PIC18LF67K40T-I/MR

Microcontrollers Overview

The PIC18LF67K40T-I/MR is a 64-pin microcontroller in the PIC18(L)F67K40 family, utilizing the PIC18 core with an 8-bit data bus. It features 128 kB of Program Flash Memory, 3562 bytes of Data SRAM, and 1024 bytes of Data EEPROM. The device operates at a maximum clock frequency of 64 MHz and supports an operating voltage range of 1.8 V to 3.6 V. It includes 47 external ADC channels, three comparators, a 5-bit DAC, and five EUSART modules. The component is housed in a QFN-64 package and is rated for industrial temperatures from -40°C to +85°C.

Microcontrollers Feature Summary

• Integrates eXtreme Low-Power (XLP) technology to minimize active and sleep power consumption through multiple idle modes and peripheral module disable capabilities.
• Features a 10-bit Analog-to-Digital Converter with Computation (ADCC) that automates signal analysis tasks such as averaging, filtering, and threshold comparisons.
• Includes Core Independent Peripherals (CIPs) like the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and Cyclic Redundancy Check (CRC) to reduce CPU load.
• Provides flexible pin mapping via the Peripheral Pin Select (PPS) module, allowing digital I/O signals to be assigned to various device pins.

Microcontrollers Applications

• General-purpose embedded control systems requiring low-power operation
• Advanced touch sensing applications utilizing automated capacitive voltage divider techniques
• Industrial monitoring systems requiring reliable data memory scanning and fail-safe clock monitoring
• Battery-powered devices leveraging extreme low-power sleep modes

Microcontrollers Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm the 'I' suffix corresponds to the industrial temperature range (-40°C to +85°C). Ensure the 'MR' suffix matches the required 64-pin QFN package type. Cross-reference the manufacturer part number with official Microchip documentation to validate revision levels and compliance status before procurement.

Microcontrollers Selection Notes

Select this microcontroller for designs requiring high computational performance combined with extensive analog integration. The 128 kB flash capacity supports complex firmware, while the ADCC module simplifies signal processing tasks. Consider the 1.8 V to 3.6 V operating range for low-voltage battery applications. Evaluate the need for multiple serial interfaces, as the device provides five EUSART modules and two MSSP modules for versatile communication requirements.

Microcontrollers Part Context

This component belongs to the PIC18(L)F67K40 family of 64-pin microcontrollers. It shares architectural similarities with the PIC18F67K40 but differs in operating voltage and power characteristics. The family emphasizes high-endurance memory and core-independent peripherals. Other members include variants with different memory sizes and pin counts, such as the PIC18LF66K40 and PIC18LF27K40.

Microcontrollers Replacement Considerations

The PIC18LF67K40-I/MR is a non-tape variant of the same device. The PIC18F67K40 series offers similar functionality but supports a wider voltage range up to 5.5 V. Verify pin compatibility and software configuration when substituting between LF and F series devices or different package types within the same family.

Microcontrollers FAQ

What is the function of the ADCC module?

The Analog-to-Digital Converter with Computation (ADCC) automates mathematical functions on input signals, including averaging, filtering, oversampling, and automatic threshold comparisons, reducing application complexity.

How does the Peripheral Pin Select (PPS) module work?

The PPS module allows digital peripheral inputs and outputs to be mapped to various device I/O pins, providing design flexibility in routing signals without changing the physical layout.

What power-saving modes are supported?

The device supports Doze mode for different CPU/peripheral cycle rates, Idle mode where the CPU is halted but peripherals run, Sleep mode for lowest power consumption, and Peripheral Module Disable (PMD) to selectively turn off unused hardware.