MK20DX64VFT5 - Kinetis K20 ARM Cortex-M4 MCU, 50MHz, 64KB Flash | NXP
MPN: MK20DX64VFT5 ✓ Hoạt độngMK20DX64VFT5 Tóm tắt
Kinetis K20 microcontrollers are low-power ARM Cortex-M4 devices optimized for mixed-signal and USB-capable embedded applications. They sit within the broader Kinetis E-series family, which combines deterministic Cortex-M4 performance with low-power run, wait, and stop modes, a hardware CRC engine, and a rich mix of analog and digital peripherals. The K20 sub-family specifically targets designs that require USB 2.0 full-speed On-The-Go, segmented LCD control (option), and a small-form-factor QFN package for space-limited products.
The MK20DX64VFT5 features an ARM Cortex-M4 core with single-precision FPU, 64 KB program Flash, 16 KB SRAM, 29 general-purpose I/O, a 16-bit SAR ADC, 12-bit DAC, multiple timers (FTM, PIT, LPTMR, RTC), USB-OTG (full-speed), CAN, I2C, SPI, UART, and an integrated hardware CRC module. The 48-QFN-EP package provides a low-thermal-resistance path via the exposed pad, allowing the device to deliver full 50 MHz performance in industrial enclosures.
From an architecture standpoint, the K20 uses a Cortex-M4 core with a 3-stage pipeline, single-cycle MAC, and a tightly-coupled peripheral bridge that allows deterministic interrupt latency. The integrated voltage regulator and power-management controller support multiple low-power modes (Run, Wait, Stop, VLPR, VLPW, VLPS), enabling deep-sleep currents in the microamp range for battery-powered applications.
Typical applications include USB human-interface devices (HID) such as keyboards, mice, and game controllers, low-power industrial sensor nodes, building automation controllers, consumer appliances with segmented LCD displays, and portable medical point-of-care instruments. Its combination of USB-OTG, low-power modes, and compact QFN-EP package also makes it a fit for wearable fitness devices and small-form-factor IoT endpoints.
A key design consideration is decoupling: place a 0.1 uF ceramic capacitor as close as possible to each VDD/VSS pair, plus a bulk 4.7 uF capacitor on the main supply. The exposed pad (EP) must be soldered to a sufficiently large ground copper pour to meet -40C to +105C industrial temperature specs at full 50 MHz clock.
This page synthesizes distributor pricing (as of 2026-10-19), drop-in Kinetis alternatives, and practical design notes that complement the NXP K20 reference manual and datasheet.
Bộ thay thế dễ dàng lắp đặt cho MK20DX64VFT5 — 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 MK20DX64VFT5 (cùng hình factor và footprint) — khác nhau ở Connectivity, Package, Program Memory Size, RAM Size, Core Processor.
MK20DX128VFT5
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MK20DN64VFT5
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MK20DX64VLF5
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MKL15Z64VFT4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MKE04Z64VLD2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MK20DX64VFT5 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4 with single-precision FPU |
| Core Size | 32-bit |
| Maximum Clock Speed | 50 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM Size | 16 KB |
| Supply Voltage Range | 1.71 V to 3.6 V |
| I/O Pins | 29 |
| Khoảng nhiệt độ hoạt động | -40C to +105C (Industrial) |
| Hộp | 48-QFN-EP (7x7 mm) with exposed thermal pad |
| Kiểu lắp đặt | Surface Mount |
| Connectivity | USB OTG (Full-Speed), CAN, I2C, SPI, UART, I2S |
| ADC | 16-bit SAR ADC |
| DAC | 12-bit DAC |
| Timers | FTM, PIT, LPTMR, RTC |
| Security / Integrity | Hardware CRC module, 128-bit unique ID |
| Low-Power Modes | Wait, VLPR, VLPW, VLPS, Stop |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MK20DX64VFT5
| Chân 1 | PTD0 — General-purpose I/O / SPI0 PCS |
| Chân 2 | PTD1 — General-purpose I/O / SPI0 SCK |
| Chân 3 | PTD2 — General-purpose I/O / SPI0 MOSI |
| Chân 4 | PTD3 — General-purpose I/O / SPI0 MISO |
| Chân 5 | PTD4 — General-purpose I/O / FTM0_CH4 |
| Chân 6 | PTD5 — General-purpose I/O / FTM0_CH5 |
| Chân 7 | PTD6 — General-purpose I/O / FTM0_CH6 |
| Chân 8 | PTD7 — General-purpose I/O / FTM0_CH7 |
| Chân 9 | VSS — Ground |
| Chân 10 | VDD — Supply voltage (1.71-3.6 V) |
| Chân 11 | PTE0 — General-purpose I/O / UART1_CTS |
| Chân 12 | PTE1 — General-purpose I/O / UART1_RTS |
| Chân 13 | PTE2 — General-purpose I/O / SPI1_MOSI |
| Chân 14 | PTE3 — General-purpose I/O / SPI1_MISO |
| Chân 15 | PTE4 — General-purpose I/O / SPI1_PCS |
| Chân 16 | PTE5 — General-purpose I/O / SPI1_SCK |
| Chân 17 | PTE6 — General-purpose I/O / FTM0_CH6 |
| Chân 18 | PTE7 — General-purpose I/O / FTM0_CH7 |
| Chân 19 | PTA0 — General-purpose I/O / FTM0_CH0 |
| Chân 20 | PTA1 — General-purpose I/O / FTM0_CH1 |
| Chân 21 | PTA2 — General-purpose I/O / UART0_RX |
| Chân 22 | PTA3 — General-purpose I/O / UART0_TX |
| Chân 23 | PTA4 — General-purpose I/O / I2C0_SCL |
| Chân 24 | PTA5 — General-purpose I/O / I2C0_SDA |
| Chân 25 | VSS — Ground |
| Chân 26 | VDD — Supply voltage (1.71-3.6 V) |
| Chân 27 | PTB0 — General-purpose I/O / ADC0_SE0 |
| Chân 28 | PTB1 — General-purpose I/O / ADC0_SE1 |
| Chân 29 | PTB2 — General-purpose I/O / ADC0_SE2 |
| Chân 30 | PTB3 — General-purpose I/O / ADC0_SE3 |
| Chân 31 | PTB4 — General-purpose I/O / FTM1_CH0 |
| Chân 32 | PTB5 — General-purpose I/O / FTM1_CH1 |
| Chân 33 | PTB6 — General-purpose I/O / FTM1_CH2 |
| Chân 34 | PTB7 — General-purpose I/O / FTM1_CH3 |
| Chân 35 | PTC0 — General-purpose I/O / FTM2_CH0 |
| Chân 36 | PTC1 — General-purpose I/O / FTM2_CH1 |
| Chân 37 | PTC2 — General-purpose I/O / I2C1_SCL |
| Chân 38 | PTC3 — General-purpose I/O / I2C1_SDA |
| Chân 39 | PTC4 — General-purpose I/O / CAN0_TX |
| Chân 40 | PTC5 — General-purpose I/O / CAN0_RX |
| Chân 41 | PTC6 — General-purpose I/O / FTM2_CH4 |
| Chân 42 | PTC7 — General-purpose I/O / FTM2_CH5 |
| Chân 43 | USB_DP — USB D+ data line |
| Chân 44 | USB_DM — USB D- data line |
| Chân 45 | VOUT33 — USB regulator 3.3 V output |
| Chân 46 | RESET_b — Active-low reset input |
| Chân 47 | EXTAL — External crystal/clock input |
| Chân 48 | XTAL — External crystal output |
| Chân EP | EPAD — Exposed thermal pad - must be soldered to ground |
Ứng dụng tiêu biểu
MK20DX64VFT5 phù hợp cho 6 Áp dụngs: USB Human Interface Devices, Industrial Sensor Hubs, Portable Medical Devices, Building Automation Controllers, Consumer Appliance Controllers, IoT Edge Nodes with USB Connectivity.
USB Human Interface Devices
The MK20DX64VFT5 is well suited to USB Human Interface Device (HID) applications such as keyboards, mice, game controllers, and remote controls. Its integrated USB 2.0 full-speed OTG controller with internal PHY eliminates external PHY components and its 50 MHz Cortex-M4 core delivers enough headroom for HID report parsing, LED matrix driving, and capacitive touch scanning simultaneously. The 64 KB Flash accommodates USB HID descriptors plus custom firmware, while 16 KB SRAM handles HID buffers and scan state. The 48-QFN-EP (7x7 mm) footprint enables ultra-compact USB dongle designs with 29 GPIO sufficient for key matrix scanning and status LEDs. Compared to the MK10DX64VFT5 (no USB), this K20 variant saves PCB area and BOM cost.
Được đề xuất
Industrial Sensor Hubs
For industrial sensor hubs that read 4-20 mA loops, RTDs, or thermistors and report via CAN or UART, the MK20DX64VFT5 offers 50 MHz Cortex-M4 performance for sensor linearization and DSP filtering, plus an integrated 16-bit SAR ADC for direct precision measurement. The hardware CRC engine supports industrial protocols such as Modbus RTU, while the CAN bus peripheral enables direct connection to factory networks. The 1.71 V to 3.6 V supply range supports 3.3 V industrial rails with brownout detection. With 64 KB Flash and 16 KB SRAM, the part handles small RTOS kernels and complex sensor fusion. The -40C to +105C industrial temperature grade suits factory-floor deployment without thermal management.
Được đề xuất
Portable Medical Devices
The MK20DX64VFT5 fits portable medical point-of-care devices such as glucose meters, pulse oximeters, and handheld diagnostic tools. The Cortex-M4 with FPU runs sensor DSP algorithms at low power, while the 12-bit DAC supports analog stimulus generation. USB-OTG enables data upload to clinical PCs and battery charging via standard USB. The low-power modes (VLPR, VLPS, Stop) extend battery life to weeks, and the 64 KB Flash fits IEC 62304-class B firmware with safety margins. The 48-QFN-EP package suits small handheld enclosures. For designs requiring Class C safety integrity, pair with the K20 hardware CRC and watchdog for self-test routines.
Được đề xuất
Building Automation Controllers
For building automation such as HVAC controllers, smart thermostats, and lighting control panels, the MK20DX64VFT5 offers the right mix of peripherals. Multiple UARTs handle RS-485 Modbus, while I2C drives temperature/humidity sensors and SPI drives LCD displays. The 16-bit ADC reads analog inputs from setpoint potentiometers and 4-20 mA transducers. The hardware CRC engine ensures reliable Modbus RTU and BACnet MS/TP communications. The Cortex-M4 DSP extensions enable on-board HVAC control loop math. With 29 GPIO, the part can drive triac controls, relay outputs, and keypad inputs. Industrial -40C to +105C temperature rating suits unheated mechanical rooms.
Được đề xuất
Consumer Appliance Controllers
The MK20DX64VFT5 is a fit for consumer appliance controllers such as washing machines, refrigerators, coffee machines, and air purifiers. The 50 MHz Cortex-M4 core runs motor control loops (using FTM timers for PWM), user-interface graphics on segment LCD or TFT, and safety monitoring concurrently. USB-OTG enables firmware update via USB stick for field service. The 64 KB Flash fits appliance firmware with diagnostics and OTA bootloader. 16 KB SRAM supports UI buffers and motor-control state. The 48-QFN-EP package fits compact appliance PCBs. Compared to legacy 8-bit MCUs, the K20 dramatically reduces firmware complexity while maintaining cost parity.
Được đề xuất
IoT Edge Nodes with USB Connectivity
For IoT edge nodes that bridge wired sensors to USB-attached hosts, the MK20DX64VFT5 provides USB device connectivity, multiple serial interfaces for sensor aggregation, and low-power sleep modes for battery operation. The Cortex-M4 supports edge analytics such as simple anomaly detection before reporting. The hardware CRC engine secures USB packet integrity. The 1.71 V to 3.6 V supply supports direct Li-Ion battery operation with on-chip brownout reset. With the exposed pad providing low thermal resistance, the device operates at full 50 MHz in sealed enclosures. The 64 KB Flash fits TLS-lite client plus application logic, while 16 KB SRAM handles TLS buffers and edge compute state.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MK20DX64VFT5 — 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 | MK20DX128VFT5 | MK20DN64VFT5 | MK20DX64VLF5 | MKL15Z64VFT4 |
|---|---|---|---|---|---|
| Package | 48-QFN-EP (7x7 mm) | 48-QFN-EP (7x7 mm) - same | 48-QFN-EP (7x7 mm) - same | 48-LQFP (7x7 mm) - different package | 48-QFN-EP (7x7 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same brand | NXP Semiconductors - same brand | NXP Semiconductors - same brand | NXP Semiconductors - same brand |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M0+ (lower) |
| Maximum Clock Speed | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 48 MHz |
| Flash Memory | 64 KB | 128 KB | 64 KB | 64 KB | 64 KB |
| RAM Size | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB |
| USB OTG | Yes (USB 2.0 Full-Speed) | Yes | No (K20 non-USB variant) | Yes | Yes (USB-FS) |
| 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 |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
Bảo phân biệt quan trọng
- USB-OTG integrated with internal PHY (vsMK20DN64VFT5)
- Compact 48-QFN-EP (7x7 mm) with 29 GPIO (vsMK20DX64VMC7)
- Cortex-M4 with FPU and 50 MHz core (vsMKE04Z64VLD2)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor as close as possible to each VDD/VSS pair (typically pins 10, 26) and add a single 4.7 uF bulk capacitor on the main 3.3 V rail. The exposed thermal pad (EP) must be soldered to a ground copper pour with at least 16 thermal vias (0.3 mm drill, 0.5 mm pitch) to meet -40C to +105C industrial temperature specs at full 50 MHz operation. Keep high-speed USB DP/DM traces (pins 43, 44) at 90 ohms impedance and matched within 150 mil.
The MK20DX64VFT5 integrates a 3.3 V LDO (VOUT33, pin 45) for the USB PHY; this LDO can source ~50 mA but is intended only for USB transceiver power, not external loads. For designs with USB, add a 4.7 uF X5R ceramic on VOUT33 to stabilize the internal LDO. Brownout detection and low-voltage detect (LVD) are configurable via the PMC module - set LVD to interrupt below 2.7 V for safe shutdown on 3.3 V rails.
Do not leave the RESET_b pin (pin 46) floating; tie it to VDD through a 10 kohm pull-up with a 100 nF cap to ground for clean power-on-reset behavior. The EXTAL/XTAL pins (47, 48) require proper load capacitor selection per crystal manufacturer datasheet; incorrect capacitors cause frequency error or oscillator startup failure. The NMI pin functionality must be configured in the SIM module or it will not generate non-maskable interrupts as expected.
Thông tin tuân thủ
RoHS and REACH compliance per NXP product page environmental section. Industrial temperature grade -40C to +105C. Not AEC-Q100 qualified; for automotive designs choose Kinetis KEA or S32K families.
