MC146823
MC146823 is CMOS Parallel Interface manufactured by Motorola Semiconductor.
® MOTOROLA
Advance Information
CMOS PARALLEL INTERFACE
CMOS
IHIGH-DENSITY HIGH-PERFORMANCE SILICON-GATE)
PARALLEL INTERFACE
The MC146823 CMOS parallel interface (CPI) provides a universal means of interfacing external signals with the MC146805E2 CMOS microprocessor and other multiplexed bus microprocessors. The unique MOTEL circuit on-chip allows direct interfacing to most industry CMOS microprocessors, as well as many NMOS MPUs.
I The MC146823 CPI includes three bidirectional 8-bit ports or 241/0 pins. Each 1/0 line may be separately established as an input or an output under program control via data direction registers associated with each port. Using the bit change and test...
