MCX L25 Ultra-Low-Power MCUs with Dedicated Sense Domain

MCX-L25
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MCX L25 Series Cortex®-M33 MCUs extends battery life for edge devices operating low-power sensors and HMI. They feature an Arm® Cortex®-M33 core running up to 96 MHz with an autonomous sense domain powered by an Arm® Cortex®-M0+ core up to 10 MHz for continuous data acquisition and processing in power-efficient standalone operation including ADC, Analog Compare, I²C, UART and Segment LCD. The dual domain architecture also enables physical separation of applications, on top of code isolation provided by TrustZone on the Cortex®-M33 core, simplifying the development and certification of metrology applications.

MCX L Series features EdgeLock® security capabilities for secure boot and crypto accelerators to meet demanding requirements for wired and over-the-air low power transactions. The devices are supported by the MCUXpresso Developer Experience to optimize, ease and help accelerate embedded system development.

Block Diagram

MCX L25 Block Diagram

MCX-L25X
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MCX L25 Superset Features

Core Platform

  • Arm® Cortex®-M33 up to 96 MHz & Arm® Cortex®-M0+ up to 10 MHz

Memory

  • Up to 512 KB on-chip flash program memory with flash accelerator, 4 KB low-power cache and ECC (support one bit correction and two bits detection).
  • Flash minimum programming size is 16 bytes.
  • Support Flash Swap with 8 KB granularity.
  • Up to 128 KB SRAM, and an additional 8 KB with ECC capability (supports one-bit correction and two-bit detection)
  • All RAM can be retained down to deep power down mode

Peripherals

  • Analog
    • Single-ended 16-bit ADC with sample rate of 2.1 Msamples/sec in 16-bit mode, support 12-bit mode with increased bandwidth at 2.5 MSamples/sec
    • Integrated temperature sensor
    • A second 12-bit ADC of 500 ksamples/sec is functional down to Deep Power Down mode
    • Two High-speed Comparators with 8 input pins and a 8-bit DAC as internal reference, one comparator is functional down to Deep Power Down mode, can be used as a wake-up source from low-power modes
  • Timers
    • Three 32-bit standard general-purpose asynchronous timers/counters, each timer supports up to four capture inputs and four compare outputs; specific timer events can be selected to generate DMA requests
    • Up to 2x QTimer (Quad Timer) cascadable with capture and compare capabilities (can be used for quadrature position encoder) is functional down to Deep Power Down mode
    • LPTimer (Low Power Timer)
    • Frequency measurement timer
    • Windowed Watchdog Timer
    • MicroTick timer that runs from the 1MHz clock. This can wake up the device from reduced power modes up to deep-sleep with flash off, with extremely low power consumption
    • 42-bit free running OS timer as a continuous timebase for the system, available in any reduced power mode
  • Communication Interfaces
    • 2x LPSPI (Low Power SPI) modules, supporting up to 50 MHz operation frequency in master mode
    • Up to 3x LPI2C (Low Power I2C) supporting Standard, Fast, Fast+ and Ultra-Fast modes. 1 additional LPI2C is functional down to Deep Power Down mode
    • Up to 3x LPUART (Low Power UART), provides asynchronous, serial communication capabilities. One additional LPUART is functional down to Deep Power Down mode
  • Human Machine Interfaces
    • 1x Segment LCD up to 56 LCD pins with programmable LCD frame frequency and blink mode is functional down to Deep Power Down mode
    • 1x Keypad supporting up to 8x8 pad matrix is functional down to Deep Power Down mode

MCUXpresso Developer Experience

Security

  • Glitch attack resistant keyed access (Glikey)
  • MBC controls the Read, Write and Execute permission of each flash block, and the configuration can be locked
  • 128-bit unique device serial number for identification (UUID)
  • Code Watchdog for detecting code flow integrity
  • 3 Levels Read Out Protection, allows the user to enable different levels of protection in the system for different Lifecycles
  • Flash programming through in-system programming (ISP) commands over LPUA+B28RT interface with auto baud

Packaging

  • 100LQFP, 14x14mm and 184VFBGA, 9x9mm

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