2x Atmel ATMEGA328P-PU 8bit AVR Microcontroller 20MHz 32 kB Flash, Arduino UNO

1 x PIC16LF88-I/P 8 bit PIC Microcontroller 256 B 7168 B Flash 368 B RAM PDIP-18

ATTINY 85-20 PU 8-bit ATtiny AVR-RISC microcontroller 20 MHz DIP 8 UK

1 x Atmel ATTINY461-20MU, 8bit AVR Microcontroller 20MHz, 256B, 4kB Flash 32-Pin

Arduino Shield Compatible Microcontroller PCB Basic Stamp Nano PIC Robotics UNO

1 x Zilog Z8F0422SJ020SG, 8bit Z8 Microcontroller, 20MHz, 4 kB Flash, 28-Pin

Arduino UNO ATMEGA328P Microcontroller With BootLoader Socket 16MHz XTAL & Caps

1 x Microchip PIC12F629-I/P, 8bit PIC Microcontroller, 20MHz, 128 B