NXP Semiconductors MKL13Z32VLH4

Overview

MKL13Z32VLH4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM® Cortex®-M0+ microcontroller with 32 KB flash, 4 KB SRAM, and 8 KB ROM bootloader, designed for cost-sensitive, battery-powered applications requiring low-power general-purpose connectivity. It delivers 60 µA/MHz in very low power run mode, 1.83 µA in VLLS3 deep sleep (RAM + RTC retained), and supports up to 54 GPIOs including 4 high-drive pins in a 64-pin LQFP package.

For engineers reviewing the MKL13Z32VLH4 datasheet, MKL13Z32VLH4 pinout, MKL13Z32VLH4 application, or MKL13Z32VLH4 equivalent, key selection criteria include its integrated FlexIO for custom serial peripheral emulation, hardware CRC module, 16-bit 818 ksps ADC with 20-channel support, and dual low-power UARTs enabling always-on communication in energy-constrained systems.

Technical Context

The MKL13Z32VLH4 implements an ARM Cortex-M0+ core with Micro Trace Buffer and bit manipulation engine, paired with a flexible clock system featuring 48 MHz high-accuracy internal reference (±0.5%), 8/2 MHz internal clocks (±3%), and 32–40 kHz / 3–32 MHz crystal oscillator support. Its low-power architecture includes six static power modes - VLLS0–VLLS3, LLS, VLPS, STOP, WAIT, and RUN - with sub-µA retention capability.

Peripherals are optimized for mixed-signal edge-node control: one 16-bit Timer/PWM with 6 channels, two 2-channel Timer/PWM modules, periodic interrupt timer, real-time clock, and analog subsystem comprising 16-bit ADC (20 single-ended/4 differential inputs), 12-bit DAC, high-speed comparator with 6-bit DAC reference, and 1.2 V internal voltage reference - all operable across extended temperature (–40 to 105 °C) and supply range (1.71–3.6 V).

Key Specifications

Pinout & Package

Package: 64-pin LQFP, 10 mm × 10 mm, 0.5 mm pitch, 1.6 mm thickness - compatible with standard surface-mount assembly processes and accessible for manual prototyping.

Key Features

Applications

Equivalent & Alternatives

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

Compared with KL26Z32VLH4 and STM32L053R8T6, MKL13Z32VLH4 uniquely balances deep-sleep efficiency (1.83 µA), on-chip flexibility (FlexIO), and analog integration (20-channel 16-bit ADC) in a cost-optimized 64-LQFP package - making it ideal for battery-powered industrial and medical edge nodes where peripheral adaptability and long service life are jointly critical.

Availability

MKL13Z32VLH4 is available at Aetrix Electronics and suitable for smart utility metering, wearable health monitors, industrial sensor nodes, and automotive body control modules requiring stable component supply and long-term lifecycle support.

Supply support for MKL13Z32VLH4 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, mobile, and communication infrastructure markets.

The Kinetis KL13 series was designed specifically for cost-sensitive, battery-operated edge devices needing robust low-power performance, integrated analog peripherals, and flexible serial interface options - targeting applications from smart meters to portable medical equipment.

FAQ

What is the maximum operating frequency and core type of the MKL13Z32VLH4?

The MKL13Z32VLH4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This core delivers efficient 32-bit processing with low gate count and power consumption, making it well-suited for deterministic real-time tasks in resource-constrained embedded systems. The MKL13Z32VLH4 achieves this speed using its high-accuracy 48 MHz internal reference clock (±0.5%), eliminating dependency on external crystals for many applications.

Does the MKL13Z32VLH4 support hardware-based cryptographic acceleration or secure boot?

The MKL13Z32VLH4 does not include dedicated cryptographic accelerators (e.g., AES, SHA, or RSA engines) or hardware secure boot circuitry. However, it provides advanced flash security via memory protection units and lock bits to prevent unauthorized read-out or reprogramming. Secure boot must be implemented in software using the 80-bit unique identification number per chip and the ROM bootloader's verified update mechanism - both supported by the MKL13Z32VLH4.

What are the low-power modes supported by the MKL13Z32VLH4, and what is the lowest current draw?

The MKL13Z32VLH4 supports six flexible low-power modes: RUN, WAIT, STOP, VLPS, LLS, VLLS0–VLLS3. Its lowest operational current is 1.83 µA in VLLS3 mode with RAM and RTC retained at 3.0 V and 25 °C. This mode enables long-duration timekeeping and wake-up event detection while preserving context - a key capability for battery-powered MKL13Z32VLH4 deployments in remote sensing and metering.

Can the MKL13Z32VLH4 operate without an external crystal oscillator?

Yes, the MKL13Z32VLH4 can operate fully without an external crystal. It integrates multiple high-accuracy internal oscillators: a 48 MHz HIRC (±0.5%), 8 MHz and 2 MHz LIRC (±3%), and a 1 kHz reference active in all low-power modes except VLLS0. These allow full functionality - including USB-free communication, ADC conversion, and RTC operation - using only internal clocks, reducing BOM cost and board area for the MKL13Z32VLH4.

How many ADC channels does the MKL13Z32VLH4 support, and what is its resolution and sampling rate?

The MKL13Z32VLH4 integrates a single 16-bit successive approximation register (SAR) ADC with up to 20 single-ended or 4 differential input channels. It achieves a maximum sampling rate of 818 ksps and includes a high-accuracy internal voltage reference (Vref) for stable conversions across temperature and supply variations - essential for precision measurement applications using the MKL13Z32VLH4.