name: MAX389 function: 8 ch. 2of8 multiplexer package: DIP,18 manufacturer: Maxim added-by: Rick Weissgerber +--()--+ _WR_ | 1 18| _RS_ A0 | 2 17| A1 EN | 3 16| GND V- | 4 15| V+ IN1A | 5 14| IN1B IN2A | 6 13| IN2B IN3A | 7 12| IN3B IN4A | 8 11| IN4B OUTA | 9 10| OUTB +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/