Description
The NTE74C922 (16
Key, 18
Lead DIP) and NTE74C923 (20
Key, 20
Lead DIP) CMOS key encoders provide all the necessary logic to fully encode an array of SPST switches.
chip pull
up devices which permit switches with up to 50kΩ on resistance to be used.
Features
- D 50kΩ Maximum Switch On Resistance D On or Off Chip Clock D On.
- Chip Row Pull.
- Up Devices D 2 Key Roll.
- Over D Keybounce Elimination with Single Capacitor D Last Key Register at Outputs D 3.
- STATE Output LPTTL Compatible D Wide Supply range: 3V to 15V D Low Power Consumption
Absolute Maximum Ratings: (Note 1) Operating VCC Range.
- . . . 3V to 15V VCC.