NXP Semiconductors MKL16Z32VLH4

Overview

MKL16Z32VLH4 from NXP Semiconductors is a 48 MHz ARM® Cortex®-M0+ based microcontroller in 64-pin LQFP package, featuring 32 KB flash, 4 KB SRAM, and up to 54 GPIOs. It delivers ultra-low-power operation (as low as 0.23 µA in VLLS0 mode), integrated 16-bit SAR ADC and 12-bit DAC, and supports nine low-power modes - ideal for battery-powered industrial sensors and portable HMI devices.

For engineers reviewing the MKL16Z32VLH4 datasheet, MKL16Z32VLH4 pinout, MKL16Z32VLH4 application, or MKL16Z32VLH4 equivalent, key selection criteria include its 64-pin LQFP footprint, -40°C to +105°C operating range, 1.71–3.6 V supply, 48 MHz max core frequency, and support for SWD debug with Micro Trace Buffer.

Technical Context

The MKL16Z32VLH4 implements an energy-optimized Cortex-M0+ core with Bit Manipulation Engine and hardware divide, paired with a multi-source clock system including internal 4 MHz/32 kHz IRC and external crystal support (32 kHz–32 MHz). Its memory subsystem includes zero-wait-state flash with RWW capability and configurable SRAM retention across low-power modes.

System-level integration includes a 4-channel DMA controller supporting 63 request sources, a low-leakage wakeup unit with TSI touch interface, and dual UART/I²C/SPI peripherals - all managed via a unified low-power mode controller (SMC) that enables sub-5 µs wake-up from VLPS/STOP and 2 µA static retention in VLLS1.

Key Specifications

Pinout & Package

64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKL26Z128VLH4 and STM32L053R8T6, the MKL16Z32VLH4 provides the best balance of ultra-low standby power (0.23 µA), integrated touch sensing, and 16-bit ADC precision in a minimal-footprint 64-pin LQFP - making it the preferred choice for battery-constrained, analog-rich edge nodes without USB requirements.

Availability

MKL16Z32VLH4 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart building controllers, and energy-harvesting IoT endpoints requiring stable component supply across extended product lifecycles.

Supply support for MKL16Z32VLH4 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, and IoT markets, with over 50 years of embedded systems expertise.

The Kinetis KL16 sub-family - including MKL16Z32VLH4 - was designed specifically for cost-sensitive, ultra-low-power general-purpose embedded applications requiring robust analog integration, long battery life, and seamless migration within the Kinetis portfolio.

FAQ

What is the maximum operating frequency of the MKL16Z32VLH4 core?

The MKL16Z32VLH4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achievable when the MCG clock module is configured in PEE mode with a 48 MHz system clock and 24 MHz bus/flash clocks. The device maintains full functionality - including ADC sampling, UART communication, and GPIO toggling - at this speed, as verified in the official NXP datasheet Rev. 7 (October 2023).

Does the MKL16Z32VLH4 support hardware touch sensing?

Yes, the MKL16Z32VLH4 integrates a dedicated Low-Power Hardware Touch Sensor Interface (TSI) capable of scanning up to 16 electrodes without external components. This TSI module operates independently in low-power modes (including VLPS and LLS) and supports automatic calibration - enabling robust capacitive button, slider, or wheel implementations directly within the MKL16Z32VLH4, eliminating the need for external touch controllers.

What are the lowest power consumption modes supported by the MKL16Z32VLH4?

The MKL16Z32VLH4 supports nine low-power modes, with VLLS0 (Very-Low-Leakage Stop Mode 0) delivering the lowest current: as low as 0.23 µA at 25°C with PORPO = 1 and full register/state retention. VLLS1 achieves 0.71 µA, and VLPS reaches 2.69 µA - all measured at 3.0 V supply. These values are confirmed in Table 9 of the NXP Kinetis KL16 Sub-Family datasheet Rev. 7.

Can the MKL16Z32VLH4 operate from a single 1.8 V supply?

No, the MKL16Z32VLH4 requires a minimum supply voltage of 1.71 V, but its specified operating range is 1.71 V to 3.6 V. At 1.8 V, the device functions fully - including flash programming, ADC conversion, and 48 MHz core operation - provided VDDA is maintained within ±0.1 V of VDD and all electrical characteristics (e.g., VIH/VIL thresholds) are met per Table 5 in the datasheet.

Is the MKL16Z32VLH4 pin-compatible with other Kinetis L-series MCUs?

The MKL16Z32VLH4 uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) shared with other KL16 variants (e.g., MKL16Z64VLH4, MKL16Z128VLH4), ensuring mechanical and solder-reflow compatibility. However, pin functions may differ across memory variants due to peripheral multiplexing - for example, certain ADC channels or UART signals are reassigned. Always verify signal mapping against the KL16 Pin Assignments table (Section 5.2 of the datasheet) before board reuse.