SCLS078H December 1982 – April 2021 SN54HC04 , SN74HC04
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
This device can be used to add an additional stage to a counter with an external flip-flop. Because counters use a negative edge trigger, the flip-flop's clock input must be inverted to provide this function. This function only requires one of the six available inverters in the device, so the remaining channels can be used for other applications needing an inverted signal or improved signal integrity. Unused inputs must be terminated at VCC or GND. Unused outputs can be left floating.