MCHPPIC18F26Q43-I/SO
Overview
The PIC18F26Q43-I/SO is a high-performance 8-bit microcontroller featuring 64KB of Flash memory and a 64MHz internal oscillator. Part of the PIC18-Q43 family, it is designed with Core Independent Peripherals (CIPs) that handle tasks in hardware to reduce CPU overhead and power consumption. This 28-pin SOIC device includes a 12-bit ADC with Computation (ADC2) and multiple communication interfaces including UART, SPI, and I2C.
Why Choose This Part
The primary advantage is the extensive set of Core Independent Peripherals which allow for complex timing and logic operations to run autonomously. It offers a significant memory footprint for an 8-bit device with 64KB Flash and 4KB RAM, making it suitable for sophisticated C-language applications. The inclusion of 1KB of dedicated EEPROM provides reliable non-volatile storage for configuration data without consuming program memory.
Applications
Key Specifications
Getting Started
Developers can begin by using the MPLAB X IDE and the XC8 compiler provided by Microchip. For hardware evaluation, the PIC18F26Q43 Curiosity Nano (EV24Q03A) is the recommended development board. Programming and debugging are typically performed using the MPLAB PICkit 4 or ICD 4 in-circuit debuggers via the ICSP interface.
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 |
|---|---|---|---|---|---|---|---|
| PIC18F26Q43-I/SO (this part) | 64KB | 4K | 25 | SOIC-28 | A/D 24x12b; D/A 1x8b | I2C, LINbus, SPI, .. | 618 |
| PIC18F26K42-E/ML | 64KB | 4K | 25 | VQFN-28 | A/D 24x12b; D/A 1x5b | I2C, LINbus, SPI, .. | 7,568 |
| PIC18F26K83-I/SP | 64KB | 4K | 25 | DIP-28 | A/D 24x12b; D/A 1x5b | CANbus, I2C, LINbu.. | 6,090 |
| PIC18F26Q10-I/SP | 64KB | 3.53K | 25 | DIP-28 | A/D 24x10b; D/A 1x5b | I2C, LINbus, SPI, .. | 1,011 |
| PIC18F26K22-I/SO | 64KB | 3.8K | 24 | SOIC-28 | A/D 19x10b | I2C, SPI, UART/USART | 3,162 |
| PIC18F26K83-E/SO | 64KB | 4K | 25 | SOIC-28 | A/D 24x12b; D/A 1x5b | CANbus, I2C, LINbu.. | 1,226 |
| PIC18F26K42-I/SS | 64KB | 4K | 25 | SSOP-28 | A/D 24x12b; D/A 1x5b | I2C, LINbus, SPI, .. | 73 |
| PIC18F26K40T-I/MV | 64KB | 3.6K | 25 | UFQFN-28 | A/D 24x10b; D/A 1x5b | I2C, LINbus, SPI, .. | 12,415 |
| PIC18F26K40-I/SS | 64KB | 3.6K | 25 | SSOP-28 | A/D 24x10b; D/A 1x5b | I2C, LINbus, SPI, .. | 3,834 |
| PIC18F26K83-I/SS | 64KB | 4K | 25 | SSOP-28 | A/D 24x12b; D/A 1x5b | CANbus, I2C, LINbu.. | 2,677 |
| PIC18F26Q10-I/SO | 64KB | 3.53K | 25 | SOIC-28 | A/D 24x10b; D/A 1x5b | I2C, LINbus, SPI, .. | 2,173 |
| PIC18F26Q43-E/SS | 64KB | 4K | 25 | SSOP-28 | A/D 24x12b; D/A 1x8b | I2C, LINbus, SPI, .. | 2,787 |
| PIC18F26K83-I/SO | 64KB | 4K | 25 | SOIC-28 | A/D 24x12b; D/A 1x5b | CANbus, I2C, LINbu.. | 1,421 |
| PIC18F26Q84-I/SP | 64KB | 4K | 25 | DIP-28 | A/D 24x12b; D/A 1x8b | CANbus, I2C, LINbu.. | 943 |
| PIC18F26K83-I/MX | 64KB | 4K | 25 | UQFN-28 | A/D 24x12b; D/A 1x5b | CANbus, I2C, LINbu.. | 1,071 |
| PIC18F26K22-I/SS | 64KB | 3.8K | 24 | SSOP-28 | A/D 19x10b | I2C, SPI, UART/USART | 3,350 |
| PIC18F26K80-I/SP | 64KB | 3.6K | 24 | DIP-28 | A/D 8x12b | ECANbus, I2C, LINb.. | 439 |
| PIC18F26K42-E/SS | 64KB | 4K | 25 | SSOP-28 | A/D 24x12b; D/A 1x5b | I2C, LINbus, SPI, .. | 3,655 |
| PIC18F26Q83-I/SS | 64KB | 8K | 25 | SSOP-28 | A/D 24x12b SAR; D/.. | CANbus, I2C, LINbu.. | 113 |
| PIC18F26K80-E/SO | 64KB | 3.6K | 24 | SOIC-28 | A/D 8x12b | ECANbus, I2C, LINb.. | 149 |
| PIC18F26Q43-I/SP | 64KB | 4K | 25 | DIP-28 | A/D 24x12b; D/A 1x8b | I2C, LINbus, SPI, .. | 389 |



