Crystal Oscillator – Parallel Resonant
74HCU04 is a chip that was made for this purpose, HCT may not work for such a circuit. C1 and C2 can go to upto 33pF and R2 can be increased to make R2...
Category: Digital-Circuits
Multiplexed Presettable Timer with ICM7217
This was a attempt to make a Sequential Timer with ICM7217 of Intersil, even though it worked well, it was not developed beyond the prototype stage or first iteration. Only when a product is...
Printer Port Logic Analyzer
This is a Test Circuit for Logic Analyzer software, with the Simple port circuit. The VB Logic Analyzer works, but is just an example program to test and learn. The speed at which the...
Simple Printer Port Interface
Printer Port Circuit to see the inputs logic state and drive a few outputs. The preset control program helps test out the circuit operation. Use safe 5V Levels. Simple Printer Port Interface, Input-Output –...
