Microchip PIC, PIC16 Microcontroller MCU, 28-Pin SOIC

The Microchip PIC series 8bit MCU has 3.5 KB OTP, 128B RAM, 22 I/O ports and 28 pins. It has a frequency range of 4MHz and it's operating temperature ranges between -40°C to +85°C (Industrial).

Only 35 single word instructions to learn
All single cycle instructions except for program branches which are two-cycle
Eight level deep hardware stack
Direct, indirect and relative addressing modes
Power-on Reset (POR)
Power-up Timer (PWRT) and oscillator start-up timer (OST)
Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation