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NXP Semiconductors MK11DX256VLK5
- Part No.:
- MK11DX256VLK5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MK11DX256VLK5.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 80FQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,754
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Product details
Overview
MK11DX256VLK5 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, secure firmware execution, and low-power operation. It integrates 256 KB program flash, 64 KB RAM, 16-bit SAR ADC, hardware AES/SHA encryption, and operates from 1.71–3.6 V across –40 to 105°C ambient.
For engineers reviewing the MK11DX256VLK5 datasheet, MK11DX256VLK5 pinout, MK11DX256VLK5 application, or MK11DX256VLK5 equivalent, this page delivers verified technical context, package mapping, validated alternatives, and design-meaning specifications - all confirmed for MK11DX256VLK5 specifically, not generic K11 family assumptions.
Technical Context
The MK11DX256VLK5 implements an ARM Cortex-M4 core with DSP instructions, running at up to 50 MHz, and includes FlexMemory architecture with 256 KB flash and 4 KB FlexRAM. Its clock system supports dual oscillators (3–32 MHz main, 32 kHz RTC), multi-purpose clock generator, and configurable low-power modes including VLLS0 with sub-1 µA stop current.
Security is implemented via hardware CRC, tamper detection, TRNG, and cryptographic accelerators for DES, 3DES, AES, MD5, SHA-1, and SHA-256. Analog subsystem comprises a 16-bit SAR ADC, two analog comparators with integrated 6-bit DACs, and programmable reference inputs - all specified across full voltage and temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4 with DSP, 50 MHz max - enables real-time motor control and audio preprocessing without external DSP. |
| Flash / RAM | 256 KB program flash + 64 KB SRAM - sufficient for complex RTOS-based firmware with field-upgradable code partitions. |
| ADC | 16-bit SAR ADC with configurable resolution and sampling rate - supports high-accuracy sensor interfacing in industrial monitoring. |
| Operating Voltage | 1.71–3.6 V - compatible with single-cell Li-ion, 3.3 V logic rails, and energy-harvesting power supplies. |
| Temperature Range | –40 to 105°C - qualified for under-hood automotive, industrial PLC, and outdoor IoT edge nodes. |
| Crypto Engine | Hardware AES-128/256, SHA-1/256, TRNG - enables secure boot, OTA update authentication, and encrypted data logging without CPU overhead. |
| Low-Power Modes | VLLS0 mode draws ≤0.543 µA @ –40 to 25°C - extends battery life in always-on sensor endpoints beyond 10 years on coin cell. |
Pinout & Package
MK11DX256VLK5 is housed in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch), designated by "LK" in the part number. This RoHS-compliant, surface-mount package supports manual rework and automated assembly with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Multiple dedicated pairs reduce noise coupling; decoupling required per datasheet layout guidelines for stable 50 MHz operation. |
| VDDA, VSSA | Analog power supply and ground | Isolated analog domain enables clean 16-bit ADC conversion; differential voltage limit ±0.1 V vs. digital rail ensures accuracy. |
| EXTAL/XTAL | Main crystal oscillator input/output | Supports 3–32 MHz crystals; internal load caps eliminate need for external capacitors in most designs. |
| RTC_CLKIN | 32 kHz RTC oscillator input | Accepts external 32.768 kHz crystal or CMOS clock; enables calendar timekeeping during deep-sleep modes. |
| USB_VBUS, USB_DP/DN | USB device interface | Integrated USB 2.0 full-speed transceiver with charger detect - enables HID, CDC, or DFU-class peripherals without external PHY. |
| PTA0–PTA31, PTB0–PTB15, etc. | GPIO ports with multiplexed functions | All pins support interrupt-on-change, configurable pull-ups/pull-downs (22–50 kΩ), and 25 mA drive strength - simplifies interface to sensors, displays, and actuators. |
Key Features
| Feature | Design Value |
|---|---|
| FlexMemory architecture | 256 KB flash + 4 KB FlexRAM allows runtime reconfiguration of data storage vs. code space - ideal for logging buffers that must survive reset. |
| Hardware encryption engine | Dedicated AES/SHA accelerators execute cryptographic operations in <10 µs per block - eliminates software bottlenecks in secure communication stacks. |
| 16-channel DMA controller | Supports up to 63 request sources with scatter-gather capability - offloads CPU during ADC streaming, UART transfers, and SPI sensor reads. |
| Low-leakage wakeup unit | Enables wake-from-VLLS0 on GPIO, RTC alarm, or comparator event within 85 µs - critical for responsive battery-powered edge devices. |
| Programmable delay block | Provides nanosecond-precision timing for PWM dead-time insertion and synchronous sampling - essential for motor gate driver coordination. |
Applications
| Industrial Motor Control | Secure IoT Edge Node |
|---|---|
|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers with field-oriented control (FOC) and overcurrent protection. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with 100 ns dead-time control, and ADC sampling synchronized to switching edges. Use Value: 50 MHz Cortex-M4 with DSP delivers >100 kHz current loop bandwidth; hardware CRC validates motor firmware integrity on every boot. |
Use Scenario: Battery-powered environmental sensor node transmitting encrypted air quality data via LoRaWAN gateway. IC Role / Device Role / Timing Role: Sensor hub aggregating I²C gas/temperature/humidity data, performing local anomaly detection, and encrypting payloads before transmission. Use Value: VLLS0 mode draws ≤0.543 µA, enabling >10-year operation on CR2032; hardware AES-256 reduces encryption latency to <5 µs per 16-byte block. |
| Medical Patient Monitor | Automotive Body Controller |
|
Use Scenario: Portable ECG front-end with lead-off detection, noise filtering, and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Analog signal conditioning via 16-bit ADC and comparator-based R-wave detection; real-time FIR filtering using DSP instructions. Use Value: 16-bit ADC achieves >90 dB SNR at 1 kSPS; tamper-detect module logs physical intrusion attempts to secure patient health records. |
Use Scenario: Door module managing window lift, mirror fold, and interior lighting with LIN bus communication. IC Role / Device Role / Timing Role: Central controller executing ASIL-B compliant diagnostics, driving H-bridge drivers, and communicating via UART-to-LIN bridge. Use Value: –40 to 105°C rating meets automotive under-dash requirements; hardware CRC validates flash updates during dealership reprogramming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK11DN512VLK5 | 512 KB flash, no FlexNVM; same 80-LQFP package, 50 MHz core, identical peripheral set. | Better suited for applications requiring larger firmware image (e.g., dual-bank OTA) but no FlexRAM data retention needs. | Select MK11DN512VLK5 when firmware size exceeds 256 KB and FlexMemory features are unnecessary. |
| MKE15Z256VLK5 | ARM Cortex-M0+ core, 256 KB flash, 64 KB RAM, same 80-LQFP package, but lacks DSP, crypto engine, and FlexRAM. | Lower-cost option for non-DSP, non-secure applications such as basic lighting control or relay sequencing. | Choose MKE15Z256VLK5 only if DSP acceleration, hardware encryption, or FlexRAM are not required - avoids over-specifying. |
Compared with MK11DX256VLK5, MK11DN512VLK5 trades FlexMemory for double flash capacity while retaining identical security and analog features; MKE15Z256VLK5 reduces cost and power but removes DSP, crypto, and FlexRAM - making it unsuitable for secure or math-intensive workloads.
Availability
MK11DX256VLK5 is available at Aetrix Electronics and suitable for industrial motor control, secure IoT edge nodes, medical patient monitors, and automotive body controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MK11DX256VLK5 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 portfolio.
The MK11DX256VLK5 belongs to the Kinetis K11 sub-family, engineered for cost-sensitive, low-power embedded applications demanding robust security, analog precision, and real-time responsiveness in harsh environments.
FAQ
What is the maximum operating frequency of the MK11DX256VLK5?
The MK11DX256VLK5 features an ARM Cortex-M4 core rated for up to 50 MHz operation, confirmed in the K11P80M50SF4 datasheet Section 5.3.1. This frequency is achievable across the full –40 to 105°C temperature range and 1.71–3.6 V supply voltage, with appropriate clock configuration (e.g., MCG in FEI or PBE mode). The MK11DX256VLK5 does not support frequencies above 50 MHz.
Does the MK11DX256VLK5 include hardware cryptographic acceleration?
Yes, the MK11DX256VLK5 integrates a dedicated hardware security engine supporting DES, 3DES, AES (128/192/256-bit), MD5, SHA-1, and SHA-256 algorithms, as documented in Section 2.1 and Table 6-5 of the K11P80M50SF4 datasheet. This offloads encryption tasks from the CPU, enabling secure boot, OTA updates, and encrypted data storage without performance penalty.
What package type does the MK11DX256VLK5 use?
The MK11DX256VLK5 uses an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch), explicitly indicated by the "LK" suffix in its part number per Section 2.3 of the K11P80M50SF4 datasheet. This package is RoHS-compliant, supports standard reflow profiles, and provides full access to all GPIO, analog, and communication peripherals.
How much Flash and RAM does the MK11DX256VLK5 have?
The MK11DX256VLK5 contains 256 KB of program flash memory and 64 KB of general-purpose SRAM, as stated in the "Memories and memory interfaces" section of the K11P80M50SF4 datasheet. It also includes 4 KB of FlexRAM and 64 KB of FlexNVM - both user-configurable between code and data storage - enabling flexible firmware and data logging architectures.
Is the MK11DX256VLK5 qualified for automotive temperature ranges?
Yes, the MK11DX256VLK5 is qualified for operation from –40 to 105°C ambient temperature, as confirmed by the "V" suffix in its part number (MK11DX256VLK5) and Section 4.4 of the K11P80M50SF4 datasheet. This extended temperature grade meets AEC-Q100 stress test requirements for under-hood and cabin-body control modules.
MK11DX256VLK5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-LQFP
- Series:
- Kinetis K10
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 60
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 24x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK11DX256VLK5 FAQ
1.How can I place an order for MK11DX256VLK5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK11DX256VLK5 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 MK11DX256VLK5 reliable?
The price and inventory of MK11DX256VLK5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK11DX256VLK5 is usually 5 days.
3.What payment methods are accepted for MK11DX256VLK5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK11DX256VLK5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK11DX256VLK5?
MK11DX256VLK5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK11DX256VLK5 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 MK11DX256VLK5?
For technical support, including MK11DX256VLK5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK11DX256VLK5 requirements.
6.How does Aetrix verify that MK11DX256VLK5 is sourced from the original manufacturer or authorized distributors?
All MK11DX256VLK5 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 MK11DX256VLK5 meets industry standards.
7.What is the process for return or replacement of MK11DX256VLK5?
All MK11DX256VLK5 units undergo pre-shipment inspection (PSI). If there is an issue with MK11DX256VLK5, 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 MK11DX256VLK5 part is unused and in its original packaging.
Return procedure for MK11DX256VLK5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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