NXP Semiconductors MK22FX512VLQ12

Overview

MK22FX512VLQ12 from NXP Semiconductors (formerly Freescale) is a 120 MHz ARM Cortex-M4-based microcontroller with FPU, optimized for cost-sensitive embedded applications requiring USB connectivity, low-power operation, and floating-point processing. It integrates 512 KB flash, 128 KB SRAM, dual 16-bit ADCs, two 12-bit DACs, CAN, USB OTG 2.0 with integrated 3.3 V/120 mA LDO, and operates from –40°C to 105°C in 144-pin LQFP.

For engineers reviewing the MK22FX512VLQ12 datasheet, MK22FX512VLQ12 pinout, MK22FX512VLQ12 application, or MK22FX512VLQ12 equivalent, key selection considerations include its 120 MHz Cortex-M4+FPU performance, USB OTG + CAN dual-protocol support, ultra-low static power (5.1 μA with full state retention), 144-pin LQFP package compatibility, and industrial temperature grade.

Technical Context

The MK22FX512VLQ12 implements a high-efficiency ARM Cortex-M4 core with hardware FPU and DSP extensions, delivering 1.25 Dhrystone MIPS/MHz. Its clock system includes configurable PLL, FLL, and multiple internal oscillators supporting dynamic frequency scaling across run, VLPR, STOP, and VLLS modes.

System-level integration includes a 16-channel DMA controller, memory protection unit (MPU), hardware CRC module, 128-bit unique chip ID, and FlexMemory architecture enabling configurable FlexNVM/FlexRAM partitioning-though this specific variant (MK22FX512VLQ12) does not include FlexNVM per ordering information.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MK22FX512VLQ12, MK22FN1M0VLQ12 offers double flash capacity with zero architectural or pinout change, while KEA128AMLH4 trades USB/CAN, FPU, and performance for lower BOM cost and footprint-making it unsuitable for direct replacement in protocol-rich or compute-intensive roles.

Availability

MK22FX512VLQ12 is available at Aetrix Electronics and suitable for industrial motor control, USB-capable HMI terminals, automotive body controllers, and smart energy metering gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MK22FX512VLQ12 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, IoT, and mobile applications, with deep expertise in ARM-based microcontrollers and edge processing.

The Kinetis K22F family-including MK22FX512VLQ12-is designed for cost-sensitive, low-power embedded systems demanding USB connectivity, real-time control, and industrial-grade reliability in compact LQFP packages.

FAQ

What is the maximum operating frequency of the MK22FX512VLQ12?

The MK22FX512VLQ12 operates at up to 120 MHz using its ARM Cortex-M4 core with FPU. This frequency is achievable when the Phase-Locked Loop (PLL) is configured in PEE mode with an external 8–32 MHz crystal. The core maintains full peripheral functionality-including USB OTG and CAN-at this speed, and the device delivers 1.25 Dhrystone MIPS per MHz for deterministic real-time performance. MK22FX512VLQ12 supports dynamic clock scaling down to 4 MHz in VLPR mode for ultra-low-power operation.

Does the MK22FX512VLQ12 include FlexNVM or FlexRAM?

No, the MK22FX512VLQ12 does not include FlexNVM or FlexRAM. According to the official K22F Data Sheet Rev 4 and ordering information, only FlexMemory variants (e.g., MK22FN1M0VLQ12) integrate up to 128 KB FlexNVM and 4 KB FlexRAM. The MK22FX512VLQ12 provides fixed 512 KB program flash and 128 KB SRAM, with no user-reconfigurable nonvolatile memory partitioning capability. MK22FX512VLQ12 relies on standard flash for code and data storage.

What USB capabilities does the MK22FX512VLQ12 support?

The MK22FX512VLQ12 integrates a full-featured USB 2.0 On-The-Go (OTG) controller supporting both Low-Speed (1.5 Mbps) and Full-Speed (12 Mbps) operation. It includes an embedded 3.3 V, 120 mA LDO regulator to power external USB circuitry, eliminating the need for an external regulator in self-powered designs. The device also supports USB Device Charger Detection (DCD) for BC1.2 compliance. MK22FX512VLQ12 supports standard USB classes including CDC, HID, and MSC via NXP's KSDK middleware.

What is the lowest power consumption mode available on the MK22FX512VLQ12?

The MK22FX512VLQ12 achieves its lowest power consumption in Very-Low-Leakage Stop Mode 0 (VLLS0) with POR detect disabled, drawing just 268 nA at 3.0 V and –40°C to 25°C ambient. In this mode, the RTC remains active, RAM content is retained, and wake-up occurs in 5 μs via LLWU inputs. For applications requiring even faster wake-up or peripheral activity, VLLS2 (2.0 μA) or LLS (5.1 μA with full state retention) offer trade-offs between leakage and responsiveness. MK22FX512VLQ12's multi-tiered low-power architecture enables years of operation on coin-cell batteries.

Is the MK22FX512VLQ12 pin-compatible with other K22 family members in the same package?

Yes, the MK22FX512VLQ12 is pin-compatible with other K22F devices in the 144-pin LQFP package, including MK22FN1M0VLQ12, MK22FX512VMD12, and MK22FN1M0VMD12. All share identical pin assignments, electrical characteristics, and mechanical dimensions (20 mm × 20 mm, 0.5 mm pitch). This allows direct PCB reuse across flash-size variants and package types (LQFP vs. BGA), provided firmware accommodates memory map differences. MK22FX512VLQ12 requires no layout changes when substituted for these compatible parts.