name: MC54F153 function: dual 4-input multiplexer package: ceramic,16 manufacturer: motorola added-by: spamdogg +--()--+ Ea- | 1 16| Vcc S1 | 2 15| Eb- I3a | 3 14| S0 I2a | 4 13| I3b I1a | 5 12| I2b I0a | 6 11| I1b Za | 7 10| I0b GND | 8 9| Zb +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/