ICs
MM74C922N, 16-Key Encoder IC, DIP-18
- 16-Key Encoder IC – Converts a 4×4 matrix keypad into a 4-bit binary output for microcontroller interfacing.
- Built-in Key Debounce Circuit – Eliminates false keypresses with a single external capacitor.
- Two-Key Rollover Feature – Allows recognition of a second keypress while the first key is still held down.
- On-Chip Row Pull-Up Resistors – Eliminates the need for external pull-up components, simplifying circuit design.
- Wide Operating Voltage Range – Functions between 3V and 15V, making it compatible with various digital systems
- DIP-18 Package for Easy Prototyping – Standard through-hole package for easy PCB mounting and breadboarding.
