NXP Semiconductors MK22FN256VMP12

Overview

MK22FN256VMP12 from NXP Semiconductors is a 120 MHz ARM Cortex-M4 microcontroller with FPU, 256 KB flash, 48 KB RAM, and 40 GPIOs in a 64-pin MAPBGA package. It integrates USB LS/FS OTG 2.0 with embedded 3.3 V LDO, dual 16-bit SAR ADCs (1.2 MS/s), 12-bit DAC, and low-power modes down to 120 nA - deployed in industrial sensor gateways requiring real-time signal processing and USB device connectivity.

For engineers reviewing the MK22FN256VMP12 datasheet, MK22FN256VMP12 pinout, MK22FN256VMP12 application, or MK22FN256VMP12 equivalent, key selection criteria include its 64-pin 5×5 mm MAPBGA footprint, USB crystal-less operation, -40°C to 105°C extended temperature rating, and verified support for Kinetis SDK v2.x and MCUXpresso IDE.

Technical Context

The MK22FN256VMP12 implements a multi-oscillator clock system with two crystal oscillators (32 kHz RTC + 3–32 MHz main), three internal oscillators (32 kHz, 4 MHz, 48 MHz), and a multi-purpose clock generator featuring both PLL and FLL for flexible frequency synthesis. Its power architecture supports seven low-power modes including VLLS0 (120 nA) and VLPS (4.5 µA), with 6 µs wakeup from static mode and full state retention.

Security is enforced via hardware CRC module, 128-bit unique chip ID, hardware random-number generator, and flash access control. Analog subsystem includes two independent 16-bit SAR ADCs with simultaneous sampling capability, one 12-bit DAC, two analog comparators with integrated 6-bit DACs, and an accurate internal voltage reference.

Key Specifications

Pinout & Package

Package: 64-pin MAPBGA (MP), 5 mm × 5 mm × 1.2 mm, 0.5 mm pitch. Pinout validated per NXP document 98ASA00420D and K22F Signal Multiplexing Table (Rev. 7, Section 5.1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK22FN256VMP12, MK22FN512VLH12 offers double flash/RAM in LQFP but forfeits the 5×5 mm MAPBGA footprint, while STM32F411REY6TR provides higher density in WLCSP but demands external USB power conditioning and crystal - making MK22FN256VMP12 optimal for compact, self-contained USB device designs with extended temperature needs.

Availability

MK22FN256VMP12 is available at Aetrix Electronics and suitable for industrial sensor gateways, USB-capable edge controllers, and smart energy meter interfaces requiring stable component supply across automotive-grade temperature ranges and long-term production cycles.

Supply support for MK22FN256VMP12 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 Kinetis K22F product line targets cost-sensitive, low-power applications requiring USB connectivity, high peripheral integration, and floating-point performance - specifically engineered for industrial automation, building controls, and portable medical devices.

FAQ

What is the maximum operating frequency of the MK22FN256VMP12 core?

The MK22FN256VMP12 features a 120 MHz ARM Cortex-M4 core with FPU. This maximum frequency is achievable when the MCG is configured in PEE mode with a 32 MHz external crystal and PLL enabled. The core delivers 1.25 Dhrystone MIPS per MHz, and sustained operation at 120 MHz requires VDD ≥ 2.7 V and junction temperature ≤ 105°C per datasheet Section 2.3.1.

Does the MK22FN256VMP12 support USB device operation without an external crystal?

Yes, the MK22FN256VMP12 supports USB full-speed device crystal-less operation using its internal 48 MHz IRC trimmed to ±0.25% accuracy. This capability eliminates the need for an external 12 MHz crystal in USB device mode, reducing BOM cost and PCB area. The feature is enabled via USBCTRL_REG[USBVREN] and requires proper calibration sequence per K22P121M120SF8RM Chapter 47.

How many analog-to-digital converters does the MK22FN256VMP12 integrate, and what are their key specs?

The MK22FN256VMP12 integrates two independent 16-bit SAR ADCs. Each supports up to 1.2 MS/s in 12-bit mode with programmable sample time, hardware averaging, and simultaneous sampling capability. They share a common reference (VREFH/VREFL) and support differential input pairs. Real-world performance includes INL ≤ ±1.5 LSB and SNR ≥ 70 dB at 100 kS/s, as specified in K22P121M120SF8 Section 3.6.1.

What low-power modes are available on the MK22FN256VMP12, and what is the lowest current draw?

The MK22FN256VMP12 supports seven low-power modes: RUN, WAIT, STOP, VLPR, VLPW, VLPS, and VLLSx. The lowest static current is 120 nA in VLLS0 mode with POR detect circuit disabled, measured at 3.0 V and 25°C (Table 6, K22P121M120SF8 Rev. 7). Wake-up latency is 6 µs from VLPS and 80 µs from VLLS2, enabling rapid response to external interrupts while preserving RAM and register state.

Is the MK22FN256VMP12 pin-compatible with other K22F variants like MK22FN256VLL12?

No, the MK22FN256VMP12 is not pin-compatible with MK22FN256VLL12. The MK22FN256VMP12 uses a 64-pin MAPBGA (5×5 mm), while MK22FN256VLL12 uses a 100-pin LQFP (14×14 mm). Although both belong to the K22F family and share identical peripheral sets and register maps, their physical pin counts, layouts, and signal assignments differ significantly - requiring separate PCB designs and layout validation for each package variant.