PIC 14 Pin 20MHz 4K 8A/D - 16F688
Microchip's 14-Pin 16F688 8-Bit Processor. 4K of program space and 12 I/O lines.
8 channel Analog to Digital Converter!
Runs up to 20MHz with external crystal or up to 8MHz with the internal RC oscillator.
Package can be programmed in circuit.