PIC18F44K22-I/ML

Microcontrollers Overview

The PIC18F44K22-I/ML is an 8-bit microcontroller from the PIC18(L)F2X/4XK22 family, manufactured by Microchip Technology. It features a high-performance RISC CPU with up to 16 MIPS operation and operates at clock frequencies up to 64 MHz using a 4x PLL. The device includes 16 Kbytes of Flash program memory, 768 bytes of SRAM, and 256 bytes of Data EEPROM. It provides 36 I/O pins in a 44-pin QFN package and supports voltage ranges from 2.3V to 5.5V.

Microcontrollers Feature Summary

• Incorporates XLP technology for significant power reduction during operation through alternate run modes and multiple idle states.
• Features a flexible oscillator structure with a precision internal block and PLL, enabling clock speeds up to 64 MHz without external components.
• Includes analog peripherals such as a 10-bit ADC, two comparators, a DAC, and a CTMU module for capacitive touch sensing.
• Supports self-programmability under software control and offers an extended instruction set optimized for re-entrant code.

Microcontrollers Applications

• High-performance, power-sensitive embedded applications
• Industrial control systems requiring low-power operation
• Consumer electronics utilizing capacitive touch interfaces

Microcontrollers Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature range and 'ML' denotes the QFN-44 package. Confirm RoHS compliance status via official datasheets or manufacturer documentation before procurement. Ensure design compatibility with the 2.3V to 5.5V operating voltage range.

Microcontrollers Selection Notes

Select this component when 16 Kbytes of Flash and 768 bytes of RAM are sufficient for application requirements. Consider the 44-pin QFN package for space-constrained designs. Evaluate the need for 36 I/O pins and 30 ADC channels against alternative family members like the PIC18F24K22 if fewer resources are needed.

Microcontrollers Part Context

This device belongs to the PIC18(L)F2X/4XK22 family, which shares core architecture but varies in memory size, I/O count, and package options. The 'F' variant supports 2.3V to 5.5V operation, while the 'LF' variant supports 1.8V to 3.6V. All family members share identical peripheral sets except for quantity variations.

Microcontrollers Replacement Considerations

PIC18LF44K22-I/ML: Same pinout and features but operates at lower voltage (1.8V-3.6V).

Microcontrollers FAQ

Does the PIC18F44K22 support USB communication?

No, the PIC18F44K22 does not include a built-in USB module. It supports serial communication via two MSSP modules (SPI/I2C) and two EUSART modules.

What is the maximum operating frequency of the internal oscillator?

The internal oscillator block provides a precision 16 MHz source. When combined with the 4x Phase Lock Loop (PLL), the system can achieve performance up to 64 MHz.

How many analog input channels are available on the PIC18F44K22?

The device features a 10-bit ADC with up to 30 external channels, including internal FVR and DAC channels.