NXP Semiconductors
K32L2Ax
Data Sheet: Technical Data
Rev. 3, 02/2021
K32 L2A Microcontroller with 512
K32L2A41VLL1A
K32L2A31VLL1A
K32L2A41VLH1A
K32L2A31VLH1A
KB Flash and 128 KB SRAM
72 MHz Cortex-M0+ based Microcontroller
Supports ultra-low-power Arm based microcontroller with crystal-
less USB feature, large flash and RAM, evolutionary low-power
peripherals and security features. This is an ideal solution for
Sensor Hub applications, Smart Energy, Internet of Things, and
Edge and Concentrator. This device offers:
• 128 KB SRAM for data processing and connectivity stack
• Ultra low dynamic and static power consumption with smart
peripherals for low power applications
• Advanced LPI2C and LPSPI supporting asynchronous
DMA master data transition
100 LQFP
64 LQFP
• FlexIO for flexible and high performance interfaces
• Crypto acceleration with AES/DES/3DES/MD5/SHA and
TRNG
14x14 mm P 0.5 mm 10x10 mm P 0.5 mm
• USB FS 2.0 device operation without need of external
crystal
• USB FS OTG controller, capable of USB host or device operation
Core
• Arm® Cortex®-M0+ cores up to 72 MHz in Normal
mode and 96 MHz in High Speed mode
Communication interfaces
• Three 16-bit Low Power Serial Peripheral Interface
(LPSPI) modules
• One EMVSIM module supporting EMV version 4.3,
ISO7816
• Three LPUART modules
• Three LPI2C modules supporting up to 5 Mbit/s
• One FlexIO module emulating UART, SPI, camera
interface, and Motorola 68K/Intel 8080 bus
• USB FS 2.0 device operation without need of
external crystal
Memories
• Up to 512 KB program flash memory
• 128 KB SRAM
• 32 KB ROM with built-in bootloader
System peripherals
• 8-channel DMA controller
• Independent clocked Watchdog
• Low-leakage wakeup unit
• SWD debug interface and Micro Trace Buffer
• Bit Manipulation Engine
• USB FS OTG controller, capable of USB host or
device operation
Analog Modules
• Memory Mapped Divide and Square Root module
(MMDVSQ)
• Cyclic Redundancy Check (CRC) module
• Nested Vector Interrupt Controller (NVIC) supports 32
interrupt vectors
• 16-bit, 24-channel SAR ADC with internal voltage
reference
• Two High-speed analog comparators each
containing a 6-bit DAC and programmable reference
input
• Additional peripheral interrupt support via Interrupt
Multiplexer (INTMUX)
• One 12-bit DAC
• 1.2 V and 2.1 V voltage references (Vref)
Clocks
Timers
• One 6-channel Timer/PWM module
NXP reserves the right to change the production detail specifications as may be
required to permit improvements in the design of its products.