NXP Semiconductors MKE02Z16VFM4

Overview

MKE02Z16VFM4 from NXP Semiconductors is a 32-bit ARM Cortex-M0+ microcontroller with 16 KB flash, 4 KB RAM, and 256 B EEPROM, operating from 2.7–5.5 V across –40 to 105°C ambient. It integrates a 12-bit SAR ADC, dual analog comparators with 6-bit DACs, three UARTs, two SPIs, one I²C, six FTM channels, RTC, and SWD debug - deployed in industrial sensor nodes and motor control subsystems.

For engineers reviewing the MKE02Z16VFM4 datasheet, MKE02Z16VFM4 pinout, MKE02Z16VFM4 application, or MKE02Z16VFM4 equivalent, key selection criteria include its 32-pin QFN (5 mm × 5 mm) package, 40 MHz core clock capability, Stop-mode current as low as 1.9 µA at 3 V, integrated LVD with four warning thresholds, and support for crystal oscillators from 32.768 kHz up to 20 MHz.

Technical Context

The MKE02Z16VFM4 implements an ARM Cortex-M0+ core with single-cycle 32×32-bit multiplier and single-cycle I/O port access, paired with an Internal Clock Source (ICS) featuring a trimmable FLL capable of generating up to 40 MHz system clocks from internal or external references. Its oscillator supports both low-power 32.768 kHz crystals and high-gain 4–20 MHz ceramic resonators.

Power management includes Run/Wait/Stop modes, with Stop mode retaining RAM and enabling wake-up via ADC conversion completion, ACMP output, or RTC alarm while drawing only 1.9–2.0 µA at 3 V. The device uses a dedicated 1 kHz low-power oscillator (LPO) for RTC and watchdog timing during deep sleep.

Key Specifications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch), thermally enhanced with exposed pad - suitable for compact, thermally constrained PCB layouts in space-limited industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKE02Z32VFM4 and S9KEAZ128AMLH, the MKE02Z16VFM4 delivers optimal cost and footprint efficiency for fixed-function embedded controllers where 16 KB flash and 32-pin QFN are sufficient - avoiding over-provisioned resources while maintaining full peripheral compatibility within the KE02Z family.

Availability

MKE02Z16VFM4 is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor controllers, smart power outlets, and medical HMI systems requiring stable component supply across long production lifecycles.

Supply support for MKE02Z16VFM4 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 applications, with R&D centers across Europe, Asia, and North America.

The KE02Z series targets cost-sensitive, ultra-low-power embedded control - designed specifically for sensor fusion, motor drive, and human-interface applications where small footprint, robust operation across wide temperature ranges, and integrated analog peripherals reduce BOM count.

FAQ

What is the maximum system clock frequency supported by the MKE02Z16VFM4?

The MKE02Z16VFM4 supports a maximum system clock frequency of 40 MHz, achieved via its internal clock source (ICS) with a trimmable FLL. This frequency is confirmed in the KE02 Sub-Family Data Sheet (Rev. 6, 12/2019), Table 7, where fSys is specified as DC to 40 MHz. The MKE02Z16VFM4 achieves this using either internal reference trimming or external crystal input, and the bus clock runs at up to 20 MHz.

Does the MKE02Z16VFM4 support crystal oscillators below 1 MHz?

Yes, the MKE02Z16VFM4 supports a 32.768 kHz crystal oscillator in its low-range OSC mode, as documented in Table 12 of the KE02 Sub-Family Data Sheet. This enables precision RTC operation with low power consumption. The device does not support crystals below 32.768 kHz; lower frequencies require the internal 1 kHz LPO or external clock injection.

What is the minimum supply voltage required for EEPROM write operations on the MKE02Z16VFM4?

The MKE02Z16VFM4 requires a minimum supply voltage of 2.7 V for EEPROM write operations, matching its overall operating voltage range. This is explicitly stated in Section "Operating characteristics" of the KE02 Sub-Family Data Sheet: "Voltage range: 2.7 to 5.5 V" and "Flash write voltage range: 2.7 to 5.5 V", with EEPROM sharing the same voltage domain and write circuitry as flash.

How many UART interfaces does the MKE02Z16VFM4 include, and are they all available in the 32-pin QFN package?

The MKE02Z16VFM4 includes up to three UART modules, and all three are fully functional and accessible in the 32-pin QFN (FM) package. Pin assignments for UART0 (PTA1/PTA2), UART1 (PTB0/PTB1), and UART2 (PTC3/PTC4) are confirmed in Section 8.2 ("Device pin assignment") of the KE02 Sub-Family Data Sheet, with no multiplexing conflicts in the FM package variant.

Can the MKE02Z16VFM4 operate in Stop mode while maintaining ADC functionality?

Yes, the MKE02Z16VFM4 supports ADC conversions in Stop mode, as verified in Table 5 ("Supply current characteristics") of the KE02 Sub-Family Data Sheet. With ADLPC = 1, ADLSMP = 1, ADCO = 1, MODE = 10B, and ADICLK = 11B, the ADC remains active during Stop, consuming only 41–42 µA (32-pin package) while enabling wake-up on conversion completion - critical for event-driven sensing.