MK22FN512VLH12 - Kinetis K22 120MHz Cortex-M4F MCU 512KB Flash | NXP
MPN: MK22FN512VLH12 ✓ Hoạt độngMK22FN512VLH12 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MK22FN512VLH12 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MK22FN512VLH12 (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Operating Temperature, DAC.
MK22FN256VLH12
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MK22FN1M0VLH12
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MKV31F512VLH12
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MK22FX512VLH12
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MK20DX256VLH7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC56F82748VLH
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MK22FN512VLH12 Tỷ lệ tối đa & tính chất điện
| 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 |
| Điện áp cung cấp | 1.71 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +105 C |
| Hộp | 64-LQFP (10x10 mm) |
| Kiểu lắp đặt | 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 |
| Cấp MSL | 3 |
| Trạng thái RoHS | Compliant |
Cấu hình chân MK22FN512VLH12
| Chân 1 | PTE0 — GPIO / UART1_CTS / SPI1_PCS |
| Chân 2 | PTE1 — GPIO / UART1_RTS / SPI1_SCK |
| Chân 3 | PTE2 — GPIO / SPI1_SOUT |
| Chân 4 | PTE3 — GPIO / SPI1_SIN |
| Chân 5 | PTE4 — GPIO / SPI1_PCS0 |
| Chân 6 | PTE5 — GPIO / SPI1_PCS1 |
| Chân 7 | PTE6 — GPIO / SPI1_PCS2 |
| Chân 8 | VSS — Ground |
| Chân 9 | USB0_DP — USB Full-Speed Data Plus |
| Chân 10 | USB0_DM — USB Full-Speed Data Minus |
| Chân 11 | VOUT33 — USB 3.3V regulator output |
| Chân 12 | VREGIN — USB regulator input |
| Chân 13 | VDD — MCU supply voltage |
| Chân 14 | VSS — Ground |
| Chân 15 | PTA0 — GPIO / TSI0_CH1 / JTAG_TCLK |
| Chân 16 | PTA1 — GPIO / TSI0_CH2 / JTAG_TDI |
| Chân 17 | PTA2 — GPIO / TSI0_CH3 / JTAG_TDO |
| Chân 18 | PTA3 — GPIO / TSI0_CH4 / JTAG_TMS |
| Chân 19 | PTA4 — GPIO / NMI_b |
| Chân 20 | PTA5 — GPIO |
| Chân 21 | VDD — MCU supply voltage |
| Chân 22 | VSS — Ground |
| Chân 23 | PTA6 — GPIO |
| Chân 24 | PTA7 — GPIO |
| Chân 25 | PTB0 — GPIO / ADC0_SE8 |
| Chân 26 | PTB1 — GPIO / ADC0_SE9 |
| Chân 27 | PTB2 — GPIO / ADC0_SE12 |
| Chân 28 | PTB3 — GPIO / ADC0_SE13 |
| Chân 29 | PTB4 — GPIO |
| Chân 30 | PTB5 — GPIO |
| Chân 31 | PTB6 — GPIO |
| Chân 32 | PTB7 — GPIO |
| Chân 33 | PTC0 — GPIO / ADC0_SE14 |
| Chân 34 | PTC1 — GPIO / ADC0_SE15 |
| Chân 35 | PTC2 — GPIO / ADC0_SE4 |
| Chân 36 | PTC3 — GPIO / ADC0_SE5 |
| Chân 37 | VREFH — ADC high reference voltage |
| Chân 38 | VREFL — ADC low reference voltage |
| Chân 39 | VSSA — Analog ground |
| Chân 40 | PTC4 — GPIO |
| Chân 41 | PTC5 — GPIO |
| Chân 42 | PTC6 — GPIO |
| Chân 43 | PTC7 — GPIO |
| Chân 44 | PTD0 — GPIO |
| Chân 45 | PTD1 — GPIO |
| Chân 46 | PTD2 — GPIO |
| Chân 47 | PTD3 — GPIO |
| Chân 48 | PTD4 — GPIO |
| Chân 49 | PTD5 — GPIO |
| Chân 50 | PTD6 — GPIO |
| Chân 51 | PTD7 — GPIO |
| Chân 52 | PTE7 — GPIO |
| Chân 53 | PTE8 — GPIO |
| Chân 54 | PTE9 — GPIO |
| Chân 55 | PTE10 — GPIO |
| Chân 56 | PTE11 — GPIO |
| Chân 57 | PTE12 — GPIO |
| Chân 58 | VDD — MCU supply voltage |
| Chân 59 | VSS — Ground |
| Chân 60 | PTE13 — GPIO |
| Chân 61 | PTE14 — GPIO |
| Chân 62 | PTE15 — GPIO |
| Chân 63 | EXTAL32 — 32 kHz crystal oscillator input |
| Chân 64 | XTAL32 — 32 kHz crystal oscillator output |
Ứng dụng tiêu biểu
MK22FN512VLH12 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MK22FN512VLH12 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Integrated USB Full-Speed PHY saves BOM cost (vsMK22FN128VLL10)
- Higher core frequency for the same pinout (vsMK20DX256VLH7)
- Larger SRAM for USB device buffering (vsMK22FX512VLH12)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS and REACH compliant per NXP product page; industrial temperature grade -40C to +105C, not AEC-Q100 qualified. Halogen-free per NXP material declaration.