NXP Semiconductors K32 L2 Microcontrollers

NXP Semiconductors K32 L2 Microcontrollers (MCU) feature a low power Arm® Cortex®-M0+ core, coupled with a rich set of power-optimized integrated peripherals. The K32 L2 MCUs are part of NXP’s EdgeVerse™ edge computing platform. The K32 L2 MCUs offer memory scalability from 64KB to 512KB of Flash, and from 32kB to 128kB SRAM. These devices also include a high precision mixed-signal integration featuring a high-resolution 16-bit ADC with single and differential pair input mode options, and a 12-bit DAC with DMA support, allowing them to offload the core and leave it available to perform other important tasks.

The K32 L2 MCU family is complemented by a set of low-power serial peripherals supporting asynchronous operation in low-power modes, SPI interfaces, I²C, USB full-speed 2.0 supporting crystal-less operation, and the NXP FlexIO module supporting emulation of additional UART, SPI, I²C, PWM, and other serial modules. Additional features, such as a segment LCD interface supporting up to 24x8 or 28x4 segments, have been integrated to address different applications in the consumer, IoT, and industrial spaces.

Features

Ultra Low Power
- Low-power Arm Cortex-M0+ core
- Multiple low-power modes enable the reduction of dynamic power consumption
- Low-power serial peripheral interfaces supporting low-power operation modes without waking up the core
On-Chip Memory
- 64KB to 512KB Flash Memory
- 32KB to 128KB SRAM Memory
- 16KB to 32KB ROM Memory with integrated bootloader
Connectivity and Communications
- USB 2.0 Full Speed integrated with low-voltage regulator
- 4 to 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 the capability of emulating multiple serial interfaces
- Segment LCD support up to 24x8 or 28x4 segments (K32 L2B only)
Human Machine Interface (HMI)
- Capacitive touch sense interface supporting up to 16 external electrodes (K32 L2A only)
- GPIO with pin interrupt support

Mixed-Signal
- 16-bit ADC module with high-accuracy internal voltage reference (V_ref)
- Up to two High-speed analog comparators containing a 6-bit DAC for programmable reference input
- One 12-bit DAC
- 1.2V/2.1V 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
Security (K32 L2A only)
- Cryptographic acceleration unit supporting acceleration of DES, 3DES, AES, MD5, SHA-1 and SHA-256 algorithms
- Hardware-accelerated True Random Number Generator