Download the CDP1851C datasheet PDF.
This datasheet also covers the CDP1851 variant, as both devices belong to the same cmos programmable i/o interface family and are provided as variant models within a single manufacturer datasheet.
Features
- 20 Programmable 110 Lines.
- Programmable for Operation in Four Modes:
Input Output Bidirectional Bit-programmable.
- Operates in Either I/O or Memory Space
The RCA CDP1851 and CDP1851C are CMOS programmable two-port I/Os designed for use as general-purpose 1/0 devices. They are directly compatible with CDP1800 series microprocessors functioning at maximum clock frequency. Each port can be programmed in either byte-I/O or bit-programmable modes for interfacing with peri.