The Microchip PIC16C622A 8-bit CMOS microcontroller has a RISC architecture. It operates on 2.5V to 5.5V voltage range. This microcontroller features eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with the separate 8-bit wide data. The two-stage instruction pipeline allows all instructions to execute in a single cycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available. It features 20 I/O pins, 2KBytes EEPROM and 128Bytes Data memory.

Low power, high speed CMOS EPROM technology
Fully static design
Frequency range of 200 kHz
13 I/O pins with individual direction control
High current sink/source for direct LED drive
Two analog comparators
Programmable on-chip voltage reference (VREF) module
Programmable input multiplexing from device inputs and internal voltage reference
Comparator outputs can be output signals
Power-on Reset (POR)
Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
Brown-out Reset
Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
Programmable code protection
Power saving SLEEP mode
Selectable oscillator options
Serial in-circuit programming (via two pins)
Four user programmable ID locations
Low power consumption
Temperature range between 0°C and +70°C
SOIC package