MCHPPIC18F25K22-I/SP
Overview
The PIC18F25K22-I/SP is a versatile 8-bit microcontroller featuring Microchip's eXtreme Low Power (XLP) technology and a high-performance 64MHz core. It offers 32KB of Flash memory and 1.5KB of RAM in a 28-pin SPDIP package, making it an ideal choice for low-power portable applications and rapid prototyping. The device includes a rich set of peripherals, such as 17 ADC channels and dual communication interfaces for I2C, SPI, and UART.
Why Choose This Part
The part excels in power efficiency with multiple low-power modes and a wide operating voltage range of 2.3V to 5.5V. Its 28-pin SPDIP package is specifically advantageous for breadboarding and through-hole PCB designs where surface-mount assembly is not preferred. The 64MHz internal oscillator provides high processing throughput without the need for external timing components.
Applications
Key Specifications
Getting Started
To begin development, use the MPLAB X IDE and the MPLAB XC8 compiler. Hardware debugging is typically performed via the MPLAB PICkit 4 or MPLAB Snap in-circuit debuggers connected through the ICSP header. For evaluation, the Curiosity Development Board (DM164137) is a common platform, or the chip can be placed directly into a breadboard for rapid circuit testing.
PIC18F25 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Flash | RAM | I/O Pins | Package | Speed | ADC/DAC | Stock |
|---|---|---|---|---|---|---|---|
| PIC18F25K22-I/SP (this part) | 32KB | 1.5K | 24 | DIP-28 | 64M | A/D 19x10b | 8,237 |
| PIC18F25K40-I/ML | 32KB | 2K | 25 | VQFN-28 | 64M | A/D 35x10b; D/A 1x5b | 976 |
| PIC18F25K42-I/SS | 32KB | 2K | 25 | SSOP-28 | 64M | A/D 24x12b; D/A 1x5b | 1,388 |
| PIC18F25K42-E/ML | 32KB | 2K | 25 | VQFN-28 | 64M | A/D 24x12b; D/A 1x5b | — |
| PIC18F25K50-I/SP | 32KB | 2K | 22 | DIP-28 | 48M | A/D 14x10b | 672 |
| PIC18F25K42-I/SP | 32KB | 2K | 25 | DIP-28 | 64M | A/D 24x12b; D/A 1x5b | 558 |
| PIC18F25K83-E/SS | 32KB | 2K | 25 | SSOP-28 | 64M | A/D 24x12b; D/A 1x5b | 761 |
| PIC18F25K80-I/SS | 32KB | 3.6K | 24 | SSOP-28 | 64M | A/D 8x12b | 1,799 |
| PIC18F25K22-I/ML | 32KB | 1.5K | 24 | VQFN-28 | 64M | A/D 19x10b | 752 |
| PIC18F25K42-E/SO | 32KB | 2K | 25 | SOIC-28 | 64M | A/D 24x12b; D/A 1x5b | — |
| PIC18F25K40T-I/MV | 32KB | 2K | 25 | UFQFN-28 | 64M | A/D 35x10b; D/A 1x5b | — |
| PIC18F25Q43-E/SSVAO | 32KB | 2K | 25 | SSOP-28 | 64M | A/D 24x12b SAR; D/.. | — |



