NXP Semiconductors MKL25Z32VLH4

Overview

MKL25Z32VLH4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 64-pin LQFP package, featuring 32 KB flash, 4 KB SRAM, USB 2.0 Full/Low-Speed On-The-Go controller with on-chip transceiver and integrated 5 V to 3.3 V regulator, 16-bit SAR ADC, and ultra-low-power operation down to 0.31 µA in VLLS0 mode. It targets battery-powered HMI, sensor nodes, and USB-connected embedded control systems.

For engineers reviewing the MKL25Z32VLH4 datasheet, MKL25Z32VLH4 pinout, MKL25Z32VLH4 application, or MKL25Z32VLH4 equivalent, this page delivers verified technical context, validated low-power specifications, confirmed USB and analog peripheral capabilities, and real-world design guidance for entry-level 32-bit MCU selection in industrial and consumer edge devices.

Technical Context

The MKL25Z32VLH4 implements an ARM Cortex-M0+ core with Bit Manipulation Engine (BME) and Micro Trace Buffer (MTB), executing from zero-wait-state flash memory. Its clock system integrates a Multi-purpose Clock Generator (MCG) supporting FEI, FBE, PEE, and BLPI modes, enabling dynamic switching between high-performance (48 MHz) and ultra-low-power (4 MHz) run states.

System-level power management includes nine configurable low-power modes-VLLS0/1/3, LLS, VLPS, STOP, WAIT, RUN, and VLPR-with hardware-assisted wakeup via Low-Leakage Wakeup Unit (LLWU) and programmable interrupt sources. Peripheral clock gating, voltage regulation, and 90 nm TFS process technology jointly enable sub-µA static current with full state retention and 4 µs wake-up latency.

Key Specifications

Pinout & Package

64-pin LQFP (10 × 10 × 1.4 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with KL26Z32VLH4, MKL25Z32VLH4 omits crystal-less USB and crypto accelerators but retains identical low-power behavior and analog peripherals-making it optimal for cost-sensitive, battery-operated USB device designs. Against STM32F072CBT6, MKL25Z32VLH4 delivers true USB OTG with integrated power regulation and deeper sleep modes, reducing system-level component count and power budget.

Availability

MKL25Z32VLH4 is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, medical wearables, smart home panels, and battery-powered edge controllers requiring stable component supply across extended temperature ranges (–40°C to +105°C).

Supply support for MKL25Z32VLH4 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 leader focused on secure connectivity solutions for automotive, industrial, IoT, and mobile applications, with deep expertise in ARM-based microcontrollers and edge processing.

The Kinetis KL25 family was designed as an entry-level, ultra-low-power 32-bit MCU platform targeting cost-sensitive, battery-operated embedded systems requiring USB connectivity, capacitive touch, and high analog integration-without sacrificing ARM ecosystem compatibility.

FAQ

What is the maximum operating frequency of the MKL25Z32VLH4 core?

The MKL25Z32VLH4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achievable using the Phase-Locked Loop (PLL) with an external crystal or internal reference, and is supported across the full industrial temperature range (–40°C to +105°C) at supply voltages from 1.71 V to 3.6 V. The MKL25Z32VLH4 maintains full peripheral functionality-including USB and ADC-at this speed.

Does the MKL25Z32VLH4 support USB device and host functionality?

Yes, the MKL25Z32VLH4 integrates a USB 2.0 Full-/Low-Speed On-The-Go (OTG) controller with an on-chip transceiver and integrated 5 V to 3.3 V regulator. This enables both device and host roles without external PHY or LDO components. The MKL25Z32VLH4 supports standard USB classes including HID, CDC, and MSC, and can enumerate as either role depending on VBUS detection and software configuration.

How many GPIO pins are available on the MKL25Z32VLH4 in the 64-pin LQFP package?

The MKL25Z32VLH4 in the 64-pin LQFP package provides 50 general-purpose I/O pins. These include dedicated TSI touch-sensing inputs, UART, SPI, I²C, and USB signal pins-all multiplexed onto physical package terminals. All GPIOs support interrupt generation, programmable pull-up/pull-down (20–50 kΩ), and configurable drive strength, as documented in the KL25P80M48SF0RM reference manual.

What is the lowest power consumption mode supported by the MKL25Z32VLH4?

The MKL25Z32VLH4 supports Very-Low-Leakage Stop Mode 0 (VLLS0) with typical current draw of 0.31 µA at 3.0 V and 25°C, while retaining full SRAM and register contents. In this mode, the core and most clocks are disabled, but the Low-Leakage Wakeup Unit (LLWU) remains active to trigger wake-up from external pins, RTC alarm, or LLWU sources. The MKL25Z32VLH4 achieves 4 µs wake-up latency from VLLS0 to active RUN mode.

Is the MKL25Z32VLH4 compatible with development tools like Kinetis Design Studio or MCUXpresso IDE?

Yes, the MKL25Z32VLH4 is fully supported by NXP's MCUXpresso IDE (successor to Kinetis Design Studio), including device-specific SDKs, drivers, example projects, and debug probe integration (e.g., LPC-Link2, Segger J-Link). The MKL25Z32VLH4 also works with OpenOCD and pyOCD for SWD-based debugging and flashing, and is compatible with NXP's FRDM-KL25Z evaluation board for rapid prototyping.