name: BS2-IC function: Basic Stamp 2 Microcontroller package: 24-pin DIP,24 manufacturer: PARALLAX added-by: Lajos Gyarmati comment: 20MHz;600 instr. +--()--+ TX | 1 24| PWR RX | 2 23| GND ATN | 3 22| RES GND | 4 21| +5V P0 | 5 20| P15 P1 | 6 19| P14 P2 | 7 18| P13 P3 | 8 17| P12 P4 | 9 16| P11 P5 |10 15| P10 P6 |11 14| P9 P7 |12 13| P8 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/