NXP Semiconductors MKV42F256VLH16

Overview

MKV42F256VLH16 from NXP Semiconductors is a 168 MHz Arm Cortex-M4 microcontroller with FPU, designed for digital power conversion and motor control. It integrates dual 12-bit ADCs (4.1 MSPS), 13-channel eFlexPWM with sub-nanosecond resolution, 256 KB flash, 32 KB RAM, two FlexCAN interfaces, and operates from 1.71–3.6 V across –40 to 105 °C.

For engineers reviewing the MKV42F256VLH16 datasheet, MKV42F256VLH16 pinout, MKV42F256VLH16 application, or MKV42F256VLH16 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use cases in servo drives and SMPS, and two confirmed alternative parts with documented functional and packaging differences.

Technical Context

The MKV42F256VLH16 implements an Arm Cortex-M4 core with single-precision FPU and DSP extensions, running at up to 168 MHz with a 1:2 timer-to-core clock ratio. Its analog subsystem includes two independent 12-bit cyclic ADCs (240 ns conversion time), four analog comparators with integrated 6-bit DACs, and one 12-bit DAC.

Digital control is enabled by the eFlexPWM module-supporting 13 PWM channels across four submodules-with 312 ps timing resolution and programmable delay blocks (PDB). System-level robustness is ensured via memory protection unit (MPU), hardware CRC engine, external watchdog monitor (EWM), and dual FlexCAN 2.0B interfaces with message buffers.

Key Specifications

Pinout & Package

MKV42F256VLH16 is housed in a 64-pin LQFP package (10 × 10 × 1.4 mm, 0.5 mm pitch), RoHS-compliant and moisture-sensitive level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control and digital power conversion applications.

Compared with MKV42F128VLH16, MKV42F256VLH16 offers 100% more flash for complex observer-based control and OTA updates; versus MKV44F256VLH16, it omits nano-edge PWM but delivers identical motor control capability at reduced silicon cost and thermal load - making it optimal for mainstream industrial inverters.

Availability

MKV42F256VLH16 is available at Aetrix Electronics and suitable for industrial servo drives, switch-mode power supplies, uninterruptible power supplies, and electric vehicle traction inverters requiring stable component supply across extended temperature and long production lifecycles.

Supply support for MKV42F256VLH16 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 deep expertise in real-time microcontrollers and power management.

The Kinetis KV4x family - including MKV42F256VLH16 - was engineered specifically for high-fidelity digital power conversion and motor control, integrating precision analog, deterministic PWM, and safety-aware peripherals into a single Arm Cortex-M4 platform.

FAQ

What is the maximum operating frequency and core architecture of the MKV42F256VLH16?

The MKV42F256VLH16 features an Arm Cortex-M4 core with single-precision floating-point unit (FPU), operating at up to 168 MHz. This frequency is fully supported across its rated temperature range (–40 to 105 °C) and supply voltage (1.71–3.6 V), enabling deterministic execution of computationally intensive motor control algorithms such as field-oriented control (FOC) and model-predictive control (MPC) without throttling.

Does the MKV42F256VLH16 include hardware support for functional safety standards like IEC 61508 or ISO 26262?

Yes, the MKV42F256VLH16 includes multiple hardware features aligned with IEC 61508 SIL-2 requirements: memory protection unit (MPU), hardware CRC engine, external watchdog monitor (EWM), lock-step ready clock domain design, and fail-safe reset architecture. While NXP provides safety documentation (including FMEDA reports), final certification depends on system-level implementation - the MKV42F256VLH16 itself serves as a foundational safety element in certified motor drive designs.

How many PWM channels does the MKV42F256VLH16 support, and what is their timing resolution?

The MKV42F256VLH16 supports 13 PWM channels via its eFlexPWM module, distributed across four submodules. It achieves 312 ps timing resolution - enabled by a 3.2 GHz internal timebase - allowing precise dead-time insertion, phase shifting, and carrier synchronization critical for SiC/GaN-based power stages in high-efficiency SMPS and inverters.

What analog peripherals are integrated into the MKV42F256VLH16, and how are they configured for motor current sensing?

The MKV42F256VLH16 integrates dual 12-bit cyclic ADCs (ADC0 and ADC1), each capable of 4.1 MSPS aggregate throughput and 240 ns conversion time. For motor current sensing, both ADCs can be triggered simultaneously via PDB or eFlexPWM reload events, supporting shunt-based three-phase current measurement with hardware averaging and offset calibration - all without CPU intervention.

Is the MKV42F256VLH16 pin-compatible with other members of the KV4x family, such as MKV44F256VLH16 or MKV46F256VLH16?

No, the MKV42F256VLH16 is not pin-compatible with MKV44F256VLH16 or MKV46F256VLH16. Although all three share the 64LQFP package, pin assignments differ significantly - especially for eFlexPWM outputs, ADC inputs, and FlexCAN signals. The MKV42F256VLH16 uses a unique signal multiplexing scheme optimized for its specific peripheral count and routing constraints, requiring dedicated PCB layout.