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PIC24F ‘GB’ Family of Microcontrollers

USB | Low Power | Dual Partition Flash | Segment LCD | Scalable

With the Internet of Things (IoT) market continuing to grow by billions of devices each year, designers increasingly need lower-power MCUs that will enable these applications. The PIC24F ‘GB’ family of microcontrollers (MCUs) are low-power, high-performance devices that offer up to 1 MB of dual-partition Flash memory with live update capabilities. In addition to ultra-low-power performance, these new devices feature Full-Speed USB host and device, high-speed DMA, 12-bit analog, AES, capacitive touch sensing, built in op amps and much more.

Many embedded hardware systems, such as power supplies in server farms, large database networks, as well as industrial and medical systems, handle extremely critical applications that cannot afford to go offline at any cost.  Despite being very well designed, bug fixes and additional features are constantly being requested every day by end users. To update the firmware on these systems without taking them offline is crucial and vital in today’s world.  Devices with dual-partition flash with Live Update capability allow execution from one part of the memory while updating your code from the other, enabling you to update your firmware in the field or remotely Over-The-Air (OTA) without having to shut down your application.

Key Features of the PIC24F ‘GB’ Family

Key Feature Description
USB On-The-Go (OTG) compliant, dual-role capable; can act as either host or peripheral.
Low Power Features eXtreme Low Power (XLP) technology with sleep currents as low as 30 nA with flexible wake-up sources and run currents down to 150 μA / MHz, enabling power-efficient applications.
Segment LCD Integrated display controller with up to 512 segments with capability of operating in sleep mode.
Flexible Peripherals Wide range of basic and specialized peripherals including Core Independent Peripherals (CIPs) such as Crypto Engine, Configurable Logic Cells (CLC), RTCC, PWMs and Peripheral Trigger Generator (PTG) designed to take the load off the Central Processing Unit (CPU) and reduce the overall energy requirement.
Dual-Partition Flash with Live Update Capable of holding two independent software applications, including bootloader permitting simultaneous programming of one partition while executing application code from the other while allowing run-time switching between active partitions.
DMA Dedicated DMA controller supporting both memory and peripheral data transfers thereby reducing CPU workload.
Scalable Flash memory densities range from 16 KB to 256 KB and RAM ranging from 4-32 KB with packages ranging from 28- to 100-pin options.

Looking Beyond Low-Power MCUs

As more wearables, wireless sensor networks and other Internet of Things (IoT) enabled smart devices are getting powered from battery, energy conservation becomes paramount. Today’s connected applications must consume little power and, in extreme cases, last for up to 20 years while running from a single battery. To enable applications like these, products with Microchip’s eXtreme Low Power (XLP) technology offer the industry’s lowest run and sleep currents.

Target Applications

  • Internet of Things (IoT)
  • Medical fitness devices
  • Industrial automation
  • Battery powered
  • USB digital audio
  • White goods


  • HVAC control
  • Electricity metering
  • Security panels
  • Touch controllers
  • Fingerprint scanners
  • Embedded security

PIC24F ‘GB’ Family Selection Guide

More information on each of the PIC24F ‘GB’ product rows can be viewed by clicking the “Sub-Family” name in the table below.

Standard Key Features: UART, I2C, SPI, Timers, WDT, PWMs, IC/OC, PPS, Comparators

Integrated Analog
User Interface
Secure Data
Sub FamilyPin
Flash ( KB)
DMALow Power/XLP
PIC24FJ64GB00428-4432-64810    ✓✓
PIC24FJ128GB20428-4464-128812✓✓  ✓✓
PIC24FJ256GB41264-12164-2568-1612✓✓Up to 512✓✓
PIC24FJ1024GB61064-100128-10243212✓✓   ✓✓

Parametric Charts

For a more in-depth analysis of our PIC24F ‘GB’ family, use our parametric tables to select the perfect microcontroller for your design.

Innovative Peripherals

Learn more about our rich set of high-performance peripherals which integrate seamlessly with your application reducing cost and development time.

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