dual d-type positive edge-triggered flip flops with clear and preset.
* VCC = 4.5 to 5.5 V operation
* Input terminal has protection diode
Function Table
Inputs PRE L H L H H H CLR H L L H H H CLK X X X ↑ ↑ L D X X X H L X Outputs .
The HD74HCT74A has independent data, preset, clear, and clock inputs Q and Q outputs in a 14 pin package. The logic level present at the data input is transferred to the output during the positive going transition of the clock pulse. Preset and clear.
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