NXP Semiconductors MK20DX64VLH5

Overview

MK20DX64VLH5 from NXP Semiconductors (formerly Freescale) is a 50 MHz ARM Cortex-M4 microcontroller with DSP extension, 64 KB program flash, 16 KB RAM, and FlexMemory support. It integrates USB OTG, 16-bit SAR ADC, dual comparators with 6-bit DAC, real-time clock, and eight-channel PWM timer. Used in industrial motor control and embedded HMI systems requiring deterministic timing and low-power operation.

For engineers reviewing the MK20DX64VLH5 datasheet, MK20DX64VLH5 pinout, MK20DX64VLH5 application, or MK20DX64VLH5 equivalent, this page delivers verified technical context, package mapping to 64-pin LQFP (10 mm × 10 mm), validated power modes down to 0.176 μA in VLLS0, confirmed USB full-speed transceiver integration, and two field-validated alternative parts for migration planning.

Technical Context

The MK20DX64VLH5 implements an ARM Cortex-M4 core with hardware DSP instructions and single-cycle MAC, operating at up to 50 MHz with 1.25 DMIPS/MHz performance. Its memory subsystem includes 64 KB on-chip flash, 16 KB SRAM, and FlexMemory architecture enabling configurable allocation of up to 32 KB as EEPROM-emulated nonvolatile storage or additional RAM.

System-level timing is managed by a multi-source clock system: dual crystal oscillators (3–32 MHz and 32 kHz), multipurpose clock generator (MCG), and programmable delay block. Peripheral clock gating and seven low-power modes-including VLLS0 with POR detect disabled-enable sub-microamp operation while retaining RTC and wake-up capability.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm), RoHS-compliant, moisture sensitivity level 3 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK20DX64VLH5, MK20DX128VLH5 offers headroom for feature expansion without hardware redesign, while MKE15Z64VLH5 trades DSP/USB capability for lower static power and bill-of-materials cost in non-USB, non-motor-control roles.

Availability

MK20DX64VLH5 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, USB HID devices, and embedded HMI applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MK20DX64VLH5 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with roots in Freescale's Kinetis portfolio.

The MK20DX64VLH5 belongs to the Kinetis K20 family, designed specifically for cost-sensitive, low-power embedded applications demanding real-time performance, mixed-signal integration, and robust USB connectivity in harsh environments.

FAQ

What is the maximum operating frequency of the MK20DX64VLH5?

The MK20DX64VLH5 operates at a maximum core/system clock frequency of 50 MHz. This is achieved using the internal MCG in FEI or PBE modes with appropriate crystal or external clock sources. The USB full-speed interface requires the system clock to be ≥20 MHz and ≤50 MHz, and flash access timing is optimized for 25 MHz bus clock in normal run mode. All timing specifications in the K20P64M50SF0 datasheet assume this 50 MHz limit.

Does the MK20DX64VLH5 include an integrated USB transceiver?

Yes, the MK20DX64VLH5 includes a full-speed/low-speed USB On-The-Go controller with an integrated transceiver. No external PHY is required for USB communication. The USB_DP and USB_DM pins connect directly to the USB connector, and the internal regulator supports VBUS detection and 3.3 V I/O compliance. This integration reduces BOM count and simplifies layout for USB-enabled edge devices.

What low-power modes are supported by the MK20DX64VLH5, and what is the lowest achievable current?

The MK20DX64VLH5 supports seven low-power modes, including VLLS0 through VLLS3, LLS, VLPS, and STOP. In VLLS0 mode with POR detect circuit disabled, the device draws as little as 0.176 μA at –40°C to 25°C. This mode retains RTC operation and allows wake-up via selected GPIOs or the 32 kHz oscillator, making it ideal for battery-backed applications requiring multi-year operation.

How much FlexMemory does the MK20DX64VLH5 provide, and how is it allocated?

The MK20DX64VLH5 provides 32 KB of FlexNVM and 2 KB of FlexRAM as part of its FlexMemory architecture. FlexNVM can be partitioned into EEPROM-emulated sectors (with byte-write and wear leveling) or additional program flash, while FlexRAM serves as fast, nonvolatile data storage. Allocation is configured at runtime via FTFL registers and persists across resets, enabling flexible data logging and parameter storage without external EEPROM.

Is the MK20DX64VLH5 pin-compatible with other K20 family members?

Yes, the MK20DX64VLH5 is pin-compatible with other K20 devices in the same 64-pin LQFP (LH) package, including MK20DN64VLH5, MK20DX128VLH5, and MK20DN128VLH5. Pin assignments for power, clocks, USB, ADC, and GPIOs are consistent across these variants. This allows hardware reuse when scaling flash/RAM capacity or selecting FlexMemory vs. flash-only configurations.