MK20DN32VFT5 - Kinetis K20 50MHz Cortex-M4 MCU | NXP
MPN: MK20DN32VFT5 ✓ فعالMK20DN32VFT5 جائزہ
A microcontroller (MCU) is a single-chip computer that combines a processor core, program memory (flash), working memory (SRAM), and a rich set of on-chip peripherals such as timers, ADCs, communication controllers, and GPIO. Within the broader semiconductor taxonomy, the MK20DN32VFT5 sits at the intersection of microcontroller -> 32-bit MCU -> ARM Cortex-M class -> Kinetis K-series performance line. It replaces the older 8/16-bit MCU generations in cost-sensitive, USB-connected embedded designs, exposing a deterministic Cortex-M4 instruction set and Thumb-2 DSP extensions.
Key features include up to 29 general-purpose I/O pins, integrated DMA, I2S, LVD, POR, PWM, and WDT peripherals, plus hardware CRC and a 16-bit ADC. The Full-Speed USB 2.0 controller with on-chip transceiver and OTG support removes the need for an external PHY, allowing direct USB device/host/OTG connectivity.
The Cortex-M4 core delivers 1.25 DMIPS/MHz with single-cycle MAC and a single-precision FPU, enabling efficient DSP-style signal processing on-chip. The Kinetis K20 platform also integrates a flexible low-power modes architecture, a 32KB flash memory array with flash access control, and a 4-channel DMA engine that offloads data movement from the CPU.
Typical applications include USB HID peripherals (keyboards, mice, gamepads, custom HID), low-cost USB audio class devices, industrial sensor hubs, point-of-sale terminals, and small home appliances that need USB connectivity with deterministic real-time response.
A key design consideration is that the Full-Speed USB transceiver requires careful PCB layout - route the D+/D- pair as a 90-ohm differential and decouple VBUS with a 1uF/0.1uF pair. Engineers should also budget flash endurance (typically 100K cycles) for frequent firmware updates over USB.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design considerations specifically for the 48-QFN-EP MK20DN32VFT5, information not consolidated on the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل MK20DN32VFT5 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں MK20DN32VFT5 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Core Size, SRAM, Series, USB.
MK20DX32VFT5
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →MK20DN64VFT5
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MK10DN32VFT5
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MK20DN128VFT5
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MK22FN128VMP10
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →MK20DN32VFT5 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-Bit |
| Maximum CPU Speed | 50 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 8 KB SRAM |
| Supply Voltage Range | 1.71 V to 3.6 V |
| Number of I/O Pins | 29 |
| پیکیج | 48-QFN-EP, 7 x 7 mm |
| Connectivity | I2C, IrDA, SPI, UART/USART, USB, USB OTG |
| Peripherals | DMA, I2S, LVD, POR, PWM, WDT |
| آپریٹنگ درجہ حرارت رینج | -40 C to +105 C (Industrial) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant |
| Lifecycle Stage | ACTIVE |
MK20DN32VFT5 پن کنفیگریشن
| پن 1 | PTA0 — General-purpose I/O / TCLK |
| پن 2 | PTA1 — General-purpose I/O |
| پن 3 | PTA2 — General-purpose I/O |
| پن 4 | PTA3 — General-purpose I/O |
| پن 5 | PTA4 — General-purpose I/O |
| پن 6 | PTA5 — General-purpose I/O |
| پن 7 | PTA6 — General-purpose I/O |
| پن 8 | PTA7 — General-purpose I/O |
| پن 9 | PTB0 — GPIO / ADC0 channel |
| پن 10 | PTB1 — GPIO / ADC0 channel |
| پن 11 | PTB2 — GPIO / ADC0 channel |
| پن 12 | PTB3 — GPIO / ADC0 channel |
| پن 13 | VSS — Ground |
| پن 14 | VDD — Supply voltage 1.71-3.6 V |
| پن 15 | PTB4 — GPIO |
| پن 16 | PTB5 — GPIO |
| پن 17 | PTC0 — GPIO / SPI |
| پن 18 | PTC1 — GPIO / SPI |
| پن 19 | PTC2 — GPIO / SPI |
| پن 20 | PTC3 — GPIO / SPI |
| پن 21 | PTC4 — GPIO / SPI |
| پن 22 | PTC5 — GPIO / SPI |
| پن 23 | PTC6 — GPIO / UART |
| پن 24 | PTC7 — GPIO / UART |
| پن 25 | PTD0 — GPIO / I2C SDA |
| پن 26 | PTD1 — GPIO / I2C SCL |
| پن 27 | PTD2 — GPIO |
| پن 28 | PTD3 — GPIO |
| پن 29 | PTD4 — GPIO |
| پن 30 | PTD5 — GPIO |
| پن 31 | PTD6 — GPIO / USB VBUS detect |
| پن 32 | PTD7 — GPIO |
| پن 33 | USB_DP — USB Full-Speed D+ |
| پن 34 | USB_DM — USB Full-Speed D- |
| پن 35 | VSS — Ground |
| پن 36 | VDD — Supply voltage 1.71-3.6 V |
| پن 37 | PTE0 — GPIO / USB VBUS |
| پن 38 | PTE1 — GPIO |
| پن 39 | PTE2 — GPIO |
| پن 40 | PTE3 — GPIO |
| پن 41 | PTE4 — GPIO |
| پن 42 | PTE5 — GPIO |
| پن 43 | PTE6 — GPIO |
| پن 44 | PTE7 — GPIO |
| پن 45 | RST — Reset (active low) |
| پن 46 | TMS — JTAG / SWD test mode select |
| پن 47 | TCK — JTAG / SWD clock |
| پن 48 | NC — Not connected (per datasheet) |
عام استعمالات
MK20DN32VFT5 کے لیے موزوں ہے 6 ایپلیکیشنs: USB HID Peripheral (Keyboard / Mouse / Gamepad), USB Audio Class Device, Industrial Sensor Hub, Point-of-Sale Terminal Accessory, Smart Home Sensor Node, USB-Connected Wearable / Fitness Tracker.
USB HID Peripheral (Keyboard / Mouse / Gamepad)
The MK20DN32VFT5's integrated Full-Speed USB 2.0 controller with on-chip transceiver and OTG support makes it a single-chip solution for USB HID class devices such as keyboards, mice, and game controllers. It runs the Cortex-M4 at 50 MHz, sufficient for HID report polling rates up to 1000 Hz, while 32 KB flash holds a complete HID descriptor set plus custom firmware. The 8 KB SRAM is ample for HID ring buffers and small macro tables. Connected via a 90-ohm differential USB D+/D- pair routed directly to the package pins, no external USB PHY or regulator is required, minimizing BOM cost. The Cortex-M4 DSP extensions also enable on-chip button-debouncing and gesture-recognition algorithms.
تجویز کردہ
USB Audio Class Device
The MK20DN32VFT5's Full-Speed USB controller supports isochronous endpoints, and its Cortex-M4 DSP extensions with single-cycle MAC enable inline audio-codec processing for low-channel-count USB audio class 1.0 devices. The 50 MHz core and 8 KB SRAM are adequate for 48 kHz/16-bit stereo USB audio when paired with an external I2S codec such as the SGTL5000. The 48-QFN-EP package keeps the design under 7 x 7 mm, making the part attractive for compact USB headphones, USB microphones, and conferencing speakers. The 1.71V to 3.6V supply range also permits single-cell Li-ion battery-powered operation with active USB suspend detection.
تجویز کردہ
Industrial Sensor Hub
The MK20DN32VFT5 provides the right balance of Cortex-M4 compute and USB connectivity for industrial sensor hubs aggregating Modbus, I2C, or SPI sensor streams and exposing them via a USB-CDC virtual COM port. Its 16-bit ADC channels (subject to datasheet verification) acquire analog sensor data while DMA offloads the movement to SRAM. The 32 KB flash stores the Modbus parsing tables and a USB-CDC stack, and the 1.71V to 3.6V supply simplifies 3.3V industrial rail powering. Its wide -40 C to +105 C operating range covers factory-floor deployment, and USB OTG allows the hub to act as either a USB device or a USB host for thumb-drive data logging.
تجویز کردہ
Point-of-Sale Terminal Accessory
The MK20DN32VFT5's USB OTG capability allows a POS accessory such as a barcode scanner, magnetic-stripe reader, or receipt printer to act as either a USB device (slaved to a POS tablet) or a USB host (controlling a peripheral). Its Cortex-M4 DSP extensions can accelerate barcode-decode algorithms, while 8 KB SRAM holds USB HID/CDC descriptors. The integrated DMA engine moves sensor data between peripherals and memory without CPU intervention, preserving response time for the user-facing transaction. The 48-QFN-EP package permits a compact accessory PCBA under 10 mm x 10 mm.
تجویز کردہ
Smart Home Sensor Node
The MK20DN32VFT5 fits smart-home sensor nodes that need USB for setup/configuration plus low-power operation for battery lifetime. Its integrated DMA and Cortex-M4 efficiency keep wake-mode current low, and the USB OTG port doubles as a charging and configuration interface during service calls. The 32 KB flash comfortably hosts Zigbee / Thread controller-bridge firmware (where supported by middleware) or BLE-via-USB dongle logic. The part's 1.71V to 3.6V supply supports operation directly from a single CR2032 coin cell or a 3.3V regulated rail, simplifying the BOM in cost-sensitive consumer sensor designs.
تجویز کردہ
USB-Connected Wearable / Fitness Tracker
The MK20DN32VFT5 is a strong fit for USB-charged wearables and fitness tracker dongles where Cortex-M4 DSP enables on-chip heart-rate signal processing. The Full-Speed USB controller handles data offload to the host, and 32 KB flash accommodates the DSP algorithm plus USB stack. The 48-QFN-EP 7 x 7 mm package keeps the wearable main board small, while the part's DMA engine moves sensor samples to SRAM buffers without burdening the CPU. The 1.71V to 3.6V range supports direct single-cell Li-ion battery operation, and the integrated 16-bit ADC (per K20 datasheet) interfaces directly with PPG / ECG analog front ends.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا MK20DN32VFT5 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | MK20DX32VFT5 | MK20DN64VFT5 | MK10DN32VFT5 | MK20DN128VFT5 | MK22FN128VMP10 |
|---|---|---|---|---|---|---|
| Package | 48-QFN-EP (7x7) | 48-QFN-EP (7x7) - same | 48-QFN-EP (7x7) - same | 48-QFN-EP (7x7) - same | 48-QFN-EP (7x7) - same | 48-QFN-EP (7x7) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M0+ | ARM Cortex-M4 | ARM Cortex-M4 |
| Maximum Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 120 MHz |
| Flash Memory | 32 KB | 32 KB | 64 KB (+100%) | 32 KB | 128 KB (+300%) | 128 KB (+300%) |
| SRAM | 8 KB | 8 KB | 16 KB (+100%) | 8 KB | 16 KB (+100%) | 24 KB (+200%) |
| USB Support | Full-Speed USB OTG | Full-Speed USB OTG | Full-Speed USB OTG | Full-Speed USB OTG | Full-Speed USB OTG | Full-Speed USB OTG |
| 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 |
| GPIO Count | 29 | 29 | 29 | 29 | 29 | 64 (higher pin count package variant) |
اہم امتیازی خصوصیات
- Cortex-M4 at 50 MHz with on-chip USB OTG in 48-QFN-EP (بمقابلہMK10DN32VFT5)
- 32 KB flash keeps the cost-structure low for USB HID (بمقابلہMK20DX256VLF5)
- Same 48-QFN-EP footprint as higher-density MK20 variants (بمقابلہMK20DN64VFT5)
- USB Full-Speed with on-chip PHY (no external transceiver) (بمقابلہMK53DX256ZCLQ10)
ڈیزائن نوٹس
Route the USB D+ and D- pins (pins 33 and 34) as a 90-ohm differential pair with matched length and an uninterrupted reference ground plane. Place the 1uF plus 100nF VBUS decoupling pair within 5 mm of the USB connector to suppress hot-plug transients. Per NXP K20 reference design, the exposed thermal pad must be soldered to a 25 mm x 25 mm (minimum) ground copper pour to meet the thermal resistance spec and provide an RF return path.
The MK20DN32VFT5 requires both a 1uF bulk and a 100nF high-frequency decoupling capacitor on each VDD pin pair (pins 13-14 and pins 35-36). Place decoupling capacitors within 2 mm of the IC. The integrated voltage regulator drops out gracefully at low input voltages, but a 4.7uF tantalum + 100nF ceramic combination on the regulator output is recommended when powering from a noisy switching supply. Estimated: a USB-only design drawing 50 mA peaks draws roughly 25 mA average; battery-powered designs should budget 5 mA typical active current at 50 MHz.
Do not connect the JTAG/SWD pins (TMS, TCK on pins 46-47) to the same PCB layer as the USB differential pair - crosstalk can corrupt debug sessions. When migrating firmware from MK10 (Cortex-M0+) to MK20 (Cortex-M4), beware that DSP extensions and certain bit-band addresses change vector placement; a full linker-script rewrite may be required. Also, the maximum flash erase endurance is 100K cycles - implement wear-leveling for production devices that expect frequent firmware updates over USB.
Keep the 32.768 kHz external watch-crystal traces short and surrounded by a guarded ground pour. The Cortex-M4 system tick timer and USB SOF time base depend on a clean 32.768 kHz reference; a noisy crystal footprint can cause USB jitter above the Full-Speed specification of +/-0.25 percent. Place an in-line ferrite bead on the analog-domain supply if your design uses the on-chip ADC.
تعمیل کی معلومات
RoHS compliant per NXP product page. AEC-Q100 not applicable - this is a commercial/industrial MCU. Halogen-free status not explicitly stated in provided data.
