7400 series

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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.
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Northrop Grumman has delivered more than 7,500 vehicles in the 74 series, including the MQM/BQM-74 and the Chukar, the international version.
Since the inception of the Authority's secondary market operations in early 1990 the Authority has issued 74 series of bonds or notes in an aggregate principal amount of $3,792,991,448.
The VCX family is pin and function compatible to 74 series 16xxx parts, and provides power-down protection for all I/O pins, together with a minimum symmetrical drive capability of +/-24mA at 3.