NXP Semiconductors MK22FN256VDC12

Overview

MK22FN256VDC12 from NXP Semiconductors is a 120 MHz ARM Cortex-M4 microcontroller with FPU, 256 KB flash and 48 KB RAM, optimized for low-power USB-enabled embedded systems. It delivers 1.25 DMIPS/MHz, supports crystal-less USB FS operation, and operates from 1.71–3.6 V across –40 to 105°C - used in industrial gateways requiring real-time control, secure firmware updates, and dual ADC acquisition.

For engineers reviewing the MK22FN256VDC12 datasheet, MK22FN256VDC12 pinout, MK22FN256VDC12 application, or MK22FN256VDC12 equivalent, key selection criteria include its 121-pin XFBGA package, 70 GPIOs, integrated USB LDO, ultra-low 120 nA VLLS0 current, and dual 16-bit SAR ADCs with 1.2 MS/s sampling.

Technical Context

The MK22FN256VDC12 implements a multi-layer clock system with three internal oscillators (32 kHz, 4 MHz, 48 MHz), two crystal inputs (32 kHz RTC + 3–32 MHz main), and a programmable MCG with PLL/FLL for precise frequency synthesis up to 120 MHz. Its power architecture supports seven low-power modes including VLLS0 (120 nA) with full state retention and 6 µs wake-up.

It integrates dual 16-bit SAR ADCs (1.2 MS/s at 12-bit), one 12-bit DAC, two analog comparators with embedded 6-bit DACs, and hardware CRC - all operating under independent voltage reference and configurable power domains. USB OTG 2.0 includes on-chip transceiver and embedded 3.3 V/120 mA LDO.

Key Specifications

Pinout & Package

Package: 121-pin XFBGA (8 mm × 8 mm, 0.65 mm pitch, 0.5 mm height). Pinout validated per NXP document 98ASA00595D and K22P121M120SF8RM Section 5.3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK22FN256VDC12, MK22FN256VLL12 trades package density and thermal dissipation for assembly flexibility, while STM32F411RE offers greater memory headroom at the cost of added BOM complexity for USB power regulation.

Availability

MK22FN256VDC12 is available at Aetrix Electronics and suitable for industrial sensor hubs, USB-capable edge gateways, and medical wearables requiring stable component supply, long-term lifecycle assurance, and automotive-grade temperature resilience.

Supply support for MK22FN256VDC12 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.

The Kinetis K22F product line targets cost-sensitive, low-power embedded systems requiring USB connectivity, high peripheral integration, and floating-point processing - designed specifically for industrial control, smart sensing, and secure edge devices.

FAQ

What is the maximum operating frequency of the MK22FN256VDC12?

The MK22FN256VDC12 features an ARM Cortex-M4 core with FPU rated for up to 120 MHz operation. This frequency is achievable using the internal PLL with an external 3–32 MHz crystal or the internal 48 MHz IRC, subject to voltage (1.71–3.6 V) and temperature (–40 to 105°C) compliance per NXP's K22P121M120SF8 datasheet Rev. 7. The MK22FN256VDC12 delivers 1.25 Dhrystone MIPS per MHz at this speed.

Does the MK22FN256VDC12 support crystal-less USB Full-Speed device operation?

Yes, the MK22FN256VDC12 supports crystal-less USB Full-Speed device mode using its internally calibrated 48 MHz IRC oscillator. This feature eliminates the need for an external 12 MHz crystal in USB peripheral applications, reducing BOM cost and PCB area. The MK22FN256VDC12 maintains ±0.25% frequency accuracy over temperature and voltage ranges as specified in the USB electrical characteristics section of the datasheet.

How many analog-to-digital converters does the MK22FN256VDC12 integrate, and what are their key specs?

The MK22FN256VDC12 integrates two independent 16-bit SAR ADC modules. Each supports up to 1.2 million samples per second in 12-bit mode with programmable sample time, hardware averaging, and configurable trigger sources. Both ADCs share a common accurate internal voltage reference and operate across the full –40 to 105°C range with guaranteed linearity and offset specifications per K22P121M120SF8RM Section 3.6.1.

What low-power modes are available on the MK22FN256VDC12, and what is the lowest achievable current draw?

The MK22FN256VDC12 supports seven low-power modes, including VLLS0 (Very-Low-Leakage Stop 0). In VLLS0 with POR detect circuit disabled, the MK22FN256VDC12 achieves as low as 120 nA typical current draw at 3.0 V and 25°C while retaining full register and RAM state. Wake-up occurs in 6 µs from VLLS2/VLLS3 or 140 µs from VLLS0/VLLS1, enabling rapid response to external events without sacrificing energy efficiency.

What package type and pin count does the MK22FN256VDC12 use?

The MK22FN256VDC12 uses a 121-pin XFBGA package measuring 8 mm × 8 mm with 0.65 mm pitch and 0.5 mm height (NXP package drawing 98ASA00595D). This fine-pitch ball grid array provides optimal thermal performance and board space efficiency for high-density industrial and portable designs, supporting all 70 GPIOs and full peripheral routing as defined in the K22F pin multiplexing table.