NXP Semiconductors MK20DX256ZVLL10

Overview

MK20DX256ZVLL10 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extensions, operating up to 100 MHz, featuring 256 KB on-chip flash memory and 128 KB RAM. It integrates dual 16-bit SAR ADCs with PGA, two 12-bit DACs, USB OTG, dual CAN, six UARTs, and supports industrial temperature range (–40°C to +105°C). Used in motor control, industrial automation, and smart sensor nodes.

For engineers reviewing the MK20DX256ZVLL10 datasheet, MK20DX256ZVLL10 pinout, MK20DX256ZVLL10 application, or MK20DX256ZVLL10 equivalent, key selection considerations include its FlexMemory architecture (256 KB flash + 4 KB FlexRAM), 100-pin LQFP package with full peripheral multiplexing, low-power stop modes down to 2.1 µA, and integrated hardware CRC and TSI for touch sensing.

Technical Context

The MK20DX256ZVLL10 implements an ARM Cortex-M4 core with single-cycle DSP instructions and optional floating-point unit support (not enabled in this variant). Its clock system includes a multi-purpose clock generator (MCG) supporting internal/external oscillators (3–32 MHz and 32 kHz), PLL-based frequency synthesis, and dynamic power mode transitions.

Peripherals are organized into functional domains: analog subsystem (dual ADCs with programmable gain amplifiers, comparators with 6-bit DACs, voltage reference), timing (eight-channel PWM timer, quadrature decoders, RTC), and communication (USB OTG, two CAN 2.0B controllers, three SPI, two I²C, six UART, SDHC, I²S). Memory protection unit (MPU) and DMA controller (16-channel, 63 request sources) enable robust real-time operation.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 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 microcontroller applications.

Compared with MK20DX256ZVLL10, MK20DN512ZVLL10 trades FlexMemory flexibility for raw flash capacity, while KEA128MT64xxx sacrifices performance and interface richness for cost and footprint reduction - making MK20DX256ZVLL10 optimal for mid-tier real-time control with mixed connectivity.

Availability

MK20DX256ZVLL10 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MK20DX256ZVLL10 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 deep expertise in ARM-based microcontrollers and edge processing.

The K20 series - including MK20DX256ZVLL10 - was designed for real-time industrial control and automotive body electronics, emphasizing mixed-signal integration, low-power operation, and functional safety readiness.

FAQ

What is the maximum operating frequency of the MK20DX256ZVLL10?

The MK20DX256ZVLL10 operates at a maximum CPU frequency of 100 MHz, achieved via its internal PLL driven by the multi-purpose clock generator (MCG). This frequency is fully supported across the full –40°C to +105°C temperature range and 1.71–3.6 V supply voltage, delivering 125 DMIPS and enabling real-time execution of DSP-intensive algorithms such as motor FOC or audio processing without external acceleration.

Does the MK20DX256ZVLL10 include hardware encryption or security features?

The MK20DX256ZVLL10 does not integrate AES, SHA, or TRNG hardware accelerators. Its security features are limited to a hardware CRC-32 module for data integrity checking and a 128-bit unique identification number per chip for device authentication. For applications requiring cryptographic operations, external secure elements or software-based libraries running on the Cortex-M4 core are necessary - the MK20DX256ZVLL10 provides no dedicated cryptographic engine.

Can the MK20DX256ZVLL10 support USB device and host modes simultaneously?

No, the MK20DX256ZVLL10 implements a USB On-The-Go (OTG) controller that supports either device or host mode - not both simultaneously. Mode selection is configured at runtime via the USB OTG control registers. While it can switch between roles, concurrent operation (e.g., acting as a USB host to a flash drive while presenting itself as a CDC ACM device to a PC) is not supported by the silicon architecture of the MK20DX256ZVLL10.

What is the purpose of FlexMemory in the MK20DX256ZVLL10?

FlexMemory in the MK20DX256ZVLL10 refers to its configurable memory architecture: 256 KB of program flash and 4 KB of FlexRAM. Unlike standard RAM, FlexRAM supports EEPROM-like functionality - enabling byte-level writes, wear leveling, and atomic update operations without erasing full sectors. This eliminates the need for external EEPROM in applications requiring frequent parameter storage (e.g., calibration data, metering logs), directly managed by the MK20DX256ZVLL10's flash controller.

Is the MK20DX256ZVLL10 pin-compatible with other K20 family members?

The MK20DX256ZVLL10 uses a 100-pin LQFP (LL) package and is not pin-compatible with other K20 variants in different packages (e.g., MC, MD, MJ) or pin counts (e.g., 64-pin LH, 121-pin MC). Even within the LL package group, pinouts differ between D-series (DSP-only) and F-series (DSP+FPU) devices due to alternate function assignments. Pin compatibility must be verified per specific orderable part using the official K20 signal multiplexing tables - MK20DX256ZVLL10 has no guaranteed drop-in replacement in the K20 family.