SCLS160E December 1982 – March 2022 SN54HC4040 , SN74HC4040
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The ’HC4040 devices are 12-stage asynchronous binary counters, with the outputs of all stages available externally. A high level at the clear (CLR) input asynchronously clears the counter and resets all outputs low. The count is advanced on a high-to-low transition at the clock (CLK) input. Applications include time-delay circuits, counter controls, and frequency-dividing circuits.