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Microchip Technology nanoWatt XLP Microcontrollers

Microchip nanoWatt XLP MCUs
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Extreme Low Power Microcontrollers

Microchip Technology Extreme Low Power PIC MCUs featuring nanoWatt XLP™ Technology are useful in designing embedded applications with extremely low power consumption. Changes to nanoWatt technology introduced in April 2009 are collectively known as nanoWatt XLP™ Technology. This version represents a significant reduction of power consumption over the original nanoWatt Technology. To meet this standard, a Microchip Technology PIC microcontroller is required to have typical current consumption of less than the following: 100 nA for Power Down current (IPD), 800 nA Watchdog Timer current (IWDT), and 800 nA Real-time Clock & Calendar (IRTCC). Currently, nanoWatt XLP Technology is available in the most recent members of Microchip's microcontrollers, including PIC12, PIC16, PIC18, and PIC24F.

The Powercast Lifetime Power Energy Harvesting Kit features a Microchip PIC24F XLP MCU.


The Microchip Technology PIC18F K90 is the industry's first and only low-power, 5V 8-bit microcontroller (MCU) family that includes an on-chip LCD driver module and 12-bit analog-to-digital converter (ADC).
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XLP Features
Part Number Data Sheet Program Memory Size Data RAM Size Operating Supply Voltage

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Power Consumption

Microchip's nanoWatt Technology contains extensive features which are designed to reduce overall power consumption by providing flexible, yet powerful power management solutions for your application.

  • Static power is the power consumed while the application is not active (Sleep). This power dissipation comes from transistor leakage inherent in CMOS processes, real-time clocks necessary for time keeping which run during sleep, system voltage supervisors, and watch-dog timer circuits.
  • Active power is the power consumed while the application is active and executing tasks. This power dissipation is dominated by CMOS switching currents which are sensitive to execution frequency and voltage. Other power is consumed by the peripherals running on the product (like ADCs), or the state of the output pins.
  • Average power is the power consumed when operating in both static and active operation states over time. The average power is affected by the amount of time spent in each state, as well as the time required to switch between sleep and active. This transfer time is referred to as fast wake-up.

Application Notes
AN1267: Introduction to nanoWatt and nanoWatt XLP Technologies
DS01146B: PIC® MCU Tips and Tricks with nanoWatt XLP Technology

Reference Manual Chapters
PIC24F Reference Manual, Sect. 09: WDT
PIC24F Reference Manual, Sect. 29: RTCC
PIC24F Reference Manual, Section 39: Deep Sleep
PIC24F Reference Manual, Sect. 40: Reset with Programmable BOR
  • Microchip Technology
  • Semiconductors|IC-MCU/MPU