74C923 Circuit Diagram. But i think this ic is becoming obsolete, so before i. I'm currently using a 74c923 to decode a 3x5 key keypad (ignoring the 4th column).
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Web 74C923 Connection Diagrams (Continued) Pin Assignment For Dip And Soic Package Top View Mm74C923 Truth Tables (Pins 0 Through 11) (Pins 12 Through 19) Note 1:
And also these encoders provide the facility of priority such that when two keys are pressed at the same. Web block diagram absolute maximum ratings(note 2) voltage at any pin vcc operating temperature range 74c922 / 74c923 storage temperature rangepower dissipation (p. Scribd is the world's largest social reading and publishing site.
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Web specifications of 7473 ic: Web general description the mm74c922 and mm74c923 cmos key encoders provide all the necessary logic to fully encode an array of spst switches. Web one of such type of keyboard encoder is 20 key, 74c923.
