Ultra-Low-Power, Highly Integrated MCU

K32-L2

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The K32 L2 MCU family’s low-leakage architecture, combined with its power-optimized peripherals and security features (such as cryptographic acceleration technology, cyclic redundancy check and a true random number generator), make it ideal for consumer, industrial and IoT applications requiring a low-priced, power efficient option with longer battery life.

This family includes a low power Arm® Cortex®-M0+ core and with options scaling from 64 KB to 512 KB Flash and from 32 kB to 128 kB SRAM, the K32 L2 family offers a wide range of memory resources to fit different application tasks within a small-form factor, low power, and highly integrated design.

Block Diagram

K32 L2 MCU Family Block Diagram

K32 L2 MCU Family Block Diagram
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Features

Ultra Low-Power

  • Low-power Arm® Cortex®-M0+ core
  • Multiple low-power modes enabling the reduction of dynamic power consumption
  • Low-power serial peripheral interfaces supporting low-power operation modes without waking up the core

On-Chip Memory

  • 64 – 512 KB Flash Memory
  • 32 – 128 KB SRAM Memory
  • 16 – 32 KB ROM Memory with integrated bootloader

Connectivity and Communications

  • USB 2.0 Full Speed integrated with low-voltage regulator
  • 4-8 channel DMA for peripheral and memory servicing with reduced CPU loading
  • Up to three I2C, up to three LPUART and up to three SPI serial interfaces with DMA support
  • FlexIO interface with capability of emulating multiple serial interfaces
  • Segment LCD supporting up to 24x8 or 28x4 segments*

Mixed-Signal

  • 16-bit ADC module with high accuracy internal voltage reference (Vref)
  • Up to two High-speed analog comparator containing a 6-bit DAC for programmable reference input
  • One 12-bit DAC
  • 1.2/2.1 V internal voltage reference

Timers

  • One 6-channel Timer/PWM module-
  • Two 2-channel Timer/PWM modules
  • Up to two low-power timer
  • Up to two Periodic interrupt timer
  • Real time clock

Human Machine Interface (HMI)

  • Capacitive touch sense interface supporting up to 16 external electrodes**
  • GPIO with pin interrupt support

Security**

  • Cryptographic acceleration unit supporting acceleration of DES, 3DES, AES, MD5, SHA-1 and SHA-256 algorithms
  • Hardware accelerated True Random Number Generator

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