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SN54HCT74, SN74HCT74
SCLS169G – DECEMBER 1982 – REVISED OCTOBER 2022
SNx4HCT74 Dual D-Type Positive-Edge-Triggered Flip-Flips With Clear and Preset
1 Features
• Operating voltage range of 4.5 V to 5.5 V • Outputs can drive up to 10 LSTTL loads • Low power consumption, 40-μA max ICC • Typical tpd = 17 ns • ±4-mA output drive at 5 V • Low input current of 1 μA max • Inputs are TTL-voltage compatible
2 Description
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.