NXP Semiconductors MKE02Z64VFM4

Overview

MKE02Z64VFM4 from NXP Semiconductors is a 32-bit ARM Cortex-M0+ microcontroller in a 32-pin QFN (5 mm × 5 mm) package, operating from 2.7–5.5 V across –40 to 105°C ambient. It delivers up to 40 MHz core performance, integrates 64 KB flash, 4 KB RAM, and 256 B EEPROM, and supports low-power Stop mode with 1.9 µA typical current at 3 V - deployed in industrial sensor nodes and automotive body electronics.

For engineers reviewing the MKE02Z64VFM4 datasheet, MKE02Z64VFM4 pinout, MKE02Z64VFM4 application, or MKE02Z64VFM4 equivalent, key selection considerations include its 32-pin QFN footprint, 40 MHz Cortex-M0+ core, integrated 12-bit ADC with Stop-mode operation, dual FlexTimer/PWM modules, and SWD debug interface compatibility with standard ARM toolchains.

Technical Context

The MKE02Z64VFM4 implements an ARM Cortex-M0+ core with single-cycle 32×32-bit multiplier and single-cycle I/O port access. Its clock system combines an internal FLL (with 31.25 kHz pre-trimmed reference for 32–40 MHz system clock), external crystal support (32.768 kHz or 4–20 MHz), and a 1 kHz LPO for ultra-low-power wake-up.

Peripherals include one 6-channel and two 2-channel FlexTimer/PWM modules, a real-time clock (RTC), two SPI, up to three UART, and one I²C interface - all accessible via multiplexed GPIO pins. The device features programmable cyclic redundancy check (CRC), bit manipulation engine (BME), and power management with Run/Wait/Stop modes.

Key Specifications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP). Pinout validated per KE02 Sub-Family Data Sheet Rev. 6, Section 8.2 (MKE02Z64VFM4-specific assignment).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKE02Z64VFM4, MKE02Z64VLC4 offers identical functionality in a through-hole-friendly LQFP package but sacrifices thermal performance and board density; S9KEAZ128AMLH provides headroom for firmware growth and extended temperature operation but demands significant PCB revision and increased component cost.

Availability

MKE02Z64VFM4 is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body electronics, and smart lighting dimmers requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for MKE02Z64VFM4 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 applications, with deep expertise in ARM-based microcontrollers and edge processing.

The MKE02Z64VFM4 belongs to NXP's Kinetis KE02 family - designed specifically for cost-sensitive, ultra-low-power embedded control applications where small footprint, robust analog integration, and guaranteed industrial temperature operation are critical.

FAQ

What is the maximum operating frequency of the MKE02Z64VFM4 core?

The MKE02Z64VFM4 features an ARM Cortex-M0+ core rated for up to 40 MHz operation. This maximum frequency is achieved using the internal FLL with trimming, or via external crystal up to 20 MHz driving the FLL. Bus clock runs at up to 20 MHz, and the device maintains timing compliance across its full –40 to 105°C operating range and 2.7–5.5 V supply.

Does the MKE02Z64VFM4 support debugging via Serial Wire Debug (SWD)?

Yes, the MKE02Z64VFM4 includes a Serial Wire Debug (SWD) interface using dedicated SWD_CLK and SWD_DIO pins. It supports full read/write memory access, hardware breakpoints, and real-time variable inspection at clock rates up to 20 MHz. No external debug probe is required beyond standard ARM-compliant tools such as SEGGER J-Link or NXP LPC-Link2.

Can the MKE02Z64VFM4 ADC operate while the device is in Stop mode?

Yes, the 12-bit SAR ADC in the MKE02Z64VFM4 can perform conversions during Stop mode when configured with ADLPC = 1, ADLSMP = 1, and MODE = 10B. In this configuration, typical Stop current increases only by 41–42 µA (for 32-pin packages), enabling ultra-low-power periodic sensing without CPU wake-up - a key capability for battery-operated sensor applications using MKE02Z64VFM4.

What package type does the MKE02Z64VFM4 use, and what are its thermal characteristics?

The MKE02Z64VFM4 uses a 32-pin QFN package (5 mm × 5 mm, 0.5 mm pitch) with an exposed thermal pad. On a four-layer PCB, its junction-to-ambient thermal resistance (RθJA) is 33°C/W under natural convection, significantly lower than LQFP variants. This enables sustained 40 MHz operation at 105°C ambient when properly soldered and thermally anchored to PCB copper.

How many UART interfaces does the MKE02Z64VFM4 support, and are they hardware flow-controlled?

The MKE02Z64VFM4 supports up to three UART modules, each with full TX/RX capability and programmable baud rate generation. None of the UARTs include built-in RTS/CTS hardware flow control logic; however, any GPIO pin can be assigned to implement software-managed flow control or used as modem control signals via the pin-multiplexing matrix - a flexible approach confirmed in the KE02 Sub-Family Data Sheet Rev. 6, Section 6.5.2.