NXP Semiconductors MK22DX128VLF5

Overview

MK22DX128VLF5 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extension, designed for embedded control applications requiring real-time signal processing and low-power operation. It operates at up to 50 MHz, integrates 128 KB program flash and 64 KB RAM, supports -40°C to +105°C ambient temperature, and features USB OTG, multiple UARTs, and 16-bit SAR ADC - used in industrial sensor nodes and motor control edge devices.

For engineers reviewing the MK22DX128VLF5 datasheet, MK22DX128VLF5 pinout, MK22DX128VLF5 application, or MK22DX128VLF5 equivalent, key selection criteria include its FlexMemory architecture (64 KB FlexNVM + 4 KB FlexRAM), 50 MHz core performance with DSP instructions, 48-pin LQFP package, USB full-/low-speed On-the-Go capability, and support for multiple low-power modes including VLLS0 with sub-1 µA stop current.

Technical Context

The MK22DX128VLF5 implements an ARM Cortex-M4 core with hardware DSP extensions and single-cycle MAC operations, paired with a multi-purpose clock generator supporting crystal oscillators (3–32 MHz and 32 kHz), internal reference, and flexible PLL configurations. Its memory subsystem includes 128 KB on-chip flash with error correction, 64 KB SRAM, and FlexMemory enabling EEPROM-like wear-leveling via 64 KB FlexNVM and 4 KB FlexRAM.

Peripherals include eight-channel PWM timer with motor control support, two 2-channel general-purpose timers (one with quadrature decoder), real-time clock, carrier modulator transmitter, USB OTG controller with on-chip transceiver, four UARTs, I²C, SPI, I²S, and analog modules comprising a 16-bit SAR ADC, two analog comparators with integrated 6-bit DACs, and voltage reference - all operating across the full 1.71–3.6 V supply range.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (7 mm × 7 mm), 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 MK22DX128VLF5, MK22FN512VLH12 offers 4× more flash and 2.4× higher clock speed but removes FlexMemory - making it unsuitable for applications needing EEPROM-like data retention. K22F51212VLH12 improves USB reliability and reduces active power, yet shares the same architectural trade-off on nonvolatile storage flexibility.

Availability

MK22DX128VLF5 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, USB-capable HMIs, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MK22DX128VLF5 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 MK22DX128VLF5 belongs to the Kinetis K22 family - engineered for cost-sensitive, low-power embedded control applications demanding DSP acceleration, mixed-signal integration, and robust operation in harsh environments.

FAQ

What is the maximum operating frequency of the MK22DX128VLF5?

The MK22DX128VLF5 operates at a maximum system and core clock frequency of 50 MHz. This is specified under normal run mode conditions with VDD = 1.71–3.6 V and ambient temperature from –40°C to +105°C. The device maintains full peripheral functionality-including USB OTG, ADC, and timers-at this speed, and its ARM Cortex-M4 core delivers 1.25 Dhrystone MIPS per MHz for deterministic real-time performance. MK22DX128VLF5 does not support overclocking beyond 50 MHz.

Does the MK22DX128VLF5 include hardware encryption or security features?

The MK22DX128VLF5 includes a hardware CRC module for fast cyclic redundancy checks and a factory-programmed 128-bit unique identification number per chip - useful for device authentication and secure boot binding. However, it does not integrate AES, SHA, or TRNG engines. Security-critical applications requiring cryptographic acceleration should consider later Kinetis families (e.g., K8x) or external secure elements. MK22DX128VLF5 relies on software-based crypto libraries for encryption tasks.

What package type and pin count does the MK22DX128VLF5 use?

The MK22DX128VLF5 uses a 48-pin LQFP package (7 mm × 7 mm), identified by the "LF" suffix in its part number. It has 46 usable GPIO pins with extensive peripheral multiplexing, plus dedicated power, ground, reset, and crystal connections. This package supports reflow soldering per JEDEC J-STD-020 (MSL 3) and is compatible with standard PCB assembly processes. MK22DX128VLF5 is not available in QFN or BGA variants.

Can the MK22DX128VLF5 operate from a single 3.3 V supply?

Yes, the MK22DX128VLF5 operates fully within a 3.3 V supply (1.71–3.6 V range), supporting all peripherals including USB OTG, ADC, and high-speed timers. At 3.3 V, it achieves rated 50 MHz performance, consumes ~13 mA in RUN mode (all clocks disabled), and maintains full functionality across –40°C to +105°C. MK22DX128VLF5 requires separate VDDA and VDD decoupling per datasheet layout guidance to ensure analog accuracy and digital stability.

What development tools support the MK22DX128VLF5?

The MK22DX128VLF5 is supported by NXP's MCUXpresso SDK and IDE, Kinetis Design Studio (legacy), and third-party tools including IAR Embedded Workbench and Keil MDK. Hardware debug interfaces include SWD and JTAG via CMSIS-DAP or OpenSDA circuits. Official evaluation boards such as the FRDM-K22F provide pin-compatible access to MK22DX128VLF5 peripherals. MK22DX128VLF5 firmware can be programmed via EzPort, SWD, or USB HID bootloader - no external programmer required for basic development.