PIC16F72 is a little classical IC, but cheap enough as a start point for PIC.
PIC16F72 has following features:
25 I / O ports, 12 interrupts, 11 channels 8-bit AD conversion, two 8-bit timers, a 16-bit timer, 128 bytes SRAM, addressable general purpose synchronous / asynchronous transceivers, 2048 words of flash program memory.
- All I / O ports are led to facilitate the user external to other peripherals.
- On-board 8MHZ crystal.
- On-board power indicator.
- On-board reset button.
- MicroUSB mini power jack.
- Lead out programming interface to facilitate users to download debugging, PICkit can easily program it well.
- Size 37MM * 32MM.