PIC18LF2420-I/ML

Microcontrollers Overview

The PIC18LF2420-I/ML is a low-voltage, 8-bit microcontroller based on the PIC18 core. It features 16 KB of Enhanced Flash program memory and 768 bytes of SRAM. The device supports an operating frequency up to 40 MHz with a wide voltage range of 2.0V to 5.5V. It includes a 10-bit Analog-to-Digital Converter with 10 channels, two CCP modules, and serial communication interfaces including MSSP (SPI/I2C) and Enhanced USART. Power management is provided by nanoWatt technology, offering Run, Idle, and Sleep modes.

Microcontrollers Feature Summary

• Incorporates nanoWatt Technology for significant power reduction across multiple operational modes.
• Features an optional extended instruction set designed to optimize re-entrant code in high-level languages.
• Includes self-programmability capabilities allowing software-controlled updates via a protected boot block.
• Provides flexible oscillator options including an internal block with PLL for clock speeds up to 32 MHz without external crystals.

Microcontrollers Applications

• Battery-powered embedded systems requiring low standby current
• Industrial control applications utilizing RS-232 or LIN bus protocols
• Motor control designs using PWM outputs from CCP modules
• Data acquisition systems employing the 10-bit A/D converter

Microcontrollers Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm that the 'LF' designation aligns with the system's voltage requirements, as it specifies the 2.0V to 5.5V operating range. Ensure compatibility with existing PCB footprints for the QFN-28 package before finalizing procurement.

Microcontrollers Selection Notes

Select this component when a balance of moderate program memory size and low-voltage operation is required. It is suitable for designs needing multiple I/O lines and analog inputs but lacking space for larger packages. Consider the 40 MHz maximum speed against the power consumption constraints of the application environment.

Microcontrollers Part Context

This part belongs to the PIC18(L)Fxx20 family, which shares architectural similarities with other members like the PIC18LF2520 and PIC18LF4420. The primary distinctions within this family involve variations in Flash memory capacity, number of available I/O ports, and the presence of additional peripherals such as the Parallel Slave Port found in larger pin-count devices.

Microcontrollers Replacement Considerations

PIC18LF2520-I/ML offers increased program memory while maintaining the same package and pinout.

Microcontrollers FAQ

Does the PIC18LF2420 support In-Circuit Debugging?

Yes, the device supports In-Circuit Debug (ICD) via two dedicated pins, allowing for development and testing without removing the chip from the circuit.

What is the function of the High/Low-Voltage Detect module?

The HLVD module allows the user to configure a threshold voltage level. If the supply voltage drops below or rises above this set point, an interrupt can be generated to handle power management safely.