name: DS3486 function: Quad RS-422, RS-423 Line Receiver package: DIP 16pin,16 manufacturer: National Semiconductor added-by: Oscar Knight +--()--+ IN A- | 1 16| Vcc IN A+ | 2 15| IN B- OUT A | 3 14| IN B+ ENABLE A/C | 4 13| OUT B OUT C | 5 12| ENABLE B/D IN C+ | 6 11| OUT D IN C- | 7 10| IN D+ GND | 8 9| IN D- +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/