7400 series

(redirected from 7400 series logic)

7400 series

The designation for more than 400 different digital logic integrated circuits, including NAND and NOR gates, inverters, buffers, decoders, frequency dividers, shift registers, flip-flops and binary adders. Introduced in the early 1960s by Texas Instruments for the first bipolar transistor-based TTL chips, the numbers are widely used by all manufacturers. CMOS versions of the 7400 series subsequently became available.