MCX A5 Series: 240 MHz Arm® Cortex-M33 MCUs with Advanced Connectivity, Security and Rich Integration

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The MCX A5 devices are scalable microcontrollers in the MCX A Series designed for high-performance motor control and connected embedded control.

Optimized for connected industrial and secure edge applications, MCX A5 combines a 240 MHz Arm® Cortex®-M33 core with up to 2 MB Flash and 640 kB SRAM with advanced connectivity, rich analog integration, versatile serial interfaces and enhanced security capabilities. Integrated 10/100M Ethernet MAC and 10BASE-T1S digital PHY helps simplify industrial networking, delivering the performance and integration needed to build reliable, connected and secure next-generation industrial and IoT systems.

The MCUXpresso Developer Experience provides software tools, application examples and expansion resources to support development, including the Expansion Board Hub (EBH) for add-on boards and the Application Code Hub (ACH) for software examples, with evaluation available through the FRDM-MCXA577 development boards to simplify prototyping and feature exploration.

Block Diagram

MCX A5

MCX A5 Arm® Cortex-M33 MCUs
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Features

Core and Performance

  • Arm Cortex-M33 up to 240 MHz with 988.8 CoreMark (4.12 CoreMark/MHz)
  • FPU, DSP, MPU and TrustZone support
  • SmartDMA co-processor

Memory

  • Up to 2 MB dual-bank Flash with ECC and read-while-write
  • 16 kB cache engine
  • Up to 640 kB SRAM, configurable as up to 64 kB RAM with ECC
  • 24 kB RAM retained down to VBAT mode

Security

  • Enhanced security with secure boot, secure firmware update, secure debug and life cycle management, hardware crypto acceleration, key management and PQC-capable security support
  • Designed with a security architecture targeting PSA Level 3 and SESIP Level 3 certification

Serial Interfaces

  • Up to 6x LPUART
  • Up to 5x LPI2C
  • Up to 6x LPSPI
  • Up to 4x I3C
  • Up to 1x FlexIO

Connectivity

  • Up to 1x USB High-Speed Host/Device with on-chip HS PHY
  • Up to 2x CAN FD
  • Up to 1x FlexSPI
  • eSPI
  • TSI

Ethernet Connectivity

  • Up to 1x 10BASE-T1S DPHY
  • Up to 1x Ethernet MAC can support MII / RMII / Ethernet interface depending on device configuration

Analog

  • Up to 2x 16-bit ADC
  • Up to 2x 12-bit DAC
  • Analog comparators
  • Voltage reference
  • Integrated temperature sensor

Timers and Control Peripherals

  • Up to 5x 32-bit timers
  • Low-power timer
  • Frequency measurement
  • Up to 2x Windowed watchdog timers
  • Wake timer
  • Micro-tick timer
  • OS event timer
  • RTC
  • PWM / event timing resources

GPIO and Packages

  • Up to 134 GPIOs
  • Up to 4x high-drive 20 mA I/Os
  • WFBGA169
  • LQFP144
  • LQFP100

Power and Operating Range

  • 1.71 V to 3.6 V operating voltage
  • 1.2 V independent I/O supply support
  • Low-power modes
  • Wake-up sources down to deep power-down mode
  • Operating temperature range up to 125°C junction temperature

Documentation

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Compact List

Design Resources

Hardware

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