name: MC68HC705C8 function: MCU with inbuilt [P]ROM, RAM, IO, timers etc. package: 40-pin DIP,40 manufacturer: Motorola added-by: Mario Becroft comment: Also available in other housing, don't know whether pinout applies also to other MCUs in same family +--()--+ /RESET | 1 40| VDD /IRQ | 2 39| OSC1 VPP | 3 38| OSC2 PA7 | 4 37| TCAP PA6 | 5 36| PD7 PA5 | 6 35| TCMP PA4 | 7 34| PD5//SS PA3 | 8 33| PD4/SCK PA2 | 9 32| PD3/MOSI PA1 |10 31| PD2/MISO PA0 |11 30| PD1/TDO PB0 |12 29| PD0/RDI PB1 |13 28| PC0 PB2 |14 27| PC1 PB3 |15 26| PC2 PB4 |16 25| PC3 PB5 |17 24| PC4 PB6 |18 23| PC5 PB7 |19 22| PC6 VSS |20 21| PC7 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/