UPD7566A Overview
The µPD7566A is a product of the µPD7554, 7564 sub-series which is a low-end, low-cost version of the µPD7500 series microputers. This 4-bit single-chip microputer has fewer ports than the other products in the µPD7500 series, in order to reduce the package size, and is especially ideal for temperature control applications, as well as for application systems, such as air conditioners, microwave ovens, refrigerators,...
UPD7566A Key Features
- 45 instructions (subset of the µPD7500H SET B)
- Instruction cycle: 2.86 microseconds (700 kHz, at 5V) with ceramic oscillator
- Program memory (ROM): 1,024 words x 8 bits
- Data memory (RAM): 64 words x 4 bits
- Test sources: 1 external and 1 internal
- 8-bit timer/event counter
- Standby functions (STOP/HALT)
- Data memory contents can be retained on a low voltage
- Internal ceramic oscillator for system clock oscillation
- Low-power dissipation