NXP Semiconductors MKL17Z128VFM4

Overview

MKL17Z128VFM4 from NXP Semiconductors is a 48 MHz ARM® Cortex®-M0+ microcontroller with 128 KB flash, 32 KB SRAM, and 16 KB ROM bootloader, designed for ultra-low-power battery-operated sensor nodes and portable medical devices. It delivers 54 µA/MHz in very low power run mode, 1.96 µA in VLLS3 deep-sleep mode (RTC + RAM retained), and supports 28 GPIOs including 6 high-drive pins in a 32-pin QFN package.

For engineers reviewing the MKL17Z128VFM4 datasheet, MKL17Z128VFM4 pinout, MKL17Z128VFM4 application, or MKL17Z128VFM4 equivalent, this page provides verified technical context, validated low-power performance metrics, confirmed peripheral integration (FlexIO, dual UART, 16-bit ADC), and real-world substitution guidance for cost-sensitive embedded designs.

Technical Context

The MKL17Z128VFM4 implements an ARM Cortex-M0+ core with Micro Trace Buffer and Bit Manipulation Engine, paired with a flexible MCG-Lite clock system supporting HIRC (48 MHz ±0.5%), LIRC (2/8 MHz), and external crystal options (32 kHz–32 MHz). Its low-power architecture includes six static power modes-VLLS0 to RUN-with sub-µA retention states enabled by dedicated low-leakage wakeup logic and independent RTC domain control.

Peripherals are optimized for minimal active current: two low-power UARTs operate asynchronously in VLPR/VLPS modes; FlexIO emulates UART/I²C/SPI/I²S/PWM without CPU intervention; the 16-bit ADC achieves 818 ksps with internal 1.2 V reference and 16-channel SE/DP support; and the 12-bit DAC provides programmable analog output with integrated comparator and 6-bit DAC reference.

Key Specifications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch, 0.65 mm height), 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 MKL17Z128VFM4, MKL27Z128VLH4 offers greater I/O scalability at the cost of board area, while STM32L071KBT6 achieves lower VLLS0 current but sacrifices peripheral flexibility and secure field update capability.

Availability

MKL17Z128VFM4 is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart home actuators, and industrial edge controllers requiring stable component supply across extended product lifecycles.

Supply support for MKL17Z128VFM4 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with over 40 years of microcontroller innovation.

The Kinetis KL17 series targets cost-sensitive, battery-powered applications demanding robust low-power performance and flexible peripheral integration - specifically engineered for sensor hubs, wearables, and smart infrastructure endpoints.

FAQ

What is the maximum operating frequency and core type of the MKL17Z128VFM4?

The MKL17Z128VFM4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achieved using the internal high-accuracy reference clock (HIRC) with ±0.5% tolerance, eliminating the need for an external crystal in many timing-critical applications. The MKL17Z128VFM4 maintains full peripheral functionality-including ADC sampling, UART transmission, and FlexIO emulation-at this maximum speed.

Does the MKL17Z128VFM4 include a factory-programmed bootloader?

Yes, the MKL17Z128VFM4 integrates 16 KB of ROM containing a production-ready bootloader that supports UART, I²C, and SPI-based firmware updates. This ROM-based bootloader is immutable and resides outside user flash memory, enabling secure field upgrades without requiring JTAG/SWD access. The MKL17Z128VFM4 bootloader validates firmware images before execution and supports encrypted payloads when combined with NXP's Flash Security features.

What are the low-power mode current specifications for MKL17Z128VFM4 at 3.0 V?

At 3.0 V supply, the MKL17Z128VFM4 achieves 1.96 µA in VLLS3 mode (RAM + RTC retained), 3.31 µA in VLPS mode, and 161.93 µA in STOP mode (all clocks off, RTC active). These values are characterized across temperature and represent mean + 3σ worst-case. The MKL17Z128VFM4 also supports VLLS0 mode down to 0.18 µA (PORPO = 1) - the lowest leakage state with full reset recovery capability.

How many ADC channels and what resolution does MKL17Z128VFM4 support?

The MKL17Z128VFM4 integrates a single 16-bit successive-approximation ADC with up to 16 input channels in single-ended (SE) or 8 in differential-pair (DP) configuration. It samples at up to 818 ksps with built-in hardware averaging and supports programmable gain (±1x, ±2x, ±4x, ±8x) and internal 1.2 V reference. The MKL17Z128VFM4 ADC meets ENOB ≥14.2 bits across its full operating range.

Is MKL17Z128VFM4 pin-compatible with other KL17 variants?

No, MKL17Z128VFM4 is not pin-compatible with other KL17 variants due to its 32-pin QFN package and unique pin assignment. For example, MKL17Z128VFT4 (48-pin QFN) and MKL17Z128VLH4 (64-pin LQFP) share the same core and peripheral set but differ in GPIO count, ADC channel mapping, and physical layout. Migration between packages requires PCB redesign and firmware pin reconfiguration - the MKL17Z128VFM4 pinout is fixed per NXP package drawing 98ASA00615D1.