M74C923 - MM74C923
www.DataSheet4U.com The MM74C922 and MM74C923 CMOS key encoders provide all the necessary logic to fully encode an array of SPST switches.
The keyboard scan can be implemented by either an external clock or external capacitor.
These encoders also have on-chip pull-up devices which permit switches wi
M74C923 Features
* s 50 kΩ maximum switch on resistance s On or off chip clock s On-chip row pull-up devices s 2 key roll-over s Keybounce elimination with single capacitor s Last key register at outputs s 3-STATE output LPTTL compatible s Wide supply range: 3V to 15V s Low power consumption Ordering Code: Order Numb
