MCHPPIC18F26K40-I/SP
Overview
The PIC18F26K40-I/SP is an 8-bit microcontroller that combines 64KB of Flash memory with Core Independent Peripherals (CIPs) for high-performance, low-power applications. Operating at up to 64MHz, it features 1KB of EEPROM and integrated hardware such as a Zero-Cross Detect (ZCD) and Windowed Watchdog Timer (WWDT). The 28-pin SPDIP package makes it particularly well-suited for through-hole prototyping and legacy system maintenance.
Why Choose This Part
This MCU offers a high memory-to-pin ratio with 64KB of Flash in a compact 28-pin footprint. Its eXtreme Low-Power features, such as Doze and Idle modes, allow for granular power management, while the 5.5V maximum VDD provides excellent noise immunity for industrial designs.
Applications
Key Specifications
Getting Started
Develop firmware using the MPLAB X IDE and the XC8 Compiler. Hardware programming and debugging are typically performed using the MPLAB PICkit 4 or MPLAB Snap via the ICSP interface. For rapid prototyping, the MPLAB Code Configurator (MCC) can be used to generate peripheral initialization code.
PIC18F26 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Flash | RAM | I/O Pins | Package | ADC/DAC | Connectivity | Stock |
|---|---|---|---|---|---|---|---|
| PIC18F26K40-I/SP (this part) | 64KB | 3.6K | 25 | DIP-28 | A/D 24x10b; D/A 1x5b | I2C, LINbus, SPI, .. | 1,333 |
| PIC18F26K83-E/SS | 64KB | 4K | 25 | SSOP-28 | A/D 24x12b; D/A 1x5b | CANbus, I2C, LINbu.. | 4,276 |
| PIC18F26K42-I/SO | 64KB | 4K | 25 | SOIC-28 | A/D 24x12b; D/A 1x5b | I2C, LINbus, SPI, .. | 25,499 |
| PIC18F26Q10-I/SS | 64KB | 3.53K | 25 | SSOP-28 | A/D 24x10b; D/A 1x5b | I2C, LINbus, SPI, .. | 1,184 |
| PIC18F26Q10-E/ML | 64KB | 3.53K | 25 | VQFN-28 | A/D 24x10b; D/A 1x5b | I2C, LINbus, SPI, .. | — |
| PIC18F26K22-I/SP | 64KB | 3.8K | 24 | DIP-28 | A/D 19x10b | I2C, SPI, UART/USART | 1,636 |
| PIC18F26K42-I/SP | 64KB | 4K | 25 | DIP-28 | A/D 24x12b; D/A 1x5b | I2C, LINbus, SPI, .. | 963 |



