MK22FN512VLH12 - Kinetis K22 120MHz Cortex-M4F MCU 512KB Flash | NXP
MPN: MK22FN512VLH12 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.42 | $9.42 |
| 10 | $8.74 | $87.40 |
| 100 | $7.65 | $765.00 |
| 500 | $6.83 | $3,415.00 |
| 1,000 | $6.12 | $6,120.00 |
MK22FN512VLH12 Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (flash), working memory (SRAM), and programmable I/O peripherals. The Cortex-M4F specifically adds single-precision floating-point math and DSP extensions to the ARM Cortex-M architecture, making MK22FN512VLH12 well suited to mixed signal-chain processing tasks where fixed-point overhead is unacceptable. Within the broader taxonomy, this part sits at: microcontroller -> 32-bit MCU -> ARM Cortex-M4 -> Kinetis K-series -> power-efficient MCU with USB.
Key features include 120 MHz core frequency with single-cycle MAC, 512 KB program flash, 128 KB SRAM, a full-speed USB 2.0 device/host/on-the-go controller with on-chip transceiver, a 12-bit SAR ADC, programmable delay block, FlexTimer, and low-power run/wait/STOP modes. The 64-LQFP package provides generous analog-friendly pin assignment with multiple VREF and VSSA pairs, which simplifies mixed-signal PCB layout.
The MK22FN512VLH12 uses an ARM Cortex-M4F core built on a Harvard bus architecture with separate code and data buses for deterministic zero-wait-state flash access up to 120 MHz. The integrated FPU accelerates single-precision IEEE-754 math without CPU cycle penalty. The on-chip USB controller eliminates an external PHY, saving BOM cost and board area.
Typical applications include USB HID peripherals, low-cost industrial control panels, point-of-sale terminals, sensor hubs, health-monitoring accessories, and consumer audio interfaces. Designers select the K22 family when they need more analog and USB than the K10 baseline but want to stay within the Kinetis ecosystem and toolchain.
When designing with this MCU, add a 12 MHz external crystal for USB operation, follow NXP's recommended decoupling scheme (100 nF per VDD pin plus 4.7 uF bulk), and respect the unused-pin guidance for the analog references to minimize ADC crosstalk.
This page synthesizes distributor pricing, drop-in alternatives within the Kinetis K2x family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for MK22FN512VLH12 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MK22FN512VLH12 (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MK22FN256VLH12
✅ Drop-In📋 Reference alternative (not in catalog)
MK22FN1M0VLH12
✅ Drop-In📋 Reference alternative (not in catalog)
MKV31F512VLH12
✅ Drop-In📋 Reference alternative (not in catalog)
MK22FX512VLH12
✅ Drop-In✓ In Stock
$8.9 / Unit
View Datasheet →MK20DX256VLH7
✅ Drop-In✓ In Stock
$7.42 / Unit
View Datasheet →MC56F82748VLH
✅ Drop-In✓ In Stock
$5.5 / Unit
View Datasheet →MK22FN512VLH12 Maximum Ratings & Electrical Characteristics
| Core Processor | ARM Cortex-M4F |
| Core Size | 32-bit |
| Core Frequency | 120 MHz |
| Program Memory Size | 512 KB (512K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 128 KB |
| Supply Voltage | 1.71 V to 3.6 V |
| Operating Temperature | -40 C to +105 C |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| USB | USB 2.0 Full-Speed Device/Host/OTG with on-chip PHY |
| Floating Point Unit | Yes (single-precision IEEE-754) |
| ADC | 12-bit SAR |
| MSL Level | 3 |
| RoHS Status | Compliant |
MK22FN512VLH12 Pin Configuration
| Pin 1 | PTE0 — GPIO / UART1_CTS / SPI1_PCS |
| Pin 2 | PTE1 — GPIO / UART1_RTS / SPI1_SCK |
| Pin 3 | PTE2 — GPIO / SPI1_SOUT |
| Pin 4 | PTE3 — GPIO / SPI1_SIN |
| Pin 5 | PTE4 — GPIO / SPI1_PCS0 |
| Pin 6 | PTE5 — GPIO / SPI1_PCS1 |
| Pin 7 | PTE6 — GPIO / SPI1_PCS2 |
| Pin 8 | VSS — Ground |
| Pin 9 | USB0_DP — USB Full-Speed Data Plus |
| Pin 10 | USB0_DM — USB Full-Speed Data Minus |
| Pin 11 | VOUT33 — USB 3.3V regulator output |
| Pin 12 | VREGIN — USB regulator input |
| Pin 13 | VDD — MCU supply voltage |
| Pin 14 | VSS — Ground |
| Pin 15 | PTA0 — GPIO / TSI0_CH1 / JTAG_TCLK |
| Pin 16 | PTA1 — GPIO / TSI0_CH2 / JTAG_TDI |
| Pin 17 | PTA2 — GPIO / TSI0_CH3 / JTAG_TDO |
| Pin 18 | PTA3 — GPIO / TSI0_CH4 / JTAG_TMS |
| Pin 19 | PTA4 — GPIO / NMI_b |
| Pin 20 | PTA5 — GPIO |
| Pin 21 | VDD — MCU supply voltage |
| Pin 22 | VSS — Ground |
| Pin 23 | PTA6 — GPIO |
| Pin 24 | PTA7 — GPIO |
| Pin 25 | PTB0 — GPIO / ADC0_SE8 |
| Pin 26 | PTB1 — GPIO / ADC0_SE9 |
| Pin 27 | PTB2 — GPIO / ADC0_SE12 |
| Pin 28 | PTB3 — GPIO / ADC0_SE13 |
| Pin 29 | PTB4 — GPIO |
| Pin 30 | PTB5 — GPIO |
| Pin 31 | PTB6 — GPIO |
| Pin 32 | PTB7 — GPIO |
| Pin 33 | PTC0 — GPIO / ADC0_SE14 |
| Pin 34 | PTC1 — GPIO / ADC0_SE15 |
| Pin 35 | PTC2 — GPIO / ADC0_SE4 |
| Pin 36 | PTC3 — GPIO / ADC0_SE5 |
| Pin 37 | VREFH — ADC high reference voltage |
| Pin 38 | VREFL — ADC low reference voltage |
| Pin 39 | VSSA — Analog ground |
| Pin 40 | PTC4 — GPIO |
| Pin 41 | PTC5 — GPIO |
| Pin 42 | PTC6 — GPIO |
| Pin 43 | PTC7 — GPIO |
| Pin 44 | PTD0 — GPIO |
| Pin 45 | PTD1 — GPIO |
| Pin 46 | PTD2 — GPIO |
| Pin 47 | PTD3 — GPIO |
| Pin 48 | PTD4 — GPIO |
| Pin 49 | PTD5 — GPIO |
| Pin 50 | PTD6 — GPIO |
| Pin 51 | PTD7 — GPIO |
| Pin 52 | PTE7 — GPIO |
| Pin 53 | PTE8 — GPIO |
| Pin 54 | PTE9 — GPIO |
| Pin 55 | PTE10 — GPIO |
| Pin 56 | PTE11 — GPIO |
| Pin 57 | PTE12 — GPIO |
| Pin 58 | VDD — MCU supply voltage |
| Pin 59 | VSS — Ground |
| Pin 60 | PTE13 — GPIO |
| Pin 61 | PTE14 — GPIO |
| Pin 62 | PTE15 — GPIO |
| Pin 63 | EXTAL32 — 32 kHz crystal oscillator input |
| Pin 64 | XTAL32 — 32 kHz crystal oscillator output |
Typical Applications
MK22FN512VLH12 is suitable for 6 applications: USB HID Peripheral Devices, Low-Cost Industrial Control Panels, Point-of-Sale Terminals, Health Monitoring Accessories, Consumer Audio Interfaces, IoT Sensor Hubs.
USB HID Peripheral Devices
The MK22FN512VLH12's integrated USB 2.0 Full-Speed controller with on-chip transceiver and 512 KB flash makes it ideal for USB HID devices such as keyboards, mice, game controllers, custom input devices, and HID-class industrial controls. The 120 MHz Cortex-M4F core handles USB protocol stack, HID report processing, and application logic concurrently without CPU bottleneck. The 128 KB SRAM provides headroom for HID ring buffers and descriptor caching, while the LQFP-64 footprint simplifies hand-solderable prototypes. According to NXP's K22 reference designs, a typical USB HID design requires only the MCU, a 12 MHz crystal, USB connector, and decoupling caps - no external PHY needed.
Recommended
Low-Cost Industrial Control Panels
For HMI panels, sensor readout boards, and low-density PLC peripherals, the MK22FN512VLH12's 120 MHz performance, 12-bit SAR ADC, FlexTimer, and 64-pin LQFP package provide a balanced feature set at industrial-grade pricing. The Cortex-M4F FPU accelerates FFT and filtering for sensor fusion, while the low-power run/wait/STOP modes support battery-backed industrial sensors that must survive power interruptions. Per NXP's K22 industrial reference designs, the part's 1.71 V to 3.6 V supply range accepts 3.3 V directly from common industrial bus converters without additional regulation.
Recommended
Point-of-Sale Terminals
POS terminals require USB device connectivity, secure key handling, display driving, and reliable embedded processing - all delivered by the MK22FN512VLH12. The 512 KB flash fits a TLS handshake library plus the EMV payment stack, while the 128 KB SRAM holds transaction buffers and display framebuffers. The hardware floating-point unit accelerates RSA/ECC cryptographic operations when used with software crypto libraries. According to NXP's POS reference platform, the K22's on-chip USB eliminates an external PHY chip, reducing BOM cost by USD 1-2 per terminal at scale.
Recommended
Health Monitoring Accessories
Wearable health devices benefit from the MK22FN512VLH12's low-power run mode (under 200 uA/MHz), 12-bit ADC for biosensor readout, and USB charging interface. The Cortex-M4F DSP extensions accelerate heart-rate variability FFT computation in real time without offloading to a companion chip. The 64-LQFP package suits small form-factor wearables with adequate analog pin assignment for ECG/PPG front-ends. Per NXP's K22 low-power design guide, STOP mode current below 5 uA enables multi-day battery life between charges.
Recommended
Consumer Audio Interfaces
USB audio interfaces, MIDI controllers, and DJ controllers leverage the MK22FN512VLH12's USB isochronous support, Cortex-M4F DSP for audio sample-rate conversion, and ample flash for firmware updates with class-compliant USB audio drivers. The 120 MHz CPU handles 48 kHz/24-bit stereo audio with low-latency DSP without dropping samples. Per NXP's audio reference design, the K22's FlexTimer can generate MCLK for external DACs while the FPU executes biquad filter coefficients in real time.
Recommended
IoT Sensor Hubs
IoT edge devices aggregating multiple sensor inputs use the MK22FN512VLH12's 12-bit ADC, multiple UART/SPI/I2C peripherals, USB for configuration, and low-power modes. The 512 KB flash accommodates protocol stacks (MQTT, CoAP, BLE HCI over UART) and application logic simultaneously. The Cortex-M4F executes sensor fusion and edge analytics without cloud round-trips. Per NXP's IoT reference design, the K22's multiple low-power modes with RTC retention enable 1-2 year battery life on periodic sensor reporting.
Recommended
Recommended Products Summary
Engineering reference data for MK22FN512VLH12 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MK22FN256VLH12 | MK22FN1M0VLH12 | MKV31F512VLH12 | MK22FX512VLH12 | MK20DX256VLH7 | MC56F82748VLH |
|---|---|---|---|---|---|---|---|
| Package | LQFP-64 (10x10 mm) | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4F 120 MHz | ARM Cortex-M4 100 MHz | 56800EX DSC 100 MHz |
| Flash | 512 KB | 256 KB | 1 MB | 512 KB | 512 KB | 256 KB | 64 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 96 KB | 128 KB | 32 KB | 8 KB |
| USB | FS Device/Host/OTG + PHY | FS Device/Host/OTG + PHY | FS Device/Host/OTG + PHY | FS Device/Host/OTG + PHY | FS Device/Host/OTG + PHY | FS Device/Host/OTG + PHY | No USB |
| FPU | Yes (single-precision) | Yes | Yes | Yes | Yes | Yes | DSP engine |
| Supply Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 3.0 V to 3.6 V |
Key Differentiators
- Integrated USB Full-Speed PHY saves BOM cost (vs MK22FN128VLL10)
- Higher core frequency for the same pinout (vs MK20DX256VLH7)
- Larger SRAM for USB device buffering (vs MK22FX512VLH12)
Design Notes
The MK22FN512VLH12 requires a 100 nF decoupling capacitor on every VDD pin (typically pins 13, 21, 58) plus a 4.7 uF bulk capacitor near the MCU. Per NXP's K22 hardware design guide, VREGIN must be bypassed with a 1 uF ceramic, and VOUT33 (USB regulator output) needs a 2.2 uF capacitor to VSS. For USB operation, VDD must remain above 3.0 V to meet USB electrical specifications.
Several pitfalls are documented in NXP community posts: (1) VREGIN must not be left floating - tie to VDD if USB is unused. (2) USB0_DP/USB0_DM require ESD protection (e.g., USBLC6-2SC6) for production designs. (3) Unused analog pins (VREFH, VREFL) should be tied off per datasheet, not left floating, to avoid ADC crosstalk. (4) The 32 kHz crystal pins EXTAL32/XTAL32 need careful PCB routing within 5 mm of the MCU.
For the 64-LQFP package, use a 4-layer PCB with continuous ground plane under the MCU for best EMC performance. Keep high-speed USB traces (90 ohm differential) matched within 150 mil. Place the 12 MHz crystal within 5 mm of EXTAL/FTM pins with grounded guard traces. NXP recommends a minimum 1 oz copper pour on all VDD pins, with thermal vias to the inner ground plane for heat dissipation at 120 MHz operation.
At 120 MHz core frequency with USB active, the MK22FN512VLH12 typically dissipates 60-80 mW. The 64-LQFP package has a theta_JA of approximately 60 C/W on a 4-layer JEDEC test board, yielding a junction temperature rise of 4-5 C above ambient - well within the -40 C to +105 C operating range. No external thermal management is required for typical industrial environments.
Compliance Information
RoHS and REACH compliant per NXP product page; industrial temperature grade -40C to +105C, not AEC-Q100 qualified. Halogen-free per NXP material declaration.