AN552
Overview
Microchip's PIC16CXXX microcontroller family are ideally suited to directly interface to a keypad. The high 4-bits of PORTB (RB7:RB4) have internal pull-ups and can trigger a “change on state” interrupt.
| Part | AN552 |
|---|---|
| Description | Implementing Wake-up on Key Stroke |
| Manufacturer | Microchip Technology |
| Size | 109.79 KB |