74C922 encoder equivalent, 16/ 20-key encoder.
Y Y Y Y Y Y Y Y Y
50 kX maximum switch on resistance On or off chip clock On-chip row pull-up devices 2 key roll-over Keybounce elimination with single capacitor Last ke.
Synchronous Handshake (MM74C922) Synchronous Data Entry Onto Bus (MM74C922)
TL F 6037
– 10 TL F 6037
These 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 pullup devices which permit swit.
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