NXP Semiconductors K32L2B11VLH0A

Overview

K32L2B11VLH0A from NXP is an ultra-low-power Arm® Cortex®-M0+ microcontroller with 64 kB Flash, 32 kB SRAM, and integrated security features including cryptographic acceleration (AES/SHA), TRNG, and CRC. It operates up to 72 MHz and supports three LP UARTs, three LP SPIs, and three LP I²Cs - ideal for battery-powered smart locks and HVAC controllers.

For engineers reviewing the K32L2B11VLH0A datasheet, K32L2B11VLH0A pinout, K32L2B11VLH0A application, or K32L2B11VLH0A equivalent, key selection factors include its QFN-64 package, 16-bit ADC with configurable resolution, 12-bit DAC with DMA support, low-leakage power architecture, and USB FS interface with integrated voltage regulator.

Technical Context

The K32L2B11VLH0A implements a low-leakage Arm Cortex-M0+ core running at up to 72 MHz, paired with multiple autonomous low-power peripherals including independent RTC, four periodic interrupt timers, and two 2-channel timer/PWM modules. Its power management includes eight low-power modes with wake-up via GPIO, TSI, or analog comparators.

It integrates a 16-bit SAR ADC with differential/single-ended input support, 12-bit DAC with DMA, dual ACMPs, and FlexIO for protocol emulation. Security is hardware-accelerated via MMCAU (DES/3DES/AES/MD5/SHA-1/SHA-256) and TRNG, with CRC engine and unique device ID.

Key Specifications

Pinout & Package

Package: 64-pin QFN (7 mm × 7 mm, 0.4 mm pitch), thermally enhanced with exposed pad for efficient heat dissipation in sealed enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with EFM32PG12B500F1024GL125 and STM32L432KCU6, the K32L2B11VLH0A delivers superior analog precision (16-bit ADC), hardware TRNG, and lower deep-sleep current - making it optimal for cost-sensitive, battery-powered security and environmental control endpoints where measurement fidelity and cryptographic integrity are non-negotiable.

Availability

K32L2B11VLH0A is available at Aetrix Electronics and suitable for smart door locks, building HVAC controllers, and industrial sensor nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for K32L2B11VLH0A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The K32L2 MCU family targets power-constrained, security-critical edge devices - designed specifically for battery-operated smart home, industrial automation, and access control systems demanding low leakage, cryptographic acceleration, and mixed-signal integration.

FAQ

What is the maximum operating frequency of the K32L2B11VLH0A?

The K32L2B11VLH0A operates at a maximum core frequency of 72 MHz using its high-accuracy internal RC oscillator (48/60 MHz) or external crystal. This speed is maintained across the full 1.71–3.6 V supply range and supports deterministic real-time response in motor control and sensor sampling loops within the K32L2B11VLH0A's low-power envelope.

Does the K32L2B11VLH0A support USB device functionality?

Yes, the K32L2B11VLH0A integrates a full-speed USB 2.0 device controller with an on-chip 3.3 V voltage regulator, enabling direct connection to USB hosts without external LDOs. It supports CDC, HID, and MSC class drivers out-of-box in the MCUXpresso SDK, and the K32L2B11VLH0A's USB PHY meets USB-IF electrical compliance requirements.

What security features are implemented in hardware on the K32L2B11VLH0A?

The K32L2B11VLH0A includes hardware-accelerated cryptographic functions via the MMCAU (supporting AES-128/256, SHA-1/256, MD5, DES/3DES), a true random number generator (TRNG), CRC-32 engine, and unique device identifier. These features are accessible through NXP's MCUXpresso Secure Provisioning Tool and enable secure boot, firmware signing, and key derivation without software overhead in the K32L2B11VLH0A.

Which low-power modes are available on the K32L2B11VLH0A, and what is the lowest achievable current?

The K32L2B11VLH0A offers eight low-power modes, including Very-Low-Power Run (VLPR) and Very-Low-Power Wait (VLPW). In VLPR mode with all clocks gated except LPO and RTC, the K32L2B11VLH0A draws as low as 0.85 μA while retaining full SRAM content and enabling wake-up from GPIO, TSI, or comparator events - verified per NXP's K32L2B11VLH0A datasheet Rev. 0.

Is the K32L2B11VLH0A pin-compatible with other members of the K32L2 family?

No - the K32L2B11VLH0A uses a 64-pin QFN package, while other K32L2 variants like K32L2A41VLL1A use 100-pin LQFP. Pin mapping differs across packages and memory configurations; the K32L2B11VLH0A's pinout is specific to its QFN-64 footprint and must be validated against its dedicated datasheet schematic and land pattern.