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NXP Semiconductors MK20DX256VMC7
- Part No.:
- MK20DX256VMC7
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 121-LFBGA
- Datasheet:
-
MK20DX256VMC7.pdf
- Description:
- IC MCU 32B 256KB FLASH 121MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,403
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Product details
Overview
MK20DX256VMC7 from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M4 microcontroller with DSP extensions, 256 KB flash, 64 KB RAM, and 72 MHz CPU frequency. It integrates dual 16-bit SAR ADCs with PGA, 12-bit DAC, CAN, USB OTG, five UARTs, and operates from 1.71–3.6 V across –40 to 105°C ambient. Used in industrial motor control and embedded HMI systems requiring real-time analog acquisition and low-power operation.
For engineers reviewing the MK20DX256VMC7 datasheet, MK20DX256VMC7 pinout, MK20DX256VMC7 application, or MK20DX256VMC7 equivalent, key selection criteria include its 72 MHz Cortex-M4 core, 256 KB flash/64 KB RAM configuration, 121-pin MAPBGA package, integrated CAN + USB OTG interface, and support for multiple low-power stop modes down to 1.47 µA (VLLS1).
Technical Context
The MK20DX256VMC7 implements the K20 sub-family architecture with MCG clock generator supporting FEE/FBE/BLPE modes, enabling flexible system clocking up to 72 MHz. Its memory subsystem includes 256 KB on-chip flash with FlexMemory partitioning capability and 64 KB SRAM with parity protection.
Peripherals are organized into domain-specific clock gates: ADCs and comparators share the ADC clock domain; CAN and USB operate from dedicated clock sources; and the 16-channel DMA controller supports scatter-gather transfers across UART, SPI, I2S, and ADC channels without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 with DSP extension - enables fixed-point FFT, FIR filtering, and motor control algorithms in real time |
| Flash / RAM | 256 KB program flash + 64 KB SRAM - sufficient for complex control stacks with bootloader, OTA update partition, and data logging buffers |
| Max Clock Frequency | 72 MHz system clock - delivers 115 DMIPS performance while maintaining sub-100 µA/MHz active power efficiency |
| Analog Peripherals | Dual 16-bit SAR ADCs (each with x64 PGA), 12-bit DAC, 3× analog comparators - supports closed-loop sensor signal conditioning and actuator feedback |
| Communication Interfaces | CAN 2.0B, USB 2.0 Full/Low-Speed OTG, 5× UART, 2× SPI, 2× I²C, I²S - enables multi-protocol fieldbus connectivity and host/device flexibility |
| Operating Voltage / Temp | 1.71–3.6 V supply, –40 to 105°C ambient - qualified for under-hood automotive and industrial control cabinet deployment |
| Low-Power Modes | VLLS1/VLLS2/VLLS3 stop modes drawing 1.47–2.6 µA - preserves RTC and RAM state during extended sleep in battery-powered edge nodes |
Pinout & Package
Package: 121-pin MAPBGA (8 mm × 8 mm, MC suffix), 0.5 mm pitch, RoHS-compliant, thermal pad exposed on bottom.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTE0–PTE31 | GPIO Port E pins | 32-bit general-purpose I/O bank with configurable slew rate, drive strength, and digital filter - supports high-speed encoder input capture or PWM output |
| PTA0–PTA31 | GPIO Port A pins | 32-bit GPIO bank with TSI capacitive touch sensing capability on select pins - enables button/slider HMI without external IC |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16 single-ended inputs for ADC0, mapped to physical pins with shared multiplexing - allows simultaneous sampling of voltage, current, and temperature sensors |
| CAN0_TX / CAN0_RX | CAN transceiver interface | Dedicated differential pair with internal termination resistors - eliminates need for external CAN bus transceiver in basic applications |
| USB0_DP / USB0_DM | USB 2.0 differential data lines | On-chip full-speed transceiver with 1.5 kΩ pull-up on DP - supports device enumeration without external PHY |
| VDD / VSS | Power / ground planes | Multiple distributed VDD/VSS pairs per side - ensures stable core/analog supply under dynamic load switching |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC module | Accelerates checksum calculation for firmware integrity verification and communication frame validation at full bus clock speed |
| Programmable gain amplifier (PGA) | Integrated x1/x2/x4/x8/x16/x32/x64 gain stages per ADC channel - eliminates external op-amp stages for microvolt-level sensor signals |
| Low-leakage wakeup unit | Enables wake-from-VLLS3 on GPIO, RTC alarm, or analog comparator event within 73 µs - critical for ultra-low-duty-cycle sensor nodes |
| Multi-purpose clock generator (MCG) | Configurable PLL, FLL, and internal reference oscillator - provides robust clock redundancy and fail-safe reconfiguration during voltage transients |
| 128-bit unique chip ID | Factory-programmed serial number accessible via memory-mapped register - enables secure device authentication and license binding |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers using hall-effect feedback and current sensing. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, synchronized PWM generation, and ADC sampling at 100 kSPS with hardware trigger chaining. Use Value: Dual ADCs with PGA enable direct connection of shunt resistor and thermistor without signal conditioning; CAN interface allows integration into building automation networks. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with wireless upload. IC Role / Device Role / Timing Role: System controller managing sensor polling, data fusion, low-power RTC wake scheduling, and USB/UART debug interface. Use Value: VLLS1 mode draws only 1.47 µA at –40°C, extending 2000 mAh Li-SOCl₂ battery life to >10 years; TSI interface supports capacitive touch wake without additional components. |
| Medical Infusion Pump | Automotive Body Controller |
Use Scenario: Precise fluid delivery system requiring safety-critical pressure monitoring and stepper motor actuation. IC Role / Device Role / Timing Role: Safety monitor executing ASIL-B diagnostics, controlling motor drivers via PWM, and digitizing analog pressure transducer outputs. Use Value: Hardware CRC validates flash integrity before each boot; 12-bit DAC generates calibrated reference voltages for sensor excitation; –40 to 105°C rating meets automotive under-dash requirements. | Use Scenario: Central body control module managing door locks, lighting, and window lift functions in entry-level vehicles. IC Role / Device Role / Timing Role: CAN network node coordinating with gateway ECU, driving high-side/low-side switches, and detecting switch inputs with debounced GPIO. Use Value: Integrated CAN controller reduces BOM cost vs. discrete transceiver solutions; five UARTs support diagnostic, LIN slave emulation, and debug interfaces simultaneously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK20DX128VMC7 | 128 KB flash, same 121-pin MAPBGA package, identical peripheral set and clock architecture | Reduced code space limits complex protocol stacks or large GUI assets; suitable for cost-sensitive motor control where feature count is constrained | Select when firmware size remains under 120 KB and no FlexMemory expansion is required |
| MK20DN512ZVMD10 | 512 KB flash, 144-pin MAPBGA, 100 MHz CPU, no USB OTG - adds Ethernet MAC and enhanced security features | Targeted at gateway-class devices requiring larger RTOS footprint and network bridging; lacks USB device capability | Choose for applications needing >256 KB firmware headroom and Ethernet connectivity, accepting larger package and higher cost |
Compared with MK20DX128VMC7, the MK20DX256VMC7 provides double flash capacity for feature-rich firmware and bootloader resilience; versus MK20DN512ZVMD10, it retains USB OTG at lower pin count and cost, making it optimal for compact embedded controllers where Ethernet is unnecessary.
Availability
MK20DX256VMC7 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 and long-term lifecycle assurance.
Supply support for MK20DX256VMC7 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 Kinetis MCU portfolio.
The K20 series - including MK20DX256VMC7 - was designed for real-time embedded control applications demanding mixed-signal precision, deterministic timing, and scalable low-power operation across harsh environments.
FAQ
What is the maximum operating frequency of the MK20DX256VMC7?
The MK20DX256VMC7 supports a maximum system and core clock frequency of 72 MHz. This is achieved using the internal MCG clock generator in FEE mode with an external crystal or oscillator input. The 72 MHz operation is fully characterized across the –40 to 105°C temperature range and 1.71–3.6 V supply voltage, delivering 115 DMIPS of processing performance. MK20DX256VMC7 maintains this frequency while powering all integrated peripherals including dual ADCs, CAN, and USB OTG.
Does the MK20DX256VMC7 include an integrated USB transceiver?
Yes, the MK20DX256VMC7 integrates a full-speed/low-speed USB 2.0 On-The-Go controller with an on-chip transceiver. It supports both device and host roles without requiring an external PHY. The USB differential pair (USB0_DP/USB0_DM) includes internal 1.5 kΩ pull-up on DP for device enumeration and complies with USB 2.0 electrical specifications across the full operating voltage and temperature range. MK20DX256VMC7 also includes dedicated USB voltage regulator (VREGIN) and DCD circuitry.
What low-power modes are supported by the MK20DX256VMC7?
The MK20DX256VMC7 supports seven low-power modes: RUN, WAIT, VLPR, STOP, VLPS, LLS, and VLLSx (VLLS0–VLLS3). In VLLS1 mode, it draws just 1.47 µA at –40°C while retaining RTC, 32 kHz oscillator, and selected RAM; VLLS3 draws 1.9 µA with deeper retention. Wakeup occurs in ≤73 µs from VLLS3 via GPIO, RTC alarm, or analog comparator. MK20DX256VMC7 uses these modes to meet stringent energy budgets in battery-powered edge devices.
How much flash and RAM does the MK20DX256VMC7 contain?
The MK20DX256VMC7 contains 256 KB of on-chip program flash memory and 64 KB of SRAM. Flash supports read-while-write, secure boot, and FlexMemory partitioning (allowing configurable EEPROM-like sectors). SRAM includes parity checking for safety-critical applications. Both memories are accessible at full 72 MHz bus speed. MK20DX256VMC7's memory map is optimized for real-time control stacks, supporting dual-bank firmware updates and persistent data logging without external storage.
Is the MK20DX256VMC7 pin-compatible with other K20 family members?
The MK20DX256VMC7 uses the 121-pin MAPBGA (MC) package and shares identical pinout with MK20DX128VMC7 and MK20DX64VMC7. All three share the same mechanical footprint, thermal pad layout, and signal-to-pin mapping per the K20P100M72SF1 datasheet. However, MK20DX256VMC7 is not pin-compatible with LQFP or QFN variants (e.g., VLL7 or FM packages) due to differing pin counts and assignments. MK20DX256VMC7 enables drop-in replacement among MC-package K20 devices with matching flash/RAM requirements.
MK20DX256VMC7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 121-LFBGA
- 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:
- 70
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 35x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK20DX256VMC7 FAQ
1.How can I place an order for MK20DX256VMC7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK20DX256VMC7 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 MK20DX256VMC7 reliable?
The price and inventory of MK20DX256VMC7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK20DX256VMC7 is usually 5 days.
3.What payment methods are accepted for MK20DX256VMC7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK20DX256VMC7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK20DX256VMC7?
MK20DX256VMC7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK20DX256VMC7 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 MK20DX256VMC7?
For technical support, including MK20DX256VMC7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK20DX256VMC7 requirements.
6.How does Aetrix verify that MK20DX256VMC7 is sourced from the original manufacturer or authorized distributors?
All MK20DX256VMC7 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 MK20DX256VMC7 meets industry standards.
7.What is the process for return or replacement of MK20DX256VMC7?
All MK20DX256VMC7 units undergo pre-shipment inspection (PSI). If there is an issue with MK20DX256VMC7, 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 MK20DX256VMC7 part is unused and in its original packaging.
Return procedure for MK20DX256VMC7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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