393 Binary Counter problems
hi
i trying learn different types of commonly used ics, , end playing around 393 binary counter last night.
i set led on each output q0 - q3, 10k pull-down on mr line, , 10k pull-up on clk line. hooked +5v , gnd also.
using jumper wire attached clk line, intending touch ground increment counter, found holding wire caused counter count crazy. tried hooking jumper tact switch pull gorund, worked better still skipped 2 or 3 counts every time pressed it.
my question: what's best way "smooth" out bit? assume it's sort of debouncing problem, what's easiest hardware solution? thinking maybe rc filter, how size resistor , cap?
thanks help!
i trying learn different types of commonly used ics, , end playing around 393 binary counter last night.
i set led on each output q0 - q3, 10k pull-down on mr line, , 10k pull-up on clk line. hooked +5v , gnd also.
using jumper wire attached clk line, intending touch ground increment counter, found holding wire caused counter count crazy. tried hooking jumper tact switch pull gorund, worked better still skipped 2 or 3 counts every time pressed it.
my question: what's best way "smooth" out bit? assume it's sort of debouncing problem, what's easiest hardware solution? thinking maybe rc filter, how size resistor , cap?
thanks help!
if want manually switch wires, build sr flip-flop 2 nand gates , use output trigger counter.
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