name: HT48RA0_SOP20 function: 8-Bit Microcontroller package: SOP20,20 manufacturer: Holtek +--()--+ PA1 | 1 20| PA2 PA0 | 2 19| PA3 PB1 | 3 18| PA4 PB0 | 4 17| PA5 PC0/REM | 5 16| PA6 VDD | 6 15| PA7 OSC2 | 7 14| PB2 OSC1 | 8 13| PB3 VSS | 9 12| PB4 RESB |10 11| PB5 +------+ This pinout came from the Chipdir: http://www.chipdir.org/ name: HT48RA0_DIP20 function: 8-Bit Microcontroller package: DIP20,20 manufacturer: Holtek +--()--+ PA1 | 1 20| PA2 PA0 | 2 19| PA3 PB1 | 3 18| PA4 PB0 | 4 17| PA5 PC0/REM | 5 16| PA6 VDD | 6 15| PA7 OSC2 | 7 14| PB2 OSC1 | 8 13| PB3 VSS | 9 12| PB4 RESB |10 11| PB5 +------+ This pinout came from the Chipdir: http://www.chipdir.org/ name: HT48RA0_SOP24 function: 8-Bit Microcontroller package: SOP24,24 manufacturer: Holtek +--()--+ PA1 | 1 24| PA2 PA0 | 2 23| PA3 PB1 | 3 22| PA4 PB0 | 4 21| PA5 PC0/REM | 5 20| PA6 VDD | 6 19| PA7 OSC2 | 7 18| PB2 OSC1 | 8 17| PB3 VSS | 9 16| PB4 RESB |10 15| PB5 NC |11 14| PB6 NC |12 13| PB7 +------+ This pinout came from the Chipdir: http://www.chipdir.org/