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NXP Semiconductors MK22FN256VLL12R
- Part No.:
- MK22FN256VLL12R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MK22FN256VLL12R.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,234
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Product details
Overview
MK22FN256VLL12 from NXP Semiconductors is a 120 MHz ARM Cortex-M4-based microcontroller with FPU, 256 KB flash, 48 KB RAM, and 66 GPIOs in 100-pin LQFP package. It integrates USB LS/FS OTG 2.0 with embedded 3.3 V/120 mA LDO, dual 16-bit SAR ADCs (1.2 MS/s), and low-power modes down to 120 nA - deployed in industrial sensor hubs requiring USB connectivity and deterministic real-time control.
For engineers reviewing the MK22FN256VLL12 datasheet, MK22FN256VLL12 pinout, MK22FN256VLL12 application, or MK22FN256VLL12 equivalent, key selection criteria include USB crystal-less FS device operation, 105°C ambient temperature rating, 1.71–3.6 V supply range, and verified VLLS0 static current of 0.40 µA at -40°C to 25°C with POR enabled.
Technical Context
The MK22FN256VLL12 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 precise frequency synthesis and jitter-tolerant USB timing. Its memory subsystem includes 256 KB on-chip flash with EzPort serial programming interface and preprogrammed flashloader for factory in-system programming.
Power management leverages seven low-power modes - including VLLS0 (0.40 µA typ) and VLPS (4.5 µA typ) - with configurable wake-up sources, independent watchdogs, and hardware CRC acceleration. Analog integration comprises two 16-bit SAR ADCs, one 12-bit DAC, two analog comparators with integrated 6-bit DACs, and an accurate internal voltage reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4 with FPU, 120 MHz max - delivers 1.25 Dhrystone MIPS/MHz for real-time signal processing and floating-point math in motor control or sensor fusion. |
| Memory | 256 KB flash + 48 KB SRAM - sufficient for USB stack, RTOS, and application firmware with field-upgrade capability via EzPort. |
| USB Interface | USB 2.0 LS/FS OTG with on-chip transceiver and embedded 3.3 V/120 mA LDO - enables self-powered device operation without external regulator; supports crystal-less FS mode. |
| ADC/DAC | Dual 16-bit SAR ADCs (1.2 MS/s @ 12-bit), one 12-bit DAC - supports simultaneous high-resolution analog acquisition and waveform generation in closed-loop systems. |
| Operating Range | 1.71–3.6 V supply, -40°C to +105°C ambient - qualified for industrial automation, automotive body electronics, and harsh-environment edge nodes. |
| Low-Power Modes | VLLS0: 0.40 µA (typ) with POR enabled; 6 µs wakeup from STOP - enables battery-powered applications with infrequent wake events and full state retention. |
| GPIO Count | 66 general-purpose I/O pins with configurable pull-ups/pull-downs (20–50 kΩ), high-drive capability on select pins - supports mixed-signal board-level interfacing and peripheral expansion. |
Pinout & Package
Package: 100-pin LQFP (14 × 14 × 1.4 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Separate digital/analog supplies with ≤0.1 V differential tolerance - mandatory for ADC/DAC accuracy and noise isolation. |
| USB0_DP / USB0_DM | USB 2.0 differential data pair | On-die transceiver supports full-speed (12 Mbps) and low-speed (1.5 Mbps); requires 27 Ω series resistors and 1.5 kΩ pull-up on DP for device enumeration. |
| XTAL / EXTAL | Main crystal oscillator inputs | Supports 3–32 MHz crystals; essential for USB PLL lock and high-precision timing - bypassed in crystal-less USB FS mode. |
| RTC_CLKIN / RTC_CLKOUT | 32 kHz RTC oscillator terminals | Accepts external 32.768 kHz crystal or CMOS input; enables calendar timekeeping and ultra-low-power wake-from-VLLS0. |
| PTA0–PTD7 (multiplexed) | General-purpose I/O with peripheral function mapping | 66 GPIOs support UART, SPI, I²C, I²S, PWM, quadrature decode, and ADC channel routing - configured via SIM_SCGC and PORT_PCR registers. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | Hardware-accelerated single-precision IEEE 754 arithmetic - reduces cycle count for FFT, PID, and sensor calibration algorithms by >5× vs software emulation. |
| Crystal-less USB FS mode | Eliminates external 12 MHz crystal and associated load capacitors - lowers BOM cost and PCB area in USB device-only applications. |
| Hardware CRC module | Configurable 16-/32-bit CRC engine supporting multiple polynomials - offloads checksum computation from CPU during firmware updates or communication packet validation. |
| Programmable delay block (PDB) | High-resolution timing trigger for synchronized ADC sampling, DAC updates, and PWM edge alignment - critical for motor phase current sensing and power converter control. |
| Independent watchdog monitors | Dual watchdogs (COP and SW) with separate clocks and reset domains - ensures fail-safe recovery in safety-critical industrial controllers even under clock fault conditions. |
Applications
| Industrial Sensor Hub | USB-Capable Data Logger |
|---|---|
Use Scenario: Compact environmental monitoring node collecting temperature, humidity, and pressure via I²C sensors, storing data locally, and uploading via USB mass storage class. IC Role / Device Role / Timing Role: Central controller managing sensor polling, SD card FAT32 file writes, USB enumeration, and low-power sleep between samples. Use Value: Crystal-less USB FS eliminates timing component; 105°C rating enables deployment near heat sources; 66 GPIOs support future sensor expansion. |
Use Scenario: Battery-powered field recorder capturing vibration spectra from MEMS accelerometers at 10 kHz, buffering in RAM, and transferring raw data over USB bulk transfer. IC Role / Device Role / Timing Role: Real-time acquisition controller with PDB-triggered ADC sampling, DMA-driven data movement, and USB endpoint FIFO management. Use Value: Dual 16-bit ADCs enable simultaneous channel capture; 120 MHz core sustains 10 kHz × 2-channel throughput with FFT post-processing; VLLS0 extends battery life to >1 year. |
| Smart HVAC Actuator | Medical Diagnostic Interface |
Use Scenario: Motorized damper controller receiving Modbus RTU commands over RS-485, driving H-bridge MOSFETs, and reporting position via analog feedback. IC Role / Device Role / Timing Role: Fieldbus gateway with UART-to-PWM translation, analog comparator-based end-stop detection, and thermal monitoring via internal temperature sensor. Use Value: Integrated comparators with 6-bit DAC eliminate external op-amp circuitry; 1.71–3.6 V operation matches wide-input DC-DC converters; -40°C to 105°C rating covers HVAC duct environments. |
Use Scenario: Portable ECG front-end adapter converting analog lead signals to digital stream, applying baseline wander correction, and presenting as USB HID device to tablet host. IC Role / Device Role / Timing Role: Signal conditioning SoC performing PGA gain control, 16-bit ADC sampling, FIR filtering, and USB HID report generation. Use Value: 12-bit DAC enables programmable reference voltage for electrode biasing; hardware CRC validates firmware integrity per IEC 62304; 120 nA VLLS0 meets portable device standby requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK22FN512VLH12 | 512 KB flash, 40 GPIOs, 64-pin LQFP - same core/peripherals but reduced I/O count and smaller package. | Suitable for space-constrained designs where flash headroom is prioritized over GPIO expansion. | Select when firmware size exceeds 256 KB and board layout favors 64-pin footprint. |
| STM32F405RGT6 | 168 MHz Cortex-M4F, 1 MB flash, 192 KB RAM, no integrated USB LDO - requires external 3.3 V regulator and 8 MHz crystal for USB. | Better suited for high-throughput applications needing larger memory or higher clock speed, but increases BOM and layout complexity. | Choose when >512 KB flash or >120 MHz performance is required, and external USB regulation is acceptable. |
Compared with MK22FN256VLL12, MK22FN512VLH12 trades GPIO count for flash capacity in a smaller package, while STM32F405RGT6 offers higher clock speed and memory at the cost of added external components for USB compliance and power delivery.
Availability
MK22FN256VLL12 is available at Aetrix Electronics and suitable for industrial sensor hubs, USB-capable data loggers, and smart HVAC actuators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MK22FN256VLL12 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, mobile, and communication infrastructure markets.
The Kinetis K22 family - including MK22FN256VLL12 - was designed for cost-sensitive, low-power embedded applications demanding USB connectivity, rich analog integration, and robust real-time performance in industrial and consumer edge devices.
FAQ
What is the maximum operating frequency and core type of the MK22FN256VLL12?
The MK22FN256VLL12 features a 120 MHz ARM Cortex-M4 core with integrated floating-point unit (FPU). It achieves 1.25 Dhrystone MIPS per MHz and supports DSP instructions for efficient signal processing. This performance level is sustained across its full operating voltage range of 1.71–3.6 V and temperature range of –40°C to +105°C, making MK22FN256VLL12 suitable for deterministic real-time control tasks in industrial environments.
Does the MK22FN256VLL12 support crystal-less USB Full-Speed device operation?
Yes, the MK22FN256VLL12 supports USB Full-Speed (12 Mbps) device mode without an external crystal via its internal oscillator trimming and clock recovery circuitry. This feature eliminates the need for a 12 MHz crystal and associated load capacitors, reducing BOM cost and PCB area. The USB interface includes an embedded 3.3 V/120 mA LDO, allowing MK22FN256VLL12 to operate as a self-powered USB device when VREGIN is supplied with 4.4–6.0 V.
How many GPIOs does the MK22FN256VLL12 provide, and what package is it in?
The MK22FN256VLL12 provides 66 general-purpose I/O pins in a 100-pin LQFP package (14 × 14 × 1.4 mm, 0.5 mm pitch). This package variant is designated by the "LL" suffix in the part number and is distinct from other K22F variants like the 64-pin LQFP (LH) or 121-pin XFBGA (DC). All 66 GPIOs support interrupt capability, configurable pull-ups/pull-downs (20–50 kΩ), and multiplexing with peripherals including UART, SPI, I²C, and ADC channels.
What low-power modes and minimum current consumption does the MK22FN256VLL12 offer?
The MK22FN256VLL12 supports seven low-power modes, including VLLS0 (Very Low-Leakage Stop Mode 0) with typical current consumption of 0.40 µA at –40°C to +25°C when POR detect is enabled. Wake-up time from STOP mode is 5.7 µs, and from VLLS0 is 6 µs. These capabilities make MK22FN256VLL12 ideal for battery-powered applications requiring long standby duration and rapid response, such as wireless sensor nodes and portable diagnostic tools.
What analog peripherals are integrated into the MK22FN256VLL12?
The MK22FN256VLL12 integrates two 16-bit SAR ADCs (1.2 MS/s in 12-bit mode), one 12-bit DAC, two analog comparators each with a built-in 6-bit DAC, and an accurate internal voltage reference. These resources enable high-fidelity signal acquisition, waveform generation, threshold detection, and precision biasing - all without external components. This analog integration is fully supported in MK22FN256VLL12's 100-pin LQFP package with dedicated VDDA/VSSA pins and ADC input multiplexing across multiple GPIOs.
MK22FN256VLL12R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- Kinetis K20
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART, USB, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 66
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 33x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK22FN256VLL12R FAQ
1.How can I place an order for MK22FN256VLL12R through Aetrix?
Please submit a Request for Quotation (RFQ) for MK22FN256VLL12R on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MK22FN256VLL12R reliable?
The price and inventory of MK22FN256VLL12R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK22FN256VLL12R is usually 5 days.
3.What payment methods are accepted for MK22FN256VLL12R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK22FN256VLL12R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK22FN256VLL12R?
MK22FN256VLL12R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK22FN256VLL12R order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MK22FN256VLL12R?
For technical support, including MK22FN256VLL12R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK22FN256VLL12R requirements.
6.How does Aetrix verify that MK22FN256VLL12R is sourced from the original manufacturer or authorized distributors?
All MK22FN256VLL12R products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MK22FN256VLL12R meets industry standards.
7.What is the process for return or replacement of MK22FN256VLL12R?
All MK22FN256VLL12R units undergo pre-shipment inspection (PSI). If there is an issue with MK22FN256VLL12R, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MK22FN256VLL12R part is unused and in its original packaging.
Return procedure for MK22FN256VLL12R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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