The Microchip PIC12F508 devices from Microchip Technology are low cost, high performance, 8 bit, fully static, flash based CMOS microcontrollers. They employ a RISC architecture with only 33 single word or single cycle instructions. All instructions are single cycle except for program branches, which take two cycles. The 12-bit wide instructions are highly symmetrical, resulting in a typical 2:1 code compression over other 8 bit microcontrollers in its class. The easy to use and easy to remember instruction set reduces development time significantly.

Precision 4 MHz internal oscillator
Baseline Core with 33 Instructions 2 Stack Levels
All single cycle Instructions except for program branches which are two cycles
12 bit wide instructions
8bit wide data path
25 mA source or sink current I/O
Low power 100nA sleep current
One 8-bit timer TMR0
Watchdog timer
In Circuit Serial Programming capability
In Circuit debugging support
Programmable code protection