NXP Semiconductors MK20DX64VLK7

Overview

MK20DX64VLK7 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extensions, designed for embedded control applications requiring real-time signal processing and low-power operation. It integrates 64 KB flash, 16 KB SRAM, dual 16-bit SAR ADCs with integrated PGA (up to ×64 gain), 12-bit DAC, USB full/low-speed OTG controller, CAN 2.0B interface, and operates from 1.71–3.6 V across –40 to 105°C ambient.

For engineers reviewing the MK20DX64VLK7 datasheet, MK20DX64VLK7 pinout, MK20DX64VLK7 application, or MK20DX64VLK7 equivalent, this page delivers verified technical context, validated package mapping (80-pin LQFP, 12 mm × 12 mm), confirmed peripheral capabilities including USB OTG + CAN + TSI, and real-world selection guidance against functionally aligned alternatives.

Technical Context

The MK20DX64VLK7 implements a 72 MHz ARM Cortex-M4 core with DSP instructions and single-cycle MAC, paired with a multi-purpose clock generator supporting crystal oscillators at 3–32 MHz and 32 kHz. Its memory subsystem includes 64 KB program flash with FlexMemory support and 16 KB SRAM, while system-level features include an 16-channel DMA controller and low-leakage wakeup unit enabling deep-sleep modes down to 1.47 µA in VLLS1.

Analog integration comprises two independent 16-bit SAR ADCs-each with programmable gain amplifier (×1 to ×64), hardware averaging, and configurable resolution-and a 12-bit DAC with 1 MS/s update rate. Communication is served by four UARTs, two I²C modules, two SPI interfaces, I²S, USB OTG with on-chip transceiver, and a fully compliant CAN 2.0B controller with flexible message buffering and loopback testing.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), 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 MK20DX64VLK7, K20DX128VLK7 offers seamless scalability within the same family, while KL27Z128VLH4 trades DSP capability and clock speed for reduced cost and static power - making it viable only where computational load is light and peripheral feature set remains sufficient.

Availability

MK20DX64VLK7 is available at Aetrix Electronics and suitable for industrial motor control, portable medical instrumentation, automotive body electronics, and smart energy metering requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MK20DX64VLK7 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 markets, with roots in Freescale's Kinetis portfolio.

The MK20DX64VLK7 belongs to the Kinetis K20 family - engineered for mixed-signal embedded control in resource-constrained, safety-aware environments where analog precision, real-time responsiveness, and low-power longevity are critical.

FAQ

What is the maximum operating frequency of the MK20DX64VLK7?

The MK20DX64VLK7 operates at a maximum core frequency of 72 MHz, enabled by its ARM Cortex-M4 processor and Multi-Purpose Clock Generator. This frequency is achievable with a 3–32 MHz crystal oscillator and proper MCG configuration in FEE mode. The MK20DX64VLK7 sustains this speed across its full –40 to 105°C temperature range when supplied within the 1.71–3.6 V specification.

Does the MK20DX64VLK7 support USB device and host functionality?

Yes, the MK20DX64VLK7 integrates a full-/low-speed USB On-The-Go (OTG) controller with an on-chip transceiver, enabling both device and host roles without external PHY components. It supports standard USB classes including CDC, HID, and MSC, and the MK20DX64VLK7's USB module complies with USB 2.0 specifications for enumeration, suspend/resume, and data transfer at up to 12 Mbps.

What analog peripherals are integrated into the MK20DX64VLK7?

The MK20DX64VLK7 integrates two independent 16-bit SAR ADCs, each with a programmable gain amplifier (PGA) offering gains from ×1 to ×64, hardware averaging, and configurable conversion resolution. It also includes a 12-bit DAC, three analog comparators (each with a 6-bit DAC and programmable reference), and a precision voltage reference - all accessible through dedicated pins and controlled via memory-mapped registers in the MK20DX64VLK7.

Is the MK20DX64VLK7 pin-compatible with other K20 family members?

The MK20DX64VLK7 uses an 80-pin LQFP package (LK suffix) and shares identical pin assignments with other K20 devices in the same package variant, including MK20DX128VLK7 and MK20DX256VLK7. This allows direct PCB reuse when upgrading flash capacity, provided power delivery, decoupling, and thermal design accommodate the higher memory density - a verified compatibility confirmed in the K20 Sub-Family Data Sheet Rev. 3.

What low-power modes does the MK20DX64VLK7 support?

The MK20DX64VLK7 supports seven low-power modes: RUN, WAIT, VLPR, STOP, VLPS, LLS, and VLLS (with sub-modes VLLS0–VLLS3). In VLLS1 mode, it achieves 1.47 µA typical current draw at 3.0 V and –40 to 25°C while retaining RAM and RTC operation. These modes are managed via the PMC and LPTMR modules, and the MK20DX64VLK7's low-leakage wakeup unit enables fast wake-up from any mode using GPIO, RTC alarm, or CAN bus activity.