name: LM8350 function: STN LCD display bias Voltage source package: DIP24,24 manufacturer: National Semiconductor +--()--+ gnd | 1 24| Vcc on/of | 2 23| sw_out Vc2 | 3 22| Vref1 Vin2 | 4 21| Vref2 rx1 | 5 20| v0 rx2 | 6 19| v1 rx3 | 7 18| v2 rx4 | 8 17| v3 rx5 | 9 16| v4 rx6 |10 15| reset Vc1 |11 14| Vsense gnd |12 13| Vdd +------+ This pinout came from the Chipdir: http://www.chipdir.org/