PIC18F26K42T-I/MX

Microcontrollers Overview

The PIC18F26K42T-I/MX is an 8-bit microcontroller from the PIC18(L)F26/27/45/46/47/55/56/57K42 family, featuring a PIC18 core with up to 64 KB of Flash program memory, 4 KB of data SRAM, and 1 KB of data EEPROM. It operates at clock frequencies up to 64 MHz within a voltage range of 2.3V to 5.5V for industrial temperatures (-40°C to +85°C). The device includes a 12-bit ADC with Computation (ADC2), two DMA controllers, vectored interrupts, and multiple communication interfaces including UART, SPI, and I2C.

Microcontrollers Feature Summary

• Features a C Compiler Optimized RISC architecture with up to 64 MHz operating speed.
• Includes two Direct Memory Access (DMA) controllers for hardware-triggered data transfers between memory spaces.
• Integrates a 12-bit ADC with Computation (ADC2) supporting automated touch sensing and signal processing.
• Provides Memory Access Partition (MAP) for configurable boot/app regions and code protection.

Microcontrollers Applications

• Applications requiring advanced capacitive touch sensing via automated CVD techniques
• Systems needing direct memory access for high-speed peripheral-to-memory data movement
• Industrial control environments utilizing Memory Access Partition for bootloader security
• Low-power designs leveraging Doze mode and Peripheral Module Disable features

Microcontrollers Procurement Notes

Verify the specific suffix 'MX' against Microchip's official packaging documentation to confirm the tape-and-reel quantity and reel diameter. Ensure the temperature grade 'I' matches the required -40°C to +85°C operational range for your application environment. Cross-reference the datasheet revision DS40001919G for any updates to electrical characteristics or pin configurations prior to finalizing procurement orders.

Microcontrollers Selection Notes

Select this component when 64 KB of Flash and 4 KB of RAM are sufficient for the application logic. The presence of two DMA controllers makes it suitable for data-intensive tasks without CPU intervention. Consider the 12-bit ADC2 if high-resolution analog input processing or touch sensing capabilities are required. Verify that the 28-pin MX package dimensions fit the target PCB layout constraints compared to SSOP or QFN alternatives.

Microcontrollers Part Context

This part belongs to the PIC18(L)F26/27/45/46/47/55/56/57K42 series, which shares core peripherals like the ADC2, DMA, and MAP features. The 'F' designation indicates a 2.3V-5.5V operating voltage range, distinguishing it from the 'LF' variant which supports 1.8V-3.6V. The 'K42' suffix identifies the specific feature set within the broader K42 family, differentiating it from other members like the K40 or K83 series.

Microcontrollers Replacement Considerations

PIC18F26K42T-I/SS: Same electrical and functional specifications in SSOP-28 package. PIC18F26K42T-I/ML: Same electrical and functional specifications in QFN-28 package. PIC18F26K42-I/MX: Non-tape and reel version in MX package.