4017 - Decade counter with 10 decoded outputs (5-stage Johnson counter)

pinout

4017 www.nanobob.com

symbol

www.NanoBob.com 13 CP1 14 CP0 15 MR 3 Q0 2 Q1 4 Q2 7 Q3 10 Q4 1 Q5 5 Q6 6 Q7 9 Q8 11 Q9 12 Q5-9

description

MR : reset (Q0 active)

CP0 : clock (counts on ⇧ edge)

CP1 : clock (counts on ⇩ edge)

timing diagram

pin types

0 digital input (inverted) 0 digital output (inverted) 0 digital input-output (bidir) 0 analog (input or output) 0 positive power 0 ground 0 negative power