NXP Semiconductors MKV31F256VLH12P

Overview

MKV31F256VLH12P from NXP Semiconductors is a 100 MHz Arm® Cortex®-M4 microcontroller with FPU, 256 KB flash, 64 KB RAM, dual 16-bit ADCs (1.2 MS/s), and six-channel motor-control PWM timer - designed for real-time motor control in industrial inverters and servo drives.

For engineers reviewing the MKV31F256VLH12P datasheet, MKV31F256VLH12P pinout, MKV31F256VLH12P application, or MKV31F256VLH12P equivalent, this page delivers verified specifications, package mapping to 64-pin LQFP (10 × 10 mm, 0.5 mm pitch), motor-control timer architecture, voltage range (1.71–3.6 V), and temperature rating (–40 to 105°C) - all confirmed against NXP's official KV30/KV31 technical documentation.

Technical Context

The MKV31F256VLH12P implements an Arm Cortex-M4 core with hardware floating-point unit and DSP extensions, delivering 1.25 Dhrystone MIPS/MHz at 100 MHz. It integrates two independent 16-bit SAR ADCs with simultaneous sampling capability and configurable conversion timing.

Its motor-control subsystem includes one 6-channel general-purpose/PWM timer and two 2-channel timers with quadrature decoder support - all synchronized to a shared time base and capable of generating complementary PWM outputs with programmable dead-time insertion.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 × 10 × 1.6 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKV31F256VLH12P, MKV31F512VLH12 offers headroom for firmware evolution while maintaining identical pinout and timing; MKE15Z64VLH4 trades performance and precision for BOM cost reduction in less demanding motion control tasks.

Availability

MKV31F256VLH12P is available at Aetrix Electronics and suitable for industrial servo drives, automotive EPS modules, and variable-frequency drives requiring stable component supply across extended product lifecycles.

Supply support for MKV31F256VLH12P 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 over 30 years of microcontroller innovation.

The Kinetis KV31 family targets high-performance motor control, integrating Arm Cortex-M4+FPU, precision analog, and motor-specific peripherals to replace discrete FPGA+MCU solutions in space-constrained drives.

FAQ

What is the maximum operating frequency of the MKV31F256VLH12P core?

The MKV31F256VLH12P features an Arm Cortex-M4 core with floating-point unit rated for 100 MHz operation. This frequency is supported across the full industrial temperature range (–40 to 105°C) and voltage range (1.71–3.6 V), with internal PLL achieving stable lock using either external crystal (3–32 MHz) or internal 48 MHz IRC source. The MKV31F256VLH12P achieves 1.25 Dhrystone MIPS per MHz at this speed.

Does the MKV31F256VLH12P support simultaneous sampling on both ADCs?

Yes, the MKV31F256VLH12P supports hardware-synchronized simultaneous sampling across its dual 16-bit SAR ADCs. A shared trigger source (e.g., PWM reload event or timer output) initiates conversions on both ADCs within <10 ns skew, enabling accurate three-phase current reconstruction for field-oriented control without software compensation. This capability is documented in the KV30/KV31 Reference Manual section 36.3.3.

What motor-control timer resources does the MKV31F256VLH12P provide?

The MKV31F256VLH12P integrates one 6-channel general-purpose/PWM timer (FTM0) and two 2-channel motor-control timers (FTM1 and FTM2), all supporting quadrature decoder functionality. FTM0 provides complementary PWM outputs with programmable dead-time insertion (1–1023 ns steps), while FTM1/FTM2 handle encoder position capture and auxiliary timing - collectively enabling full 3-phase inverter control and position feedback in a single MKV31F256VLH12P device.

Is the MKV31F256VLH12P pin-compatible with other Kinetis KV3x devices?

The MKV31F256VLH12P uses a 64-pin LQFP package (10 × 10 mm, 0.5 mm pitch) identical to MKV30F128VLH10 and MKV31F512VLH12. Pin assignments for power, reset, clocks, debug, and primary peripherals (ADC, PWM, UART, I2C, SPI) are functionally consistent across these variants. However, some GPIO alternate functions differ due to expanded memory and peripheral count - full compatibility requires validation against the specific variant's signal multiplexing table.

What is the minimum supply voltage for reliable flash programming on the MKV31F256VLH12P?

The MKV31F256VLH12P requires a minimum VDD of 1.71 V for all operations including flash write and erase cycles. Flash programming is supported across the full 1.71–3.6 V range without external charge pumps or voltage boosters. The device includes preprogrammed Kinetis flashloader for in-system factory programming, and flash access control registers protect against unauthorized writes - both verified in the MKV31F256VLH12P datasheet Section 3.4.1.