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NXP Semiconductors MK20DN32VFM5
- Part No.:
- MK20DN32VFM5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MK20DN32VFM5.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,200
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Product details
Overview
MK20DN32VFM5 from NXP (formerly Freescale) is a 32-bit ARM Cortex-M4 core microcontroller with DSP instructions, designed for embedded control in resource-constrained industrial and automotive applications. It operates at up to 50 MHz, integrates 32 KB program flash, 16 KB RAM, and supports -40°C to +105°C ambient operation in a 32-pin QFN package. Key interfaces include USB On-The-Go, two UARTs, SPI, I²C, and a 16-bit SAR ADC.
For engineers reviewing the MK20DN32VFM5 datasheet, MK20DN32VFM5 pinout, MK20DN32VFM5 application, or MK20DN32VFM5 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases, and confirmed alternative parts - all grounded in the K20P32M50SF0 datasheet Rev. 4 (May 2012) and official NXP product documentation.
Technical Context
The MK20DN32VFM5 implements an ARM Cortex-M4 core with hardware DSP extensions and no FPU, operating at up to 50 MHz with 1.25 Dhrystone MIPS/MHz performance. Its clock system includes dual crystal oscillators (3–32 MHz and 32 kHz), a multi-purpose clock generator (MCG), and configurable low-power modes including VLLS0–VLLS3 and VLPR.
It integrates FlexMemory-capable peripherals only on X-variant devices (e.g., MK20DX32VFM5); the DN variant has program flash only (no FlexNVM/FlexRAM). Analog subsystem includes a 16-bit SAR ADC with configurable resolution and sampling rate, two analog comparators with integrated 6-bit DACs, and hardware CRC acceleration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4 with DSP, no FPU - enables deterministic real-time signal processing without floating-point overhead |
| Max Clock Speed | 50 MHz - supports time-critical control loops and USB full-speed communication |
| Flash Memory | 32 KB program flash only - sufficient for compact firmware with bootloader and safety monitoring |
| RAM | 16 KB SRAM - accommodates stack, heap, and real-time data buffers for sensor fusion or motor control |
| Operating Voltage | 1.71 V to 3.6 V - compatible with single-cell Li-ion, 3.3 V industrial rails, and battery-backed systems |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive and industrial edge controller environments |
| ADC Resolution | 16-bit SAR - provides high dynamic range for precision current sensing or temperature measurement |
| USB Interface | Full-/low-speed On-The-Go with on-chip transceiver - enables host/peripheral role switching without external PHY |
Pinout & Package
Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch), exposed thermal pad (FM suffix per K20P32M50SF0 Section 2.3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Separate digital/analog supplies enable noise isolation; VDDA must track VDD within ±0.1 V for ADC accuracy |
| EXTAL0 / XTAL0 | Main crystal oscillator input/output | Supports 3–32 MHz crystals - required for precise USB timing and high-accuracy system clocks |
| EXTAL32 / XTAL32 | 32 kHz RTC crystal terminals | Enables low-power real-time clock operation with <2 µA standby current when VBAT supplied |
| USB_DP / USB_DM | USB differential data lines | Integrated transceiver eliminates external PHY; requires 1.5 kΩ pull-up on DP for full-speed device enumeration |
| PTA0–PTA31 | GPIO port pins with multiplexed functions | Each pin supports UART, SPI, I²C, ADC, PWM, or comparator inputs - configurable via SIM_SOPT2 and PORTx_PCRn registers |
Key Features
| Feature | Design Value |
|---|---|
| Low-power stop modes (VLLS0–VLLS3) | VLLS0 draws as low as 0.176 µA @ –40°C to 25°C with POR disabled - ideal for battery-powered wake-on-event systems |
| Hardware CRC module | Accelerates checksum computation for firmware integrity verification and secure boot without CPU load |
| 128-bit unique chip ID | Provides immutable device identity for secure provisioning, licensing, and anti-counterfeiting in production |
| Programmable delay block (PDB) | Enables synchronized ADC sampling and PWM edge triggering for motor phase current measurement |
| Real-time clock (RTC) with VBAT backup | Maintains timekeeping during main power loss using coin-cell battery; retains registers down to 1.71 V VBAT |
Applications
| Industrial Motor Control | Automotive Body Controller |
|---|---|
Use Scenario: Closed-loop BLDC motor drive in HVAC blowers or pump systems requiring precise current sensing and commutation timing. IC Role / Device Role / Timing Role: Central controller executing FOC algorithms, managing ADC-triggered PWM updates, and communicating via UART to master ECU. Use Value: 16-bit ADC resolution and PDB synchronization reduce current measurement error to <0.5% FS; VLLS3 mode enables <2 µA sleep current between duty cycles. | Use Scenario: Door module managing window lift, mirror fold, and interior lighting with CAN coordination and local diagnostics. IC Role / Device Role / Timing Role: Local node processor handling switch debouncing, PWM dimming, and fault logging; communicates over UART to gateway MCU. Use Value: -40°C to +105°C rating ensures reliability in door cavities; hardware CRC validates firmware updates over serial interface. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Battery-operated infusion pump requiring precise flow rate control, tamper detection, and low-power alarm supervision. IC Role / Device Role / Timing Role: Safety-critical controller running motor drivers, reading pressure/flow sensors via ADC, and managing USB for calibration and data export. Use Value: Dual crystal support enables accurate RTC for dose scheduling and USB timing compliance; VLLS0 mode extends battery life to >1 year in standby. | Use Scenario: DIN-rail mounted meter performing voltage/current sampling, tariff calculation, and PLC/GPRS communication. IC Role / Device Role / Timing Role: Data acquisition engine capturing 16-bit ADC samples at 10 kSPS, timestamping events via RTC, and buffering data for transmission. Use Value: 16 KB RAM accommodates 1-second waveform buffers; hardware CRC ensures integrity of stored energy logs across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK20DX32VFM5 | Same core, package, and speed; adds 32 KB FlexNVM and 2 KB FlexRAM - enables EEPROM emulation and data logging without external memory | Required where field-upgradable parameter storage or wear-leveling data buffers are needed | Select MK20DX32VFM5 if nonvolatile parameter retention or OTA update rollback capability is mandatory |
| KL26Z32VLH4 | ARM Cortex-M0+ core, 48 MHz max, 32 KB flash, 8 KB RAM, same 64-LQFP package footprint but different pinout and peripheral set | Lacks USB OTG, 16-bit ADC, and PDB; targets cost-sensitive, lower-compute applications | Choose KL26Z32VLH4 only when USB and high-resolution analog features are unnecessary and BOM cost is primary constraint |
Compared with MK20DN32VFM5, MK20DX32VFM5 adds FlexMemory for robust data logging but shares identical pinout and software compatibility; KL26Z32VLH4 reduces compute capability and analog precision to lower cost, requiring PCB and firmware redesign.
Availability
MK20DN32VFM5 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MK20DN32VFM5 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in ARM-based microcontrollers and edge processing.
The MK20DN32VFM5 belongs to the Kinetis K20 family - engineered for real-time control in harsh environments, emphasizing low-power operation, analog integration, and functional safety readiness for industrial and automotive subsystems.
FAQ
What is the maximum operating frequency of the MK20DN32VFM5?
The MK20DN32VFM5 operates at a maximum system and core clock frequency of 50 MHz, as specified in the K20P32M50SF0 datasheet Rev. 4. This frequency is achievable with the MCG configured in FEI or PBE mode using the internal reference or external crystal. The USB full-speed interface requires the system clock to be ≥20 MHz and ≤50 MHz, and the MK20DN32VFM5 meets this requirement at its rated 50 MHz operation.
Does the MK20DN32VFM5 include FlexMemory (FlexNVM/FlexRAM)?
No, the MK20DN32VFM5 does not include FlexMemory. Per the K20P32M50SF0 datasheet and part number decoding ('D' = Cortex-M4 w/DSP, 'N' = program flash only), the DN variant contains 32 KB of program flash and 16 KB of RAM but no FlexNVM or FlexRAM. FlexMemory is available only on DX variants such as MK20DX32VFM5. The MK20DN32VFM5 supports standard flash programming and SRAM usage only.
What are the supported low-power modes for the MK20DN32VFM5?
The MK20DN32VFM5 supports multiple low-power modes including VLPR (Very-Low-Power Run), VLPW (Very-Low-Power Wait), STOP, VLPS (Very-Low-Power Stop), LLS (Low-Leakage Stop), and VLLS0–VLLS3 (Very-Low-Leakage Stop). Current consumption in VLLS0 mode is as low as 0.176 µA at –40°C to 25°C with POR disabled, making MK20DN32VFM5 suitable for battery-backed wake-on-event applications requiring multi-year shelf life.
Can the MK20DN32VFM5 operate with a 32 kHz crystal for RTC functionality?
Yes, the MK20DN32VFM5 includes dedicated EXTAL32 and XTAL32 pins for connecting a 32.768 kHz crystal to drive the real-time clock (RTC) module. The RTC remains operational during VLLS0–VLLS3 modes when powered by VBAT, and the 32 kHz oscillator is specified to function across the full –40°C to +105°C temperature range. This allows MK20DN32VFM5 to maintain accurate timekeeping in battery-backed applications without main supply.
What USB capabilities does the MK20DN32VFM5 provide?
The MK20DN32VFM5 integrates a full-/low-speed USB On-The-Go controller with an on-chip transceiver, supporting both host and device roles without external PHY components. It complies with USB 2.0 specification and supports control, interrupt, bulk, and isochronous transfer types. The MK20DN32VFM5 requires only a 1.5 kΩ pull-up resistor on USB_DP for device enumeration and supports suspend/resume signaling for power-aware designs.
MK20DN32VFM5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- Kinetis K20
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART, USB, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 20
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 6x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK20DN32VFM5 FAQ
1.How can I place an order for MK20DN32VFM5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK20DN32VFM5 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 MK20DN32VFM5 reliable?
The price and inventory of MK20DN32VFM5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK20DN32VFM5 is usually 5 days.
3.What payment methods are accepted for MK20DN32VFM5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK20DN32VFM5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK20DN32VFM5?
MK20DN32VFM5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK20DN32VFM5 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 MK20DN32VFM5?
For technical support, including MK20DN32VFM5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK20DN32VFM5 requirements.
6.How does Aetrix verify that MK20DN32VFM5 is sourced from the original manufacturer or authorized distributors?
All MK20DN32VFM5 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 MK20DN32VFM5 meets industry standards.
7.What is the process for return or replacement of MK20DN32VFM5?
All MK20DN32VFM5 units undergo pre-shipment inspection (PSI). If there is an issue with MK20DN32VFM5, 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 MK20DN32VFM5 part is unused and in its original packaging.
Return procedure for MK20DN32VFM5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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