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NXP Semiconductors MK20DX128VLF5
- Part No.:
- MK20DX128VLF5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MK20DX128VLF5.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,250
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Product details
Overview
MK20DX128VLF5 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extension, designed for embedded control applications requiring real-time signal processing and low-power operation. It features 128 KB on-chip flash, 16 KB RAM, 50 MHz maximum CPU frequency, -40 to 105°C operating temperature, and integrated USB OTG, ADC, timers, and communication peripherals. It is used in industrial sensor nodes and motor control edge devices.
For engineers reviewing the MK20DX128VLF5 datasheet, MK20DX128VLF5 pinout, MK20DX128VLF5 application, or MK20DX128VLF5 equivalent, key selection considerations include its FlexMemory capability (128 KB flash + 2 KB FlexRAM), 16-bit SAR ADC resolution, USB full-speed OTG support, and LQFP-48 package compatibility with industrial thermal and ESD requirements.
Technical Context
The MK20DX128VLF5 implements an ARM Cortex-M4 core with hardware DSP instructions and single-cycle MAC, enabling deterministic audio or motor control loop execution. Its clock system includes dual crystal oscillators (3–32 MHz and 32 kHz), MCG module supporting FEI/FBI/BLPE/FBE modes, and programmable clock dividers for precise peripheral timing.
It integrates FlexMemory architecture: 128 KB program flash plus dedicated 2 KB FlexRAM and optional 32 KB FlexNVM (not enabled on this variant), allowing EEPROM-like wear-leveling emulation. Analog subsystem comprises a 16-bit SAR ADC with configurable sample time and two analog comparators each with internal 6-bit DAC and programmable reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 with DSP extension, 50 MHz max - enables real-time filtering and control algorithms without external coprocessor |
| Flash Memory | 128 KB program flash - sufficient for complex firmware with bootloader, OTA update partition, and safety redundancy |
| RAM | 16 KB SRAM - supports real-time task stacks, buffers for USB/I2S, and intermediate DSP data storage |
| ADC | 16-bit SAR ADC with up to 1 MSPS - delivers high-resolution sensor acquisition for precision industrial monitoring |
| Operating Voltage | 1.71–3.6 V - compatible with single Li-ion, 3.3 V rail, or energy-harvesting power supplies |
| Temperature Range | -40 to 105°C - qualified for under-hood automotive, factory-floor PLC, and outdoor IoT deployments |
| USB Interface | Full-/low-speed On-The-Go controller with on-chip transceiver - eliminates external PHY, reduces BOM, supports device/host role switching |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Decoupling required per datasheet layout guidelines; separate VDDA/VSSA pins isolate analog domain |
| VDDA, VSSA | Analog power supply and ground | Must be filtered independently to maintain 16-bit ADC accuracy and comparator stability |
| EXTAL, XTAL | Main crystal oscillator input/output | Supports 3–32 MHz crystals; enables precise timing for USB, PWM, and communication baud rates |
| RTC_XTAL, RTC_EXTAL | 32 kHz real-time clock crystal | Enables battery-backed timekeeping and ultra-low-power wake-up from VLLS0 mode (0.367 µA) |
| USB_DP, USB_DM | USB differential data lines | On-chip transceiver eliminates external PHY; requires 27 Ω series resistors and proper PCB impedance control |
| ADC0_SEx | Analog input channel | 16-bit SAR ADC input with programmable gain and sample-and-hold; supports up to 16 channels via multiplexing |
| PTE0–PTE31, PTB0–PTB15, etc. | GPIO port pins | Configurable as digital I/O, UART, SPI, I2C, or timer capture/compare; support internal pull-up/pull-down (22–50 kΩ) |
Key Features
| Feature | Design Value |
|---|---|
| FlexMemory architecture | 128 KB flash + 2 KB FlexRAM enables EEPROM-emulation with guaranteed write endurance and atomic updates |
| Low-power modes | Seven power modes including VLLS0 (0.367 µA) and VLPR (867 µA) - optimized for battery-powered sensor nodes with periodic wake-up |
| Hardware CRC module | Accelerates checksum calculation for firmware integrity verification and communication packet validation without CPU overhead |
| Programmable delay block | Provides sub-microsecond timing resolution for synchronized PWM dead-time insertion and motor phase alignment |
| Unique 128-bit ID | Factory-programmed serial number enables secure device authentication and cryptographic key binding in firmware |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor drive in HVAC fan modules with field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time FOC computation engine, PWM generator, ADC sampling coordinator, and CAN/UART gateway. Use Value: 50 MHz Cortex-M4 with DSP executes FOC math in <1 µs; 16-bit ADC resolves current ripple at 10 kHz sampling; 8-channel PWM timer supports three-phase complementary outputs with programmable dead time. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with wireless telemetry. IC Role / Device Role / Timing Role: Sensor interface hub, low-power scheduler, USB/UART bridge, and firmware updater. Use Value: VLLS0 mode draws only 0.367 µA while retaining RAM and RTC; 16-bit ADC achieves ±0.1°C temperature resolution; USB OTG allows direct field firmware updates without external programmer. |
| Medical Infusion Pump | Automotive Body Controller |
Use Scenario: Safety-critical infusion pump with flow rate monitoring, alarm generation, and HMI interface. IC Role / Device Role / Timing Role: Safety monitor, analog front-end processor, watchdog supervisor, and display driver interface. Use Value: Hardware CRC validates flash integrity before boot; dual watchdog (external + software) ensures fail-safe shutdown; 16-bit ADC measures pressure transducer output with <0.05% FS linearity. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN bus interface. IC Role / Device Role / Timing Role: LIN slave node, GPIO expander, PWM dimmer, and EEPROM emulator for configuration storage. Use Value: FlexRAM provides 2 KB of wear-resistant nonvolatile storage for user preferences and calibration data; UART with LIN physical layer support enables direct bus connection without transceiver. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| K20DN128VLF5 | No FlexMemory; 128 KB flash only, no FlexRAM or FlexNVM | Lacks EEPROM-emulation capability; unsuitable for applications requiring frequent nonvolatile parameter writes | Select MK20DX128VLF5 when runtime reconfiguration or data logging with wear leveling is required |
| MKE15Z128VLH7 | ARM Cortex-M0+, 48 MHz, 128 KB flash, 16 KB RAM, but no USB OTG or FlexMemory | Lower cost and power, but lacks DSP acceleration, USB host/device capability, and FlexRAM for robust data logging | Choose MK20DX128VLF5 for USB connectivity, real-time signal processing, or high-reliability nonvolatile storage needs |
Compared with K20DN128VLF5 and MKE15Z128VLH7, the MK20DX128VLF5 uniquely combines DSP-accelerated computation, on-chip USB transceiver, and FlexRAM-based EEPROM emulation-making it optimal for applications demanding both real-time control fidelity and robust field-updatable data storage.
Availability
MK20DX128VLF5 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, medical infusion pumps, and automotive body controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MK20DX128VLF5 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 MK20DX128VLF5 belongs to the Kinetis K20 family, engineered for cost-sensitive, performance-constrained embedded systems needing real-time responsiveness, mixed-signal integration, and low-power flexibility in harsh environments.
FAQ
What is the maximum operating frequency of the MK20DX128VLF5?
The MK20DX128VLF5 operates at a maximum CPU frequency of 50 MHz. This is achieved using the internal MCG clock generator in FEI or FBE mode with an external crystal, and is validated across the full -40°C to 105°C ambient temperature range. The MK20DX128VLF5 maintains timing compliance for all peripherals-including USB, ADC, and PWM-at this frequency when supplied within the 1.71–3.6 V range.
Does the MK20DX128VLF5 include USB functionality, and what type is supported?
Yes, the MK20DX128VLF5 integrates a full-/low-speed USB On-The-Go (OTG) controller with an on-chip transceiver. It supports both device and host roles without requiring an external PHY. The MK20DX128VLF5 complies with USB 2.0 specifications and includes dedicated USB_DP/USB_DM pins, internal voltage regulators, and DCD (Device Connection Detection) circuitry for automatic role negotiation.
What memory resources are available on the MK20DX128VLF5?
The MK20DX128VLF5 provides 128 KB of program flash memory, 16 KB of general-purpose SRAM, and 2 KB of FlexRAM. Unlike the DN-series variants, the DX-series includes FlexMemory architecture, enabling the 2 KB FlexRAM to serve as emulated EEPROM with hardware-assisted wear leveling. It does not include FlexNVM on this specific part number.
What is the ADC resolution and performance of the MK20DX128VLF5?
The MK20DX128VLF5 features a 16-bit successive approximation register (SAR) ADC with up to 1 million samples per second (1 MSPS) conversion rate. It supports up to 16 input channels, programmable sample time, hardware averaging, and configurable reference sources (internal or external). The MK20DX128VLF5 ADC achieves ±1 LSB integral nonlinearity and supports differential input modes for noise rejection in industrial sensing.
Is the MK20DX128VLF5 qualified for automotive or industrial temperature ranges?
Yes, the MK20DX128VLF5 is rated for operation from -40°C to +105°C ambient temperature, meeting industrial and extended-temperature automotive requirements (e.g., AEC-Q100 Class 2 qualification path). Its electrical specifications-including flash programming voltage, ADC accuracy, and USB timing-are guaranteed across this full range, and it includes thermal protection features such as temperature-dependent brown-out detection.
MK20DX128VLF5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- Kinetis K20
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- 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:
- 29
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 11x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK20DX128VLF5 FAQ
1.How can I place an order for MK20DX128VLF5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK20DX128VLF5 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 MK20DX128VLF5 reliable?
The price and inventory of MK20DX128VLF5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK20DX128VLF5 is usually 5 days.
3.What payment methods are accepted for MK20DX128VLF5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK20DX128VLF5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK20DX128VLF5?
MK20DX128VLF5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK20DX128VLF5 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 MK20DX128VLF5?
For technical support, including MK20DX128VLF5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK20DX128VLF5 requirements.
6.How does Aetrix verify that MK20DX128VLF5 is sourced from the original manufacturer or authorized distributors?
All MK20DX128VLF5 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 MK20DX128VLF5 meets industry standards.
7.What is the process for return or replacement of MK20DX128VLF5?
All MK20DX128VLF5 units undergo pre-shipment inspection (PSI). If there is an issue with MK20DX128VLF5, 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 MK20DX128VLF5 part is unused and in its original packaging.
Return procedure for MK20DX128VLF5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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