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NXP Semiconductors MK12DX256VLH5
- Part No.:
- MK12DX256VLH5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MK12DX256VLH5.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:640
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Product details
Overview
MK12DX256VLH5 from NXP (formerly Freescale) is a 50 MHz ARM Cortex-M4 microcontroller with DSP extension, featuring 256 KB on-chip program flash and 64 KB RAM, designed for embedded control in industrial sensors and motor-drive interfaces operating across –40°C to 105°C.
For engineers reviewing the MK12DX256VLH5 datasheet, MK12DX256VLH5 pinout, MK12DX256VLH5 application, or MK12DX256VLH5 equivalent, key selection considerations include FlexNVM support, low-power stop-mode current down to 0.36 µA, USB charger detection capability, and 64-pin LQFP package compatibility with industrial PCB layouts.
Technical Context
The MK12DX256VLH5 implements a dual-oscillator clock system with 3–32 MHz main crystal and 32 kHz RTC crystal, feeding a multi-purpose clock generator that supports dynamic frequency scaling between 50 MHz Run mode and 4 MHz Very-Low-Power Run (VLPR) mode. Its memory subsystem integrates 256 KB flash with FlexNVM partitioning (64 KB FlexNVM + 4 KB FlexRAM), enabling EEPROM-emulation without external components.
Peripherals include eight-channel PWM timer with motor control support, two I²C modules, four UARTs, SPI, I²S, 16-bit SAR ADC, 12-bit DAC, two analog comparators with integrated 6-bit DACs, and hardware CRC acceleration - all accessible via multiplexed GPIO pins under full DMA control with up to 63 request sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 with DSP instructions, 50 MHz max - delivers deterministic real-time control with single-cycle MAC operations |
| Flash Memory | 256 KB program flash + 64 KB FlexNVM - enables field-upgradable firmware and wear-levelled data logging |
| RAM | 64 KB SRAM - sufficient for RTOS stacks, communication buffers, and sensor fusion algorithms |
| Operating Voltage | 1.71–3.6 V - supports direct Li-ion battery (3.0–3.7 V) and regulated 1.8/3.3 V rail operation |
| Temperature Range | –40°C to +105°C - qualified for under-hood automotive and industrial enclosure environments |
| Low-Power Stop Current | 0.36 µA at VDD = 3.0 V, –40°C to 25°C (VLLS0, POR disabled) - enables multi-year battery life in wireless sensor nodes |
| Analog Peripherals | 16-bit SAR ADC (up to 2 MSPS), 12-bit DAC, two CMPs with 6-bit DAC references - supports closed-loop analog signal conditioning |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Multiple dedicated pairs ensure stable core voltage delivery and noise isolation for mixed-signal operation |
| VDDA, VSSA | Analog power supply and ground | Separate analog domain with ≤0.1 V differential tolerance - critical for ADC/DAC accuracy |
| EXTAL, XTAL | Main crystal oscillator input/output | Supports 3–32 MHz fundamental-mode crystals - enables precise timing for USB and motor control loops |
| RTC_XTAL32, RTC_EXTAL32 | 32 kHz RTC crystal interface | Enables autonomous real-time clock operation during deep sleep modes with <1 µA retention current |
| USB_VBUS, USB_DP, USB_DM | USB Device interface | Integrated charger detect logic allows host-powered enumeration without external circuitry |
| PTA0–PTA31, PTB0–PTB15, etc. | Multiplexed GPIO ports | Up to 56 configurable digital I/Os with internal pullups/pulldowns (22–50 kΩ) and 7 pF input capacitance |
Key Features
| Feature | Design Value |
|---|---|
| FlexMemory architecture | 64 KB FlexNVM + 4 KB FlexRAM enables EEPROM-like wear leveling and atomic write operations without external memory |
| Low-leakage wakeup unit | Supports wake-from-VLLS0 on GPIO, RTC alarm, or analog comparator event - eliminates need for external interrupt controllers |
| Hardware CRC module | Accelerates checksum calculation for firmware updates and communication frame validation at full bus clock speed |
| Multi-mode clock gating | Independent enable/disable of peripheral clocks (UART, I²C, ADC) reduces active-mode current by up to 30% vs. static clocking |
| 128-bit unique chip ID | Factory-programmed serial number used for secure device authentication and license binding in production firmware |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via UART-to-LoRaWAN gateway. IC Role / Device Role / Timing Role: Primary controller executing sensor acquisition, calibration, and packet framing; RTC provides timestamping and scheduled wake-up. Use Value: VLLS0 stop-mode current of 0.36 µA extends 2×AA battery life beyond 5 years while maintaining RTC and RAM retention. | Use Scenario: BLDC motor driver board requiring PWM generation, current sensing, and fault monitoring. IC Role / Device Role / Timing Role: Real-time motion controller generating synchronized 8-channel PWM with quadrature encoder input capture. Use Value: Dedicated motor-control timer with dead-time insertion and fault-triggered shutdown ensures safe commutation under dynamic load conditions. |
| USB-C Powered Peripheral | Smart Energy Meter Interface |
Use Scenario: Portable diagnostic tool drawing power and communicating via USB-C port. IC Role / Device Role / Timing Role: USB Device endpoint with built-in charger detection - identifies host power source and configures VBUS monitoring. Use Value: Eliminates external USB ID pin detection circuitry and reduces BOM count by one IC. | Use Scenario: DIN-rail mounted meter reading AC voltage/current via isolated sigma-delta ADC front-end. IC Role / Device Role / Timing Role: System manager interfacing with metrology ASIC via SPI, managing EEPROM-backed tariff tables and tamper logs. Use Value: FlexNVM provides 100k-cycle endurance for daily energy log writes - avoids premature flash wear-out in 10+ year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK12DN512VLH5 | 512 KB flash, no FlexNVM; same 64-pin LQFP package and 50 MHz core | Better suited for large firmware images without EEPROM emulation needs | Select when application requires maximum code space and does not rely on FlexMemory features |
| MKE15Z256VLH7 | ARM Cortex-M0+, 48 MHz, 256 KB flash, 32 KB RAM, identical 64-pin LQFP | Lower power consumption in VLPS mode (1.9 µA), no DSP or FPU | Choose for cost-sensitive, non-DSP applications where real-time math is minimal |
Compared with MK12DX256VLH5, MK12DN512VLH5 trades FlexNVM capability for double flash capacity, while MKE15Z256VLH7 reduces computational capability and analog feature depth to achieve lower static current - making each suitable for distinct firmware complexity and data persistence requirements.
Availability
MK12DX256VLH5 is available at Aetrix Electronics and suitable for industrial sensor nodes, motor-control interfaces, and USB-C powered peripherals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MK12DX256VLH5 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 headquarters in Eindhoven, Netherlands.
The Kinetis K12 family, including MK12DX256VLH5, was engineered for cost-optimized, low-power industrial control applications demanding robust analog integration, flexible memory architecture, and extended temperature reliability.
FAQ
What is the maximum operating frequency of the MK12DX256VLH5?
The MK12DX256VLH5 operates at a maximum system and core clock frequency of 50 MHz, as confirmed in the K12 Sub-Family Data Sheet Rev. 4 (Section 5.3.1). This frequency is achievable using the internal MCG in FEI or PEE modes with appropriate crystal or external clock source, and is sustained across the full –40°C to +105°C ambient temperature range under 1.71–3.6 V supply conditions.
Does the MK12DX256VLH5 include FlexNVM memory?
Yes, the MK12DX256VLH5 includes 64 KB of FlexNVM and 4 KB of FlexRAM, as explicitly stated in the K12 Sub-Family Data Sheet (Section "Memories and memory interfaces"). The 'X' in the part number denotes FlexMemory configuration, distinguishing it from 'N'-suffix variants like MK12DN512VLH5 which contain only program flash.
What package type does the MK12DX256VLH5 use?
The MK12DX256VLH5 uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch), identified by the 'LH' suffix per the K12 part numbering guide (Section 2.3). This package is RoHS-compliant, rated MSL3, and supports standard reflow profiles per IPC/JEDEC J-STD-020.
Can the MK12DX256VLH5 operate from a single 3.3 V supply?
Yes, the MK12DX256VLH5 supports operation from a single 3.3 V supply, within its specified 1.71–3.6 V VDD range (Section 5.2.1). Both VDD and VDDA may be tied to the same 3.3 V rail, provided the VDD–VDDA differential remains within ±0.1 V - a condition easily met with proper PCB decoupling and layout.
What is the lowest achievable stop-mode current for the MK12DX256VLH5?
The lowest stop-mode current for the MK12DX256VLH5 is 0.359 µA at 3.0 V and –40°C to 25°C ambient, achieved in VLLS0 mode with POR detect circuit disabled (Table 6, IDD_VLLS0). This value is measured with RTC and RAM retention enabled, confirming suitability for ultra-low-power battery-backed applications.
MK12DX256VLH5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis K10
- Packaging:
- Tray
- 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
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 44
- 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 22x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK12DX256VLH5 FAQ
1.How can I place an order for MK12DX256VLH5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK12DX256VLH5 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 MK12DX256VLH5 reliable?
The price and inventory of MK12DX256VLH5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK12DX256VLH5 is usually 5 days.
3.What payment methods are accepted for MK12DX256VLH5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK12DX256VLH5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK12DX256VLH5?
MK12DX256VLH5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK12DX256VLH5 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 MK12DX256VLH5?
For technical support, including MK12DX256VLH5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK12DX256VLH5 requirements.
6.How does Aetrix verify that MK12DX256VLH5 is sourced from the original manufacturer or authorized distributors?
All MK12DX256VLH5 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 MK12DX256VLH5 meets industry standards.
7.What is the process for return or replacement of MK12DX256VLH5?
All MK12DX256VLH5 units undergo pre-shipment inspection (PSI). If there is an issue with MK12DX256VLH5, 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 MK12DX256VLH5 part is unused and in its original packaging.
Return procedure for MK12DX256VLH5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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