NXP Semiconductors MKS22FN256VLL12
- Part No.:
- MKS22FN256VLL12
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MKS22FN256VLL12.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MKS22FN256VLL12 from NXP Semiconductors is a 120 MHz ARM® Cortex®-M4 microcontroller with 256 KB flash, 64 KB SRAM, dual FlexCAN interfaces, USB FS OTG with crystal-less operation, and 66 GPIOs in 100-pin LQFP. It targets automotive body control, industrial PLC I/O modules, and smart sensor hubs requiring real-time CAN communication and low-power mixed-signal processing.
For engineers reviewing the MKS22FN256VLL12 datasheet, MKS22FN256VLL12 pinout, MKS22FN256VLL12 application, or MKS22FN256VLL12 equivalent, key selection criteria include dual CAN 2.0B support, 16-bit ADC (17 SE/4 DP channels, ≤13-bit @1.2 Msps), 12-bit DAC, FlexIO configurability for UART/I²S/SPI/PWM, and –40 to 105 °C operation with 1.71–3.6 V supply.
Technical Context
The MKS22FN256VLL12 implements a dual-FlexCAN architecture compliant with ISO 11898-1 and CAN 2.0B, enabling concurrent high-speed (up to 1 Mbit/s) and fault-tolerant vehicle network nodes. Its clock system integrates MCG with FLL/PLL, 32 kHz RTC oscillator, and IRC48M for USB timing-supporting crystal-less USB FS OTG operation without external 48 MHz source.
Power management includes VLPR/VLPW/Stop/VLPS/LLS/VLLS modes with selective peripheral retention: RTC, LPTMR, CMP, ADC, and FlexCAN remain active in VLPS; LLWU and LPTMR wake from LLS/VLLS. The eDMA controller supports 16-channel asynchronous transfers with DMAMUX routing to all peripherals except core modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4 @ 120 MHz with single-precision FPU and DSP extensions - delivers 150 DMIPS and enables real-time motor control algorithms. |
| Memory | 256 KB embedded flash (2 KB pages, 32 protected regions) + 64 KB SRAM - supports secure firmware updates and large buffer storage for CAN message queues. |
| Analog | 16-bit ADC (17 single-ended / 4 differential inputs, ≤13-bit @1.2 Msps) + 12-bit DAC - enables high-resolution sensor acquisition and analog actuator control in same device. |
| Communication | Dual FlexCAN (ISO 11898-1, CAN 2.0B), USB FS OTG (crystal-less), 3× UART (1× ISO7816), 2× LPI2C (5 Mbit/s), 2× SPI (30 Mbit/s), 2× I2S - supports multi-protocol gateway functions. |
| Timers & Control | 3× TPM (6/2/2 channels), LPTMR, PIT, PDB, and programmable delay block - provides precise PWM generation, time-stamped event capture, and synchronized waveform control. |
| Operating Range | 1.71–3.6 V supply voltage, –40 to 105 °C ambient temperature - qualified for under-hood automotive and industrial edge environments. |
| Package | 100-pin LQFP (14×14×1.7 mm, 0.5 mm pitch) with 66 GPIOs - provides full peripheral access and thermal performance for convection-cooled designs. |
Pinout & Package
Package: 100-pin LQFP (14×14×1.7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power supply and ground | Multiple dedicated pairs ensure stable 1.2 V core rail and reduce switching noise coupling into analog sections. |
| VDDA, VSSA | Analog power supply and ground | Isolated analog domain pins enable clean 3.3 V reference for 16-bit ADC/DAC operation with <1 LSB INL. |
| PTA0–PTA31, PTB0–PTB15, PTC0–PTC17, PTD0–PTD15, PTE0–PTE25 | GPIO bank terminals | 66 total GPIOs with configurable pull-up/down, slew rate, and drive strength - support multiplexed peripheral signals including CAN_TX/RX, UART, SPI, I2S, and FlexIO. |
| CAN0_TX, CAN0_RX, CAN1_TX, CAN1_RX | Dual CAN transceiver interface | Dedicated differential pair pins per FlexCAN module - require external CAN transceivers and termination for bus compliance. |
| USB_DP, USB_DM | USB Full-Speed differential pair | On-chip transceiver supports crystal-less operation using internal IRC48MCLK - eliminates need for external 48 MHz crystal in cost-sensitive designs. |
| ADC0_SE0–ADC0_SE16, ADC0_DP0–ADC0_DP3 | Analog input channels | 17 single-ended and 4 differential ADC inputs mapped across PORTA/E - support simultaneous sampling and hardware-triggered conversions via PDB. |
Key Features
| Feature | Design Value |
|---|---|
| Dual FlexCAN modules | Enables independent CAN FD-ready networks (ISO 11898-1/CAN 2.0B) on single chip - reduces BOM count in automotive gateway or industrial fieldbus concentrators. |
| FlexIO configurable peripherals | Programmable logic engine supporting UART, I²S, SPI, PWM, and custom protocols - replaces discrete glue logic and simplifies PCB layout for legacy interface bridging. |
| Crystal-less USB FS OTG | Internal IRC48M oscillator meets USB full-speed timing requirements without external crystal - cuts component count and board space in portable and space-constrained applications. |
| Low-power operation modes | VLPS mode draws <2 µA with RTC, LPTMR, and FlexCAN active - extends battery life in always-on sensor nodes while retaining CAN wakeup capability. |
| Hardware security modules | CRC engine, 128-bit UID, RNG, and Flash Access Control (FAC) - enables secure boot, firmware integrity verification, and IP protection for OEM firmware deployments. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and HVAC actuators in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Main MCU executing CAN-based command arbitration, PWM motor control, and analog sensor monitoring with deterministic 120 MHz real-time response. Use Value: Dual FlexCAN allows simultaneous communication with powertrain (CAN A) and comfort network (CAN B); 16-bit ADC resolves potentiometer position to ±0.1% accuracy. |
Use Scenario: Modular I/O extension unit for DIN-rail mounted PLCs handling analog inputs (4–20 mA), digital I/O, and fieldbus connectivity. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus RTU over RS-485 to local CAN or Ethernet via external PHY, with timestamped analog acquisition. Use Value: FlexIO implements custom serial protocols for legacy sensors; 66 GPIOs support hot-swappable terminal blocks; LQFP package enables conformal coating for harsh environments. |
| Smart Sensor Hub | Medical Infusion Pump Controller |
Use Scenario: Edge node aggregating data from multiple MEMS accelerometers, temperature, and humidity sensors for predictive maintenance analytics. IC Role / Device Role / Timing Role: Low-power data concentrator performing sensor fusion, local FFT analysis, and buffered CAN/USB uploads during periodic wake cycles. Use Value: VLPS mode with RTC wakeup every 100 ms consumes <2.5 µA average; 12-bit DAC drives precision current sources for 4–20 mA loop calibration. |
Use Scenario: Safety-critical infusion pump managing stepper motor positioning, pressure sensing, flow rate calculation, and HMI feedback. IC Role / Device Role / Timing Role: Real-time controller executing closed-loop PID algorithms at 1 kHz, validating sensor inputs via CRC, and enforcing watchdog timeouts. Use Value: Hardware CRC and flash access control prevent unauthorized firmware modification; 16-bit ADC achieves <0.05% FS accuracy for pressure transducer readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKS22FN256VLH12 | 64-pin LQFP, 40 GPIOs, 14 SE/2 DP ADC channels, same core/peripherals but reduced I/O and analog channel count | Suitable for space-constrained designs where full 100-pin I/O is unnecessary, e.g., compact motor drivers or simple CAN gateways | Select when PCB area or BOM cost reduction outweighs need for 66 GPIOs or 17 ADC inputs. |
| MKS20FN256VLL12 | Same 100-pin LQFP package and memory, but only one FlexCAN module and no DAC | Targeted at cost-sensitive CAN-only applications without analog output requirements, such as basic telematics or fleet tracking units | Choose when dual CAN and DAC are not required, and lower unit cost is prioritized over feature headroom. |
Compared with MKS22FN256VLH12, the MKS22FN256VLL12 offers 26 additional GPIOs and 3 more ADC channels for complex I/O expansion; versus MKS20FN256VLL12, it adds a second CAN interface and 12-bit DAC essential for closed-loop analog control systems.
Availability
MKS22FN256VLL12 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and medical infusion pump controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MKS22FN256VLL12 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, with deep expertise in ARM-based microcontrollers and automotive-grade reliability.
The MKS22FN256VLL12 belongs to the Kinetis KS22 family, designed specifically for cost-optimized, low-power automotive and industrial control applications demanding dual CAN, rich analog integration, and robust functional safety features.
FAQ
What is the maximum operating frequency and core architecture of the MKS22FN256VLL12?
The MKS22FN256VLL12 features a 120 MHz ARM Cortex-M4 core with integrated single-precision floating-point unit (FPU) and DSP extensions. This delivers 1.25 Dhrystone MIPS per MHz and enables real-time signal processing tasks such as motor control algorithms and sensor fusion without external coprocessors. The MKS22FN256VLL12 maintains full performance across its –40 to 105 °C operating range.
Does the MKS22FN256VLL12 support crystal-less USB operation?
Yes, the MKS22FN256VLL12 integrates an IRC48M internal oscillator that meets USB Full-Speed (12 Mbit/s) timing specifications without requiring an external 48 MHz crystal. This capability is confirmed in the official NXP KS22 data sheet Rev. 3.1 and reduces bill-of-materials cost and PCB footprint for portable and space-constrained designs using the MKS22FN256VLL12.
How many CAN interfaces does the MKS22FN256VLL12 include, and what standards do they support?
The MKS22FN256VLL12 includes two independent FlexCAN modules compliant with ISO 11898-1 and CAN 2.0B protocol specifications. Each supports bit rates up to 1 Mbit/s and features message buffers, FIFOs, and error counters. This dual-CAN capability is explicitly documented for the KS22 series (versus single CAN in KS20), making the MKS22FN256VLL12 suitable for automotive gateway or industrial redundancy applications.
What analog peripherals are integrated into the MKS22FN256VLL12?
The MKS22FN256VLL12 integrates a 16-bit ADC with up to 17 single-ended and 4 differential input channels, capable of ≤13-bit resolution at 1.2 Msps; a 12-bit DAC; and an analog comparator with 6-bit DAC. These are fully supported in the 100-pin LQFP package (MKS22FN256VLL12), unlike the 48-QFN variant where DAC and I2S are omitted. All analog blocks share dedicated VDDA/VSSA rails for noise isolation.
What low-power modes are available on the MKS22FN256VLL12, and which peripherals remain active in VLPS mode?
The MKS22FN256VLL12 supports VLPS (Very Low Power Stop) mode with typical current draw below 2 µA. In VLPS, the RTC, LPTMR, CMP, ADC, OSC, TPM, FlexIO, LPUART, LPI2C, USB, and DMA remain operational while the core and most clocks are gated. Wake-up is handled by AWIC using configured interrupt sources. This behavior is verified in Section 2.1.8 of the KS22 data sheet Rev. 3.1 and applies directly to the MKS22FN256VLL12.
MKS22FN256VLL12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- Kinetis KS22
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, 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:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 1x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKS22FN256VLL12 FAQ
1.How can I place an order for MKS22FN256VLL12 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKS22FN256VLL12 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 MKS22FN256VLL12 reliable?
The price and inventory of MKS22FN256VLL12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKS22FN256VLL12 is usually 5 days.
3.What payment methods are accepted for MKS22FN256VLL12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKS22FN256VLL12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKS22FN256VLL12?
MKS22FN256VLL12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKS22FN256VLL12 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 MKS22FN256VLL12?
For technical support, including MKS22FN256VLL12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKS22FN256VLL12 requirements.
6.How does Aetrix verify that MKS22FN256VLL12 is sourced from the original manufacturer or authorized distributors?
All MKS22FN256VLL12 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 MKS22FN256VLL12 meets industry standards.
7.What is the process for return or replacement of MKS22FN256VLL12?
All MKS22FN256VLL12 units undergo pre-shipment inspection (PSI). If there is an issue with MKS22FN256VLL12, 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 MKS22FN256VLL12 part is unused and in its original packaging.
Return procedure for MKS22FN256VLL12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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