name: 68HC11A8 function: mcu package: 48 pin DIP,48 manufacturer: Motorola added-by: Mark Orton +--()--+ PA7/PAI/OC1 | 1 48| VDD PA6/OC2/OC1 | 2 47| PD5/*SS PA5/OC3/OC1 | 3 46| PD4/SCK PA4/OC4/OC1 | 4 45| PD3/MOSI PA3/OC5/OC1 | 5 44| PD2/MISO PA2/IC1 | 6 43| PD1/TxD PA1/IC2 | 7 42| PD0/RxD PA0/IC3 | 8 41| *IRQ PB7/A15 | 9 40| *XIRQ PB6/A14 |10 39| *RESET PB5/A13 |11 38| PC7/A7/D7 PB4/A12 |12 37| PC6/A6/D6 PB3/A11 |13 36| PC5/A5/D5 PB2/A10 |14 35| PC4/A4/D4 PB1/A9 |15 34| PC3/A3/D3 PB0/A8 |16 33| PC2/A2/D2 PE0/AN0 |17 32| PC1/A1/D1 PE1/AN1 |18 31| PC0/A0/D0 PE2/AN2 |19 30| XTAL PE3/AN3 |20 29| EXTAL VRL |21 28| STRB/R/*W VRH |22 27| E VSS |23 26| STRA/AS MODB |24 25| MODA/*LIR +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/