Description: 8155 as input and output, and RAM expansion of IC. Features: 256 bytes of RAM. A programmable six IO port. Two programmable 8-bit IO port. 14-bit binary counter programmable timer. Multiplexing address and data bus. Internal address latch. 8155 in a 40-foot two-line package, single+5 v power.
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8155\8155.C
....\sch.docx
8155
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