This chip is a variation of the 12F509 with more pins.
To use this chip at its maximum speed of 20 MHz an external crystal or resonator is required, like X-20M, X-SMD-20M, R-20M. This chip can also run on its internal oscillator, but this limits the operating frequency to 4 MHz.
The PCB-22 can be used to use this chip in a breadboard, etc.
manufacturer: Microchip
Related products: |
X-20M | 20 MHz crystal + 2 * 20 or 22 pF capacitors |
|
X-SMD-20M | 20 SMD MHz crystal |
|
R-20M | 20 MHz resonator with build-in capacitors |