12F509

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 8-bit wide data path, 25 mA source/sink current I/O, Low power (100nA) sleep current, One 8-bit timer (TMR0),Watchdog timer (WDT) In Circuit Serial Programming™ (ICSP™) capability, In-Circuit debugging support, Programmable code protection