| Part Number | UM82C55A |
| Manufacturer | UMC |
| Title | CMOS PROGRMMABLE PERIPHERAL INTERFACE |
| Description | The UM82C55A is a high performance CMOS version of the industry standard 8255A and is manufactured using a selfaligned silicon gate CMOS process. ... |
| Features |
• Pin compatible with NMOS 8255A • 24 programmable I/O pins • Fully TTL compatible • Bus-hold circuitry on all I/O ports eliminates pull-up resistors • High speed, no "wait state" operation with 8M Hz 80C86 • Direct bit set/reset capabi lity • Enhan... |
| Datasheet |
 UM82C55A Datasheet
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