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SN54HCT74, SN74HCT74 DUAL DĆTYPE POSITIVEĆEDGEĆTRIGGERED FLIPĆFLOPS
WITH CLEAR AND PRESET
SCLS169E − DECEMBER 1982 − REVISED APRIL 2004
D Operating Voltage Range of 4.5 V to 5.5 V D Outputs Can Drive Up To 10 LSTTL Loads D Low Power Consumption, 40-µA Max ICC D Typical tpd = 17 ns D ±4-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Inputs Are TTL-Voltage Compatible
description/ordering information
The ’HCT74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs.