New Product Introduction

NXP LPC55S6x Arm® Cortex®-M33-based MCU with advanced security

The LPC55S6x MCU family builds on the Cortex-M33 introduced with the LPC5500 series

NXP Semiconductors LPC55S6x product image

The LPC55S6x MCU family builds on the Cortex-M33 introduced with the LPC5500 series. This family leverages the Armv8-M to introduce new levels of performance and advanced security, bringing significant signal processing efficiency gains from a DSP accelerator offering a 10x clock cycle reduction. An optional second core offers balance in performance and power efficiency.

In addition, the 40nm NVM based process technology brings cost advantages, broad scalable packages, and memory options; as well as a robust enablement including MCUXpresso and Tools ecosystem, and low-cost development boards.


Key features

  • 32µA/MHz for leading performance efficiency
  • 10x improvement in signal processing
  • Rich integration to secure, sense and connect
  • MCUXpresso Ecosystem with HW & SW scalability


Additional features

The LPC55S6x MCU family leverages the co-processors extensions available in the Cortex-M33 to bring significant signal processing efficiency gains from a DSP accelerator, Powerquad DSP, offering 10x clock cycle reduction over CMSIS-DSP for most computing.

Accessible Security

  • TrustZone-M for asset protection
  • Secure boot and SRAM PUF based key storage for root of trust and provisioning
  • Execution from encrypted images (internal flash)

Breakthrough Performance Efficiency

  • Integrated power management unit with buck DC-DC
  • Dedicated co-processors for signal processing & cryptographic acceleration

Scalable MCU Offering

  • First of next gen LPC5500 MCU Series
  • Scalable package and memory options
  • Low-cost development board with expansion options
  • Robust enablement including MCUXpresso Software/Tools ecosystem

Core Platform

  • Up to 100MHz Cortex-M33
  • TrustZone, MPU, FPU, SIMD


  • DSP Accelerator
  • Crypto Engine


  • Up to 640KB FLASH
  • Up to 320KB RAM
  • 128KB ROM


  • USB HS
  • USB FS
  • SDIO
  • High-Speed SPI
  • Flexcomms SPI, I2C, UART, I2S

Advanced Security Subsystem

  • Protected Flash Region (PFR)
  • AES-256
  • SHA-2
  • SRAM PUF for Key Generation support
  • PRINCE – On-The-Fly Encrypt/Decrypt for flash data
  • RNG


  • ADC
  • Analog Comparator
  • Temp Sensor


  • LQFP100
  • VFBGA98
  • LQFP64 or QFN64


  • Building control and automation
  • Consumer electronics
  • Diagnostic equipment
  • Industrial IoT
  • Machine Learning
  • Secure applications

Available tools 

LPCXpresso55S6x Board (LPC55S69-EVK)

The LPCXpresso55S69 development board provides the ideal platform for evaluation of and development with the LPC55S6x MCU based on the Arm® Cortex®-M33 architecture. The board includes a high performance on-board debug probe, audio subsystem and accelerometer, with several options for adding off-the-shelf add-on boards for networking, sensors, displays and other interfaces.

The LPCXpresso55S69 is fully supported by the MCUXpresso suite of tools, which provides device drivers, middleware and examples to allow rapid development, plus configuration tools and an optional free IDE. MCUXpresso software is compatible with tools from popular tool vendors such as Arm and IAR, and the LPCXpresso55S69 may also be used with the popular debug probes available from SEGGER and P&E Micro.


  • LPC55S69 dual core Arm® Cortex®-M33 microcontroller running at up to 100 MHz
  • Onboard, high-speed USB, Link2 debug probe with CMSIS-DAP and SEGGER J-Link protocol options
  • UART and SPI port bridging from LPC55S69 target to USB via the onboard debug probe
  • Hardware support for external debug probe
  • 3 x user LEDs, plus Reset, ISP (3) and user buttons
  • Micro SD card slot (4-bit SDIO)
  • NXP MMA8652FCR1 accelerometer
  • Stereo audio codec with line in/out
  • High and full speed USB ports with micro A/B connector for host or device functionality
  • MikroEletronika Click expansion option
  • LPCXpresso-V3 expansion site compatible with Arduino UNO
  • PMod compatible expansion / host connector

NXP LPC55S6x Arm® Cortex®-M33-based MCU | EBV Elektronik

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