NXP Semiconductors MKE04Z8VFK4R

Overview

MKE04Z8VFK4R from NXP Semiconductors is a 48 MHz Arm® Cortex-M0+ microcontroller with 8 KB flash, 1 KB RAM, and integrated analog peripherals including a 12-bit SAR ADC and dual analog comparators - designed for cost-sensitive industrial control and sensor interface applications in compact QFN packages.

For engineers reviewing the MKE04Z8VFK4R datasheet, MKE04Z8VFK4R pinout, MKE04Z8VFK4R application, or MKE04Z8VFK4R equivalent, key selection criteria include its -40 to 105°C operating range, 2.7–5.5 V supply flexibility, low-power Stop mode (2 µA), SWD debug interface, and 24-pin QFN (4 mm × 4 mm) footprint optimized for space-constrained embedded designs.

Technical Context

The MKE04Z8VFK4R implements an Arm Cortex-M0+ core with single-cycle 32-bit multiplier and I/O access, paired with an internal clock system (ICS) featuring FLL-based 48 MHz generation from a 32.768 kHz crystal or 4–24 MHz resonator. Its power management supports Run/Wait/Stop modes, with LVD, WDOG, and CRC modules ensuring robust operation in noisy environments.

Peripherals include two FlexTimer/PWM modules (6-channel + 2-channel), RTC, PIT, PWT, SPI, UART, I²C, and a 12-channel ADC capable of operation in Stop mode - enabling precise timing, communication, and analog sensing without full CPU wake-up. The device integrates BME and bitband SRAM for efficient register-level manipulation.

Key Specifications

Pinout & Package

Package: 24-pin QFN (4 mm × 4 mm), exposed thermal pad, 0.5 mm pitch - compatible with standard reflow processes and suitable for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKE04Z8VFK4R, the TG4R variant trades I/O count and thermal performance for smallest package size, while the WJ4R offers assembly simplicity at the cost of thermal efficiency and board area - making the FK4R optimal for production-volume, space- and power-sensitive industrial endpoints.

Availability

MKE04Z8VFK4R is available at Aetrix Electronics and suitable for industrial motor control, sensor interface, smart power switching, and HMI keypad applications requiring stable component supply across extended product lifecycles.

Supply support for MKE04Z8VFK4R 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The KE04 sub-family, including MKE04Z8VFK4R, was engineered for cost-optimized, low-power embedded control - delivering Cortex-M0+ performance with integrated analog and timing peripherals in compact packages for resource-constrained applications.

FAQ

What is the maximum operating frequency of the MKE04Z8VFK4R?

The MKE04Z8VFK4R operates at up to 48 MHz using its internal FLL with either an external crystal (32.768 kHz or 4–24 MHz) or internal reference. This frequency is fully supported across the -40 to 105°C temperature range and 2.7–5.5 V supply, with bus clock derived at half-core speed (24 MHz) for peripheral timing.

Does the MKE04Z8VFK4R support debugging during ultra-low-power modes?

Yes, the MKE04Z8VFK4R supports Serial Wire Debug (SWD) in Run and Wait modes. While SWD is disabled in Stop mode, the device can be woken by RTC or external interrupt and immediately resume debug session - enabling low-power validation without full reset. SWDCLK/SWDDIO pins retain functionality until Stop entry.

How many analog-to-digital converter channels does the MKE04Z8VFK4R have, and what is their resolution?

The MKE04Z8VFK4R integrates a single 12-bit successive approximation register (SAR) ADC with 12 input channels. It supports hardware triggering, differential mode, and continuous conversion - and crucially, remains operational in Stop mode, allowing sensor sampling without waking the CPU core.

What package type and dimensions does the MKE04Z8VFK4R use?

The MKE04Z8VFK4R uses a 24-pin QFN package measuring 4 mm × 4 mm with 0.5 mm pitch and an exposed thermal pad. This package is specified in the KE04 Sub-Family Data Sheet (Rev. 5, 04/2020) and supports JEDEC-standard reflow profiles, including lead-free soldering at peak temperatures up to 260°C.

Can the MKE04Z8VFK4R generate PWM signals with dead-time insertion?

No, the MKE04Z8VFK4R's FlexTimer modules (FTM) do not include hardware dead-time insertion. PWM generation is supported via complementary channel pairs in edge-aligned or center-aligned modes, but dead-time must be implemented in software using interrupt-driven timing or by leveraging the PWT module for precise pulse-width control in conjunction with GPIO toggling.