New Product Introduction

NXP K32 L3 MCU Family

The K32 L3 MCU series is a family of dual-core, highly secure and energy-efficient MCUs ideal for applications in building automation, industrial and smart home.

Top view of NXP's Freedom Development Board

The K32 L3 MCU family represents the third generation of Kinetis. It delivers significant improvements in power optimization and security advancements to address a wide range of industrial and IoT applications. Low-leakage, power-optimized peripherals, a DC-DC converter, and security features like authenticated boot, secure update and tamper detection pins round out
the K32 L3 MCU family.

Based on a high-performance Arm® Cortex®-M4 processor and a low-power Cortex-M0+ processor (optional), the K32 L3 MCU is ideal for applications that require a host MCU and a low-power MCU. With up to 1.25 MB flash and up to 384 kB SRAM, the K32 L3 MCU family offers ample memory resources to address different applications tasks in a small form factor, low power, and highly secure design.

Target applications

Building automation
  • Security and access control
  • Building control and monitoring
  • Building HVAC control
  • Secure applications
  • Factory automation
  • Robotics
Smart home
  • Door locks
  • Smart thermostats
  • Lighting control
  • Security systems

Key features

Core platform
  • Cortex-M4 core up to 72 MHz
  • Cortex-M0+ core up to 72 MHz (optional)

High Security (optional on Cortex-M$ version)

  • Cryptographic Acceleration Engine
    • Secure Key Storage
    • Public Key (ECC)
    • Symmetric (AES)
    • Hashing (SHA-256)
  • Standalone True Random Number Generator
  • Resource Domain Controller (dual core only)
  • Built-in Secure Boot
  • Up to 4 x Tamper pins


  • Up to 1.25 MB FLASH
  • Up to 384 kB RAM
  • 48 kB ROM


  • USB 2.0 Full-speed controller and transceiver
  • 1 x 32ch FlexIO supporting emulation of UART, I2C, SPI, I2S, Camera IF, LCD RGB, PWM/Waveform generation
  • Up to 4 x low power UART
  • Up to 4 x low power I2C
  • Up to 4 x 16-bit low power SPI
  • 1 x EMVSIM module supporting the ISO-7816
  • 1 x Serial Audio Interface (SAI)
  • 1 x Secure Digital Hardware Control (SDHC)
  • Parallel External FlexBus Interface (RAM, ROM, simple slave devices)


  • 1 x 12-bit ADC
  • Up to 2 x Low power comparator with 6-bit DAC
  • 1 x 12-bit low power DAC
  • Dual output DC/DC Convertor 
  • 1.2V / 2.1V dual-range voltage reference


  • Up to 2 x 6 ch., 2 x 2 ch. Timer/PWM Modules
  • Up to 2 x 4 ch. Low Power Programmable Interrupt Timer
  • Up to 3 x Low Power Timers
  • Real Time Clock (RTC)
  • 1 x 56-bit Timestamp


  • 176 VFBGA, 9mm x 9mm x 0.86mm, 0.5mm pitch
  • 144 LQFP, 20mm x 20mm x 1.6mm x 0.5mm pitch
  • 121 MBGA, 8mm x 8mm x 1.4mm, 0.65mm pitch
  • 100LQFP, 14mm x 14mm x 1.7mm, 0.5mm pitch
  • 64QFN, 9mm x 9mm x 0.85mm x 0.5mm pitch

Temp range

  • -40°C to + 105°C

Block diagram

Block diagram for K32 L3 MCU showing components for core platform, system control, memory, clocks, timers, communication and hmi, security and analog

Enablement: FRDM-K32L3A6 Freedom Development Board

  • Includes K32L3A60VPJ1A with a high-performance Arm® Cortex®-M4 processor and an optional low-power Cortex-M0+ processor
  • Supports all power supply configurations
  • Serial Flash 
  • On board NXP FXOS8700CQ digital sensor, 3D Accelerometer (±2g/±4g/±8g) + 3D Magnetometer
  • OpenSDA and SWD debug
  • Full MCUXpresso software and tools support


Related Documents

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