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New PIC24F MCUs Feature Low-power Animated Display Driver for Battery-powered Devices


Low-power MCU family offers power-saving peripherals, hardware safety and secure code protection


System developers of battery-powered and other power-conscious designs with and without LCD displays can now easily add an array of innovative features using a new line of PIC® eXtreme Low Power (XLP) microcontrollers (MCUs) from Microchip. Packed with 14 types of Core Independent Peripherals (CIPs) that operate outside the Central Processing Unit (CPU) for power savings, the PIC24F GU and GL families of MCUs feature the CIP called LCD with Autonomous Animation.

Click for Larger Image - Microchip Simplifies the Design of Low-Power LCD Applications Most display applications involve a few common animations like periodically alternating between displays and blinking of pixels to indicate operation. By using the integrated LCD driver with autonomous animation, developers can offload most of these simple animation routines from the CPU, allowing animation even in doze, idle or sleep modes for optimal power savings. To assist in quickly designing such display interfaces, the new MCUs come with MPLAB® Code Configurator (MCC) support. This graphical programming environment with LCD display designer helps eliminate the meticulous and time-consuming task of mapping the pins and segments.

“The latest family of PIC MCUs adds new hardware features that improve low-power performance, code protection and reliable operation in applications across multiple segments,” said Joe Thomsen, vice president of Microchip’s MCU16 business unit. “This scalable family of devices enables applications from cloud-connected low-power IoT nodes and sensor systems to automotive, consumer and industrial automation applications and helps developers easily add displays, robustness and security to their designs.”

Click for Larger Image - Microchip PIC24FJ512 PIC Microcontroller The new MCU families are also designed to make it easy to increase the security of an application, whether it is connected to the Internet or a standalone system. Microchip’s CodeGuard™ security Flash protection enables segmenting memory into boot and general segments to implement memory access restrictions. The Flash memory is configurable as One Time Programmable (OTP) via Microchip’s In-Circuit Serial Programming™ (ICSP™) write inhibit feature that disables any further modification of the Flash through external programmers/debuggers. Together with these features, security can be further enhanced using Microchip’s CryptoAuthentication™ devices as companion chips to add secure over-the-air updates and pre-provisioned cloud services. Lastly, the MCUs are supported by CryptoAuthLib, 16-bit bootloader, USB and many application libraries in MCC to significantly reduce development time and complexities.

The integrated hardware safety features of the PIC24F GU and GL families enable reliable operation in harsh environments through Flash Error Correction Code (ECC), Deadman Timer (DMT), Windowed Watchdog Timer (WWDT), Fail-Safe Clock Monitor (FSCM), Configurable High-Low Voltage Detect (HLVD) and Cyclic Redundancy Check (CRC).

Technical Specifications of the PIC24FJ512GU410 Microcontroller

  • Core
    • PIC24J 16-bit 32MHz PIC Microcontroller
    • 512KB Dual Partition Flash Memory
    • 32KB SRAM
  • Segmented LCD Controller with Animation
    • 64 Segments and 8 Commons supporting up to 480 Pixels
    • Core independent autonomous animation: Alternating dual display, blinking and blanking
    • LCD Charge Pump for contrast management in battery-powered applications
    • External bias option for reducing power consumption
    • Operation in power-saving modes
  • Full Speed USB 2.0
    • Configurable as Host, Device or OTG
    • DMA Interface for Data RAM Access
  • Core and Operating Conditions
    • 2.0V to 3.6V, -40°C to 125°C, AEC Q100 Grade 1 qualified, up to 16 MIPS operation
    • Single-cycle instruction execution
    • 16 x 16 Hardware Multiply, and 32-bit x 16-bit Hardware Divider
    • C compiler optimized instruction set system
  • eXtreme Low Power
    • Ultra-low-power operation with sleep current down to nA with full RAM retention
    • A range of power-saving modes to reduce current consumption, while balancing performance: PMD bits, DOZE, Idle, Sleep and Retention Sleep modes
    • A range of Core Independent Peripherals (CIPs) that operate in power saving modes, while off-loading the Central Processing Unit (CPU)
  • Secure Protection Features
    • Flash ‘One Time Programming’ (OTP) by ICSP™ Write Inhibit that offers an ability to disable Flash erase/write/debug operations
    • CodeGuard™ Flash protection to manage memory partitions and access restrictions
    • 120-bit Unique Device ID, 256 bytes User OTP and the above protection schemes make an ideal combination of complementary features to implement security together with the CryptoAuthentication™ devices in a secure application
  • Hardware Safety Features
    • Flash with Error Correction Code (ECC) and Fault Injection for memory integrity check (Single error correction and Double error detection)
    • Dead-Man Timer (DMT) clocked by instruction fetches for monitoring the health of software
    • Windowed WatchDog Timer (WWDT) for system supervision
    • Fail-Safe Clock Monitor (FSCM) for clock fault management
    • Enhanced Programmable Cyclic Redundancy Check (CRC), Programmable High-Low Voltage Detect (HLVD), Brown-out Reset (BOR) and Power-on Reset (POR)
    • Class B Safety Library, IEC 60730
  • Advanced Integrated Analog
    • Up to 24-Channel, 400Ksps, 10/12-Bit Analog-to-Digital Converter (ADC)
    • Low-voltage boost for input
    • Bandgap reference input feature
    • Core Independent windowed threshold compare feature
    • Auto-scan feature
    • Operation in power-saving modes
    • Three Analog Comparators with input multiplexing and programmable reference voltage generators
    • 1 Msps 10-bit Digital-to-Analog Converter (DAC) with Buffered Output
  • Timer/Counters/Output Compare/Input Capture/Pulse Width Modulation
    • 8 x MCCP modules, each with a Dedicated 16/32-Bit Timer
    • 3 x 6-output MCCP modules
    • 5 x 2-output MCCP modules
    • A total of up to 21 x 16-bit timers or 10 x 32-bit dedicated timer/counters
    • Hardware Real-Time Clock Calendar (RTCC) with Timestamping
  • Key Core Independent Peripherals
    • 4 x Configurable Logic Cells (CLCs)
    • 8 x Multiple Capture Compare PWMs (MCCPs)
    • Segmented LCD controller with Core Independent Animation, up to 480 pixels (8 commons x 64 segments)
    • ADC controller with threshold compare and automatic triggers
    • Direct Memory Access (DMA) with 6 channels, supporting UART, SPI, ADC, and more
  • Communication Interfaces
    • 6 x UARTs supporting LIN/J2602 and IrDA®
    • 4 x SPI/I2S, up to 24 MHz operation
    • 3 x I2C Master and Slave w/Address Masking, PMBus™ and IPMI support
  • Clock Management
    • On-chip 8 MHz Fast RC (FRC), and 32 kHz Low-Power RC (LPRC) and Secondary (SOSC) oscillators
    • Programmable PLL with external oscillator clock sources and Reference Clock Output (REFO)
    • Fail-Safe Clock Monitor (FSCM)
    • Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) supporting two-speed start-up
  • Special Features and Debugger Development Support
    • MPLAB Code Configurator (MCC) support
    • Peripheral Pin Select (PPS) for flexible pin mapping
    • Configurable interrupt-on change on all IOs
    • In-Circuit Serial Programming™ (ICSP™) and In-Circuit Emulation (ICE) via 2-pins
    • JTAG Boundary Scan Support


More information on the PIC24GU Microcontrollers can be found on the Microchip Web site at Microchip PIC24GU Microcontroller series page

Note: The Microchip name and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A and other countries. All other trademarks mentioned herein are the property of their respective companies.


The company's Web site address is www.microchip.com
[Reprinted with kind permission from Microchip Corporation - Release Date, 1st October, 2020]