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CD4017
Description
Pulse width modulation circuit
CD4017 is a 5th order Johnson decoding counter with 10 decoding outputs, CLOCK, RE, INH inputs, and a Schmidt trigger with pulse shaping function at the clock input, which has no limit on the rise and fall time of input clock pulses. INH is low level, and the counter counts on the rising edge of the clock; On the contrary, the counting function is invalid. RE is high level, and the counter is reset to zero.