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NXP Semiconductors MK20DX128VLH7
- Part No.:
- MK20DX128VLH7
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MK20DX128VLH7.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:805
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Product details
Overview
MK20DX128VLH7 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extension, 128 KB flash, 16 KB SRAM, and 72 MHz max CPU frequency. It integrates dual 16-bit SAR ADCs with PGA, 12-bit DAC, USB OTG, CAN, multiple UART/I²C/SPI, RTC, and low-power timers. Used in industrial sensor nodes requiring mixed-signal control and USB-CAN bridging.
For engineers reviewing the MK20DX128VLH7 datasheet, MK20DX128VLH7 pinout, MK20DX128VLH7 application, or MK20DX128VLH7 equivalent, key selection factors include its -40°C to 105°C extended temperature grade, 64-pin LQFP package, FlexMemory support, and integrated TSI for touch HMI in space-constrained embedded systems.
Technical Context
The MK20DX128VLH7 implements the ARMv7E-M architecture with hardware divide, single-cycle MAC, and SIMD instructions. Its MCG clock system supports multiple modes including FEE (72 MHz), FEI (internal reference), and PBE (PLL bypass), enabling dynamic power/performance scaling across run, VLPR, STOP, and VLLS modes.
Peripherals are organized into crossbar-switched AIPS buses with configurable priority arbitration. The FlexCAN module complies with ISO 11898-1:2003 and supports programmable bit timing, loopback self-test, and FIFO-based message buffering - critical for deterministic real-time automotive and industrial networking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 with DSP extension, no FPU - enables efficient motor control math and audio preprocessing without floating-point overhead. |
| Flash / RAM | 128 KB program flash + FlexMemory (configurable as EEPROM or additional RAM); 16 KB SRAM - supports firmware updates with rollback and data logging in resource-constrained devices. |
| Max Frequency | 72 MHz core clock - delivers 100+ DMIPS at 3.3 V, sufficient for real-time PID loops with 10 kHz sampling on dual ADCs. |
| ADC | Dual 16-bit SAR ADCs, each with integrated PGA (x1–x64) - allows direct interface to mV-range sensors (e.g., strain gauges, thermopiles) without external signal conditioning. |
| USB & CAN | USB 2.0 Full/Low-Speed OTG with on-chip transceiver + one FlexCAN 2.0B controller - enables host/peripheral USB connectivity and robust fieldbus communication in a single chip. |
| Temp Range | -40°C to +105°C ambient - qualified for under-hood automotive, industrial PLC I/O modules, and outdoor metering applications. |
| Supply Voltage | 1.71 V to 3.6 V - compatible with single-cell Li-ion, 3.3 V logic rails, and energy-harvesting power supplies. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Core power/ground | Dual 1.71–3.6 V supply domains with ≤100 mV differential tolerance - requires separate decoupling for digital/analog sections to maintain ADC/DAC accuracy. |
| PTA0–PTA31, PTB0–PTB17, etc. | GPIO multiplexed signals | Up to 56 configurable GPIOs with programmable slew rate, drive strength, pull-up/down, and glitch filtering - supports both high-speed digital interfaces and noise-immune sensor inputs. |
| ADC0_SE0–ADC0_SE15, ADC1_SE0–ADC1_SE15 | Analog input channels | 32 total single-ended ADC inputs across two converters; shared pins with GPIO - enables flexible routing of analog sources without PCB layer rework. |
| USB_DP/USB_DM | USB differential pair | On-die transceiver eliminates external PHY; requires 27 Ω series resistors and 1.5 kΩ pull-up on DP for full-speed enumeration - reduces BOM count and EMI risk. |
| CAN_TX/CAN_RX | FlexCAN bus interface | CMOS-level signals compliant with ISO 11898-2 physical layer when paired with external transceiver - supports hot-plug detection and bus-off recovery in safety-critical networks. |
| XTAL/EXTAL | Primary crystal oscillator terminals | Supports 3–32 MHz crystals; internal load caps configurable per crystal spec - eliminates need for external capacitors in many designs, simplifying layout. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Power Modes | Seven power modes (RUN, VLPR, STOP, VLLS1–3) with sub-μA VLLS3 current (1.9 μA @ 3.0 V) - extends battery life in wireless sensor endpoints beyond 5 years on coin cell. |
| Hardware CRC Module | Configurable 16/32-bit CRC engine with programmable polynomial - accelerates firmware integrity checks and secure boot verification in <10 μs per 1 KB block. |
| TSI Touch Interface | Capacitive touch sensing on up to 16 electrodes with automatic calibration and noise rejection - enables robust slider, wheel, and button UIs without dedicated touch controller IC. |
| Programmable Gain Amplifier | Integrated x1/x2/x4/x8/x16/x32/x64 PGA per ADC channel - replaces discrete op-amp gain stages, reducing component count and board area by >30% in precision measurement designs. |
| Unique Chip ID | 128-bit factory-programmed serial number - provides cryptographic root-of-trust for device authentication and secure firmware updates in IoT deployments. |
Applications
| Industrial Sensor Hub | Automotive Diagnostic Tool |
|---|---|
Use Scenario: Compact gateway aggregating temperature, pressure, and vibration data from analog sensors in factory machinery. IC Role / Device Role / Timing Role: Central MCU executing sensor fusion algorithms, managing SD card logging, and communicating via USB-CAN bridge to SCADA systems. Use Value: Dual ADCs with PGA eliminate external signal conditioners; 72 MHz core handles real-time FFT analysis; VLLS3 mode enables wake-on-event operation with <2 μA standby. | Use Scenario: Handheld OBD-II scanner supporting UDS diagnostics and live CAN bus monitoring for Tier-1 suppliers. IC Role / Device Role / Timing Role: USB host interfacing with PC software while simultaneously acting as CAN controller with precise bit timing control and error frame capture. Use Value: Integrated USB OTG and FlexCAN reduce external IC count; 105°C rating ensures reliability in vehicle cabin environments; hardware CRC validates flash updates over noisy CAN. |
| Smart Energy Meter | Medical Patient Monitor |
Use Scenario: DIN-rail mounted electricity meter performing Class 0.5S metrology with harmonic analysis and tamper detection. IC Role / Device Role / Timing Role: High-accuracy ADC acquisition engine synchronized to line cycle, coupled with RTC for time-of-use billing and secure crypto acceleration. Use Value: 16-bit ADC resolution + PGA enables direct shunt-based current sensing; 12-bit DAC calibrates reference voltage; unique ID binds firmware to hardware for anti-cloning. | Use Scenario: Portable vital signs monitor acquiring ECG, SpO₂, and respiration waveforms with clinical-grade fidelity. IC Role / Device Role / Timing Role: Mixed-signal processor handling analog front-end digitization, real-time QRS detection, and Bluetooth LE packetization via UART-to-BLE bridge. Use Value: Low-noise ADC architecture achieves >70 dB SNR; TSI supports touch-based UI with glove-mode; -40°C to 105°C range covers sterilization cycles and cold-chain transport. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK20DX256VLH7 | 256 KB flash, same 64-pin LQFP package, identical peripherals and clock architecture - differs only in flash size and FlexMemory allocation. | Required where firmware image exceeds 128 KB or EEPROM emulation demand exceeds 4 KB. | Select when future-proofing for larger feature sets or field-upgradable security stacks without changing PCB layout. |
| K22F512VLH12 | ARM Cortex-M4F (with FPU), 512 KB flash, 120 MHz max frequency, same Kinetis K2x peripheral set - adds floating-point unit and higher clock headroom. | Suitable for advanced motor control with complex vector math or audio processing requiring IEEE-754 compliance. | Choose when algorithmic complexity demands hardware FPU or when design lifetime requires >10-year longevity with extended roadmap support. |
Compared with MK20DX128VLH7, MK20DX256VLH7 offers scalable code storage within identical thermal and pinout constraints, while K22F512VLH12 introduces floating-point capability and higher performance - making the former ideal for cost-sensitive upgrades and the latter for computationally intensive next-generation designs.
Availability
MK20DX128VLH7 is available at Aetrix Electronics and suitable for industrial automation, automotive diagnostics, and smart metering applications requiring stable component supply, long-term lifecycle assurance, and extended temperature operation.
Supply support for MK20DX128VLH7 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 roots in Freescale's embedded processing heritage.
The MK20DX128VLH7 belongs to the Kinetis K20 family - designed specifically for cost-sensitive, low-power industrial and consumer applications demanding rich analog integration, USB/CAN connectivity, and robust real-time performance.
FAQ
What is the maximum operating frequency of the MK20DX128VLH7?
The MK20DX128VLH7 supports a maximum CPU frequency of 72 MHz in normal run mode using the PLL. This is achieved with a 32 MHz crystal and MCG configuration in FEE mode. At this speed, the MK20DX128VLH7 delivers over 100 DMIPS, enabling real-time execution of control algorithms and communication stacks without external acceleration. The MK20DX128VLH7 maintains full peripheral functionality-including USB, CAN, and dual ADCs-at this clock rate.
Does the MK20DX128VLH7 include a hardware floating-point unit (FPU)?
No, the MK20DX128VLH7 implements the ARM Cortex-M4 core with DSP extensions but does not include a hardware FPU. It supports integer and fixed-point arithmetic efficiently, including single-cycle MAC and SIMD instructions. For applications requiring IEEE-754 floating-point operations, designers should consider the K22F512VLH12 or later Kinetis variants with M4F cores. The MK20DX128VLH7 remains optimal for deterministic control tasks where fixed-point math meets precision requirements.
What analog features are integrated into the MK20DX128VLH7?
The MK20DX128VLH7 integrates two independent 16-bit SAR ADCs, each with a programmable gain amplifier (PGA) offering gains from x1 to x64, a 12-bit DAC, three analog comparators (each with a 6-bit DAC and programmable reference), and a precision voltage reference module. These features enable direct high-resolution sensor interfacing - such as strain gauges, thermocouples, and current shunts - without external signal conditioning. All analog blocks are powered from a dedicated VDDA rail to ensure noise isolation critical for the MK20DX128VLH7's metrology-grade performance.
Is the MK20DX128VLH7 qualified for automotive applications?
The MK20DX128VLH7 is specified for an extended temperature range of -40°C to +105°C and meets AEC-Q100 stress test requirements for Grade 2 components. While not formally AEC-Q100 certified out-of-box, its electrical and thermal specifications align with automotive under-hood and cabin use cases - particularly in diagnostic tools, body control modules, and sensor interfaces. System-level qualification remains the responsibility of the end customer, but the MK20DX128VLH7's design foundation and qualification data provide strong evidence for automotive deployment.
How does the MK20DX128VLH7 support low-power operation in battery-powered devices?
The MK20DX128VLH7 offers seven distinct low-power modes, including VLLS1–3 with currents as low as 1.47 μA (VLLS1) and 1.9 μA (VLLS3) at 3.0 V. Wake-up sources include GPIO, RTC alarm, low-power timer, and analog comparator events - all functional in deep sleep states. Its low-leakage wakeup unit and autonomous peripheral operation (e.g., ADC conversions triggered by LPTMR) allow the MK20DX128VLH7 to perform sensor polling and data aggregation without waking the CPU, extending battery life significantly in wireless edge nodes.
MK20DX128VLH7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis K20
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, SPI, UART/USART, USB, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 24x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK20DX128VLH7 FAQ
1.How can I place an order for MK20DX128VLH7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK20DX128VLH7 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 MK20DX128VLH7 reliable?
The price and inventory of MK20DX128VLH7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK20DX128VLH7 is usually 5 days.
3.What payment methods are accepted for MK20DX128VLH7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK20DX128VLH7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK20DX128VLH7?
MK20DX128VLH7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK20DX128VLH7 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 MK20DX128VLH7?
For technical support, including MK20DX128VLH7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK20DX128VLH7 requirements.
6.How does Aetrix verify that MK20DX128VLH7 is sourced from the original manufacturer or authorized distributors?
All MK20DX128VLH7 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 MK20DX128VLH7 meets industry standards.
7.What is the process for return or replacement of MK20DX128VLH7?
All MK20DX128VLH7 units undergo pre-shipment inspection (PSI). If there is an issue with MK20DX128VLH7, 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 MK20DX128VLH7 part is unused and in its original packaging.
Return procedure for MK20DX128VLH7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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