • Supports 80287/80387 /3167 Math-coprocessor
  • EMS 4.0 interface through software emulation
  • DOS/OS2/XENIX/UNIX operation
  • Commercially available BIOS (Phoenix/Award/AMI) applicable
Last updated 2019-04-30T00:00:00Z
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