UPD7564A Description
The µPD7564A is a 4-bit single-chip microputer with a small number of ports in a small package, which is of low-order models, µPD7554 and 7564 sub-series in the µPD7500 series. With an on-chip serial interface, it performs efficient dispersion processing of a system as a sub-CPU for the 75X series or 78k series. The µPD7564A has outputs to directly drive a triac and LEDs and allows selection among many types of...
UPD7564A Key Features
- 47 types of instructions
- Instruction cycle
- Program memory (ROM) capacity: 1024 × 8 bits
- Data memory (RA