name: LM331 function: V to F converter package: DIP-8,8 manufacturer: National Semiconductor added-by: Thomas Klaeger +--()--+ Current Output | 1 8| VCC Reference Current | 2 7| Comparator Input Frequency Output | 3 6| Threshold GND | 4 5| RC +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/