* other brands and names are the property of their respective owners. information in this document is provided in connection with intel products. intel assumes no liability whatsoever, including infringement of any patent or copyright, for sale and use of intel products except as provided in intel's terms and conditions of sale for such products. intel retains the right to make changes to these specifications at any time, without notice. microcomputer products may have minor variations to this specification known as errata. june, 2002 copyright ? inte l corporation , 2002 orde r number : 272431-005
80c186xl/80c188xl 16-bit high-integration embedded processors contents page introduction 4 80c186xl core architecture 4 80c186xl clock generator 4 bus interface unit 5 80c186xl peripheral architecture 5 chip-select/ready generation logic 5 dma unit 6 timer/counter unit 6 interrupt control unit 6 enhanced mode operation 6 queue-status mode 6 dram refresh control unit 7 power-save control 7 interface for 80c187 math coprocessor (80c186xl only) 7 once test mode 7 package information 8 pin descriptions 8 80c186xl/80c188xl pinout diagrams 16 electrical specifications 22 absolute maximum ratings 22 dc specifications 22 power supply current 23 contents page ac specifications 24 major cycle timings (read cycle) 24 major cycle timings (write cycle) 26 major cycle timings (interrupt acknowledge cycle) 27 software halt cycle timings 28 clock timings 29 ready, peripheral and queue status timings 30 reset and hold/hlda timings 31 ac timing waveforms 36 ac characteristics 37 explanation of the ac symbols 39 derating curves 40 80c186xl/80c188xl express 41 80c186xl/80c188xl execution timings 41 instruction set summary 42 revision history 48 errata 48 product identification 48 2
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