Below schematic shows the design of a Digital Up-Down Counter Circuit Diagram and PCB Layout (by Gary Lecomte, Chemelec Project). This circuit board design uses a CD40110BE, and Up/Down Counter IC’s. The CD40110BE is a dual-clocked up/down counter with a special preconditioning circuit that allows the counter to be clocked, via posting going inputs, up or down regardless of the state or timing of the other clock line.
Courtesy of Gary Lecomte - Chemelec Project
All the un-marked resistors should be at least 680 Ohms for up to 12 Volts supply voltage. For higher supply voltages up to 18 volts or reduced currents, increase these values to 1500 Ohms.
Courtesy of Gary Lecomte - Chemelec Project
Source:
- http://www3.telus.net/chemelec/Projects/Counter-UD/Counter-UD.htm
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6 comments for this entry ↓
1 ikayZZZ // Feb 25, 2011 at 6:42 pm
hello.. where is the schematic diagram?
2 luis miranda // Mar 10, 2011 at 11:20 pm
dear sir . I need a small digital counter for a small propel (air )also count the right or left turns the propel length is 80 mm .
please contact me .
3 solos2501@hotmail.com // Mar 11, 2011 at 10:13 am
I need information all.
4 cristian // Apr 28, 2011 at 1:56 am
can be use like a stopwatch?
5 anshul mehta // Sep 8, 2011 at 1:33 pm
i need a counter realated to 10H.P motor for the automation of machine
6 RNOMMO // May 6, 2012 at 9:18 pm
Please,send me the circuit diagram.
Thanks
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