name: HT49C10 function: 8-Bit Microcontroller package: SSOP48,48 manufacturer: Holtek +--()--+ PA0/BZ | 1 48| RESB PA1/BZB | 2 47| OSC1 PA2 | 3 46| OSC2 PA3/PFD | 4 45| VDD PA4 | 5 44| OSC3 PA5 | 6 43| OSC4 PA6 | 7 42| SEG0 PA7 | 8 41| SEG1 PB0/INT0B | 9 40| SEG2 PB1/INT1B |10 39| SEG3 PB2/TMR |11 38| SEG4 PB3 |12 37| SEG5 PB4 |13 36| SEG6 PB5 |14 35| SEG7 VSS |15 34| SEG8 VLCD |16 33| SEG9 V1 |17 32| SEG10 V2 |18 31| SEG11 C1 |19 30| SEG12 C2 |20 29| SEG13 COM0 |21 28| SEG14 COM1 |22 27| SEG15 COM2 |23 26| SEG16 SEG18/COM3 |24 25| SEG17 +------+ This pinout came from the Chipdir: http://www.chipdir.org/