74140 - (2x) NAND 4-input (50 ohm line driver)

pinout

1 1A 14 VCC 2 1B 13 2D 3 NC 12 2C 4 1C 11 NC 5 1D 10 2B 6 1Y 9 2A 7 GND 8 2Y 74140 www.nanobob.com

symbol

1 1A 2 1B 6 1Y 4 1C 5 1D 9 2A 10 2B 8 2Y 12 2C 13 2D

function table

ABCD Y
0xxx 1
x0xx 1
xx0x 1
xxx0 1
1111 0

pin types

0 digital input 0 digital output 0 digital input-output (bidir) 0 analog (input or output) 0 positive power 0 ground 0 negative power