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NXP Semiconductors MKE14Z256VLH7R
- Part No.:
- MKE14Z256VLH7R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKE14Z256VLH7R.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
MKE14Z256VLH7R from NXP Semiconductors is a 64-pin LQFP ARM® Cortex®-M0+ microcontroller operating up to 72 MHz, featuring 256 KB flash, 32 KB SRAM, and dual 12-bit 1 Msps ADCs - optimized for BLDC motor control and industrial HMI systems with robust low-power operation.
For engineers reviewing the MKE14Z256VLH7R datasheet, MKE14Z256VLH7R pinout, MKE14Z256VLH7R application, or MKE14Z256VLH7R equivalent, key selection criteria include its 64-LQFP package, absence of TSI (unlike KE15Z variants), support for three LPUARTs/LPSPIs/LPI2Cs, and FlexTimer-based PWM generation for motor drive timing precision.
Technical Context
The MKE14Z256VLH7R implements an ARMv6-M Thumb®-2 ISA core with configurable NVIC, MMDVSQ divider/sqrt unit, and 8-channel eDMA extended to 63 sources via DMAMUX. Its clock system integrates FIRC (±1%), SIRC (±3%), OSC32, and LPFLL for flexible low-power timing.
Peripheral integration includes three FlexTimers (FTM) supporting deadtime insertion and fault protection for motor control, two 12-bit ADCs with hardware-triggered sampling and self-calibration, and dual analog comparators each with integrated 8-bit DAC - all functional in VLPS/Stop modes using SIRC or OSC32 clocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, up to 72 MHz - enables deterministic real-time control at low power budget. |
| Memory | 256 KB flash / 32 KB SRAM / 32 KB FlexNVM + 2 KB FlexRAM - supports firmware updates and EEPROM emulation without external storage. |
| ADC | Dual 12-bit SAR, 1 Msps max, 16+11 channel inputs - delivers high-resolution current/voltage sensing for closed-loop motor control. |
| Timers | 3× FTM (8-channel PWM), 1× LPTMR, 1× PDB, 1× LPIT (4-channel) - provides synchronized gate drive, phase timing, and periodic wake-up in ultra-low-power states. |
| Communication | 3× LPUART, 2× LPSPI, 2× LPI2C, FlexIO - enables robust serial connectivity with DMA support and low-power mode retention. |
| Power Range | 2.7–5.5 V supply, –40 to 105 °C ambient - suitable for industrial motor drives and embedded control in harsh environments. |
| Security | Flash Access Control (FAC), CRC generator, 128-bit UID, WDOG/EWM - ensures firmware integrity and tamper-resistant boot in safety-critical applications. |
Pinout & Package
64-pin LQFP (VLH7), 10 mm × 10 mm × 1.4 mm, 0.5 mm pitch - compatible with standard PCB assembly processes and space-constrained industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dedicated pairs per quadrant ensure stable core/peripheral voltage under dynamic load. |
| PTA0–PTA31, PTB0–PTB15, etc. | GPIO / Multiplexed peripheral I/O | 58 total GPIOs with interrupt capability; 8 support high-drive (20 mA) for direct LED/relay interface. |
| ADC0_SE0–ADC0_SE15, ADC1_SE0–ADC1_SE10 | Analog input channels | 27 total ADC inputs (16+11) mapped across ports A/B/C/D/E - enables simultaneous phase current and bus voltage sampling. |
| FTM0_CH0–FTM0_CH7, FTM1_CH0–FTM1_CH3, FTM2_CH0–FTM2_CH3 | PWM output / Capture input | 16 total FTM channels distributed across three modules - supports 3-phase BLDC commutation with complementary outputs and deadtime control. |
| LPUART0_TX/LPUART0_RX, etc. | Serial communication I/O | Three independent LPUARTs with separate clock domains - allow concurrent debug, host command, and sensor telemetry links. |
Key Features
| Feature | Design Value |
|---|---|
| FlexTimer with deadtime insertion | Enables safe, glitch-free complementary PWM for IGBT/MOSFET half-bridge drivers without external logic. |
| Dual 12-bit ADC with hardware trigger sync | Allows precise time-aligned sampling of motor phase currents and DC-link voltage for field-oriented control (FOC). |
| Low-power peripherals active in VLPS | LPUART, LPSPI, LPI2C, CMP, ADC, RTC remain operational using SIRC/OSC32 - extends battery life in always-on monitoring nodes. |
| Boot ROM with UART/I2C/SPI bootloader | Permits field firmware updates without JTAG debugger - reduces production and maintenance tooling cost. |
| Flash Access Control (FAC) | Divides 256 KB flash into 32 protected regions - secures proprietary motor control algorithms against unauthorized readout or overwrite. |
Applications
| Industrial Motor Drive | Smart Power Metering |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC compressors and pump systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, synchronized PWM generation, and current/voltage sensing via dual ADCs. Use Value: Achieves >95% efficiency with <1 µs PWM timing jitter and sub-100 ns ADC sampling alignment - critical for torque ripple reduction. |
Use Scenario: High-accuracy energy measurement in DIN-rail mounted utility meters with tamper detection. IC Role / Device Role / Timing Role: Simultaneous sampling of voltage/current waveforms, harmonic analysis, and secure data logging to FlexNVM. Use Value: Dual 12-bit ADCs with hardware averaging and temperature compensation enable Class 0.5 accuracy per IEC 62053-21. |
| Factory Automation I/O Module | Industrial Gateway Edge Node |
Use Scenario: Distributed digital input/output expansion with isolation and diagnostics for PLC backplanes. IC Role / Device Role / Timing Role: High-drive GPIO management, fast edge-triggered interrupt handling, and CRC-protected SPI slave communication. Use Value: 8 high-drive pins (20 mA) directly interface optocouplers and solid-state relays; 58 GPIOs support scalable modular I/O design. |
Use Scenario: Protocol translation between Modbus RTU field devices and MQTT cloud uplink via cellular/Wi-Fi module. IC Role / Device Role / Timing Role: Low-power serial bridging using three LPUARTs and two LPI2Cs, with FlexIO for custom physical layer adaptation. Use Value: Independent LPUART clock domains prevent bus contention; FlexIO reconfigurability supports legacy RS-485 timing without FPGA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKE15Z256VLH7 | Includes TSI module; otherwise identical memory, peripherals, and package. | Required for capacitive touch HMI front panels; unnecessary if only motor control or serial gateway functions are needed. | Select MKE14Z256VLH7R when TSI is not required - reduces BOM cost and simplifies layout by eliminating TSI decoupling components. |
| KL17Z256VLH7 | ARM Cortex-M0+, 48 MHz max, 256 KB flash, 32 KB RAM, but lacks FTM deadtime, FlexNVM, and LPUART/LPSPI/LPI2C low-power retention. | Suitable for basic sensor nodes or simple control; insufficient for real-time BLDC commutation or always-on serial bridges. | Choose MKE14Z256VLH7R over KL17Z256VLH7 when deterministic 72 MHz timing, motor-grade PWM, or VLPS-mode serial interfaces are mandatory. |
Compared with MKE15Z256VLH7, MKE14Z256VLH7R removes TSI to lower cost while retaining full motor control capability; compared with KL17Z256VLH7, it adds critical features like deadtime insertion, FlexNVM, and low-power serial retention - making it uniquely suited for industrial edge control where performance, memory flexibility, and power efficiency must coexist.
Availability
MKE14Z256VLH7R is available at Aetrix Electronics and suitable for industrial motor drives, smart metering systems, and factory automation I/O modules requiring stable component supply across extended product lifecycles.
Supply support for MKE14Z256VLH7R 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The Kinetis KE1xZ family targets cost-sensitive, high-reliability industrial control - delivering Cortex-M0+ performance with enhanced analog integration, motor control peripherals, and robust low-power operation for embedded edge devices.
FAQ
What is the maximum operating frequency of the MKE14Z256VLH7R?
The MKE14Z256VLH7R operates at up to 72 MHz using the Fast Internal Reference Clock (FIRC) or external oscillator. This frequency is fully supported across all voltage ranges (2.7–5.5 V) and temperature grades (–40 to 105 °C), enabling deterministic real-time execution for motor control loops and communication stacks without overclocking risk.
Does the MKE14Z256VLH7R include a touch sensing interface (TSI)?
No, the MKE14Z256VLH7R does not include the Touch Sensing Input (TSI) module. Unlike the MKE15Z256VLH7 variant, this part omits TSI to reduce cost and complexity - confirmed in Table 1 of the official datasheet (Rev. 4.3, July 2021). All other analog and timing peripherals remain identical.
How many ADC channels does the MKE14Z256VLH7R support?
The MKE14Z256VLH7R integrates two independent 12-bit SAR ADC modules: ADC0 supports up to 16 single-ended inputs, and ADC1 supports up to 11 - totaling 27 analog input channels. This configuration is explicitly documented in the ordering information table and electrical characteristics section of the KE1xZ datasheet.
What low-power modes are supported by the MKE14Z256VLH7R?
The MKE14Z256VLH7R supports six power modes: Run, Wait, Stop, VLPR, VLPW, and VLPS - managed by the Power Management Controller (PMC). In VLPS mode, peripherals including LPUART, LPSPI, LPI2C, CMP, ADC, RTC, and LPIT remain functional using SIRC or OSC32 clocks, enabling sub-10 µA sleep current with rapid wake-up capability.
Is the MKE14Z256VLH7R pin-compatible with other KE1xZ family members in the same package?
Yes, the MKE14Z256VLH7R shares identical 64-LQFP pinout and signal mapping with MKE15Z256VLH7 and MKE14Z128VLH7 - verified in Section 4.1 ("KE1xZ Signal Multiplexing and Pin Assignments") of the datasheet. Functional differences (e.g., TSI presence or Flash size) do not affect pin assignment or electrical compatibility.
MKE14Z256VLH7R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis KE1xZ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- FlexIO, I2C, SPI, UART/USART
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 58
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 34K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKE14Z256VLH7R FAQ
1.How can I place an order for MKE14Z256VLH7R through Aetrix?
Please submit a Request for Quotation (RFQ) for MKE14Z256VLH7R 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 MKE14Z256VLH7R reliable?
The price and inventory of MKE14Z256VLH7R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKE14Z256VLH7R is usually 5 days.
3.What payment methods are accepted for MKE14Z256VLH7R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKE14Z256VLH7R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKE14Z256VLH7R?
MKE14Z256VLH7R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKE14Z256VLH7R 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 MKE14Z256VLH7R?
For technical support, including MKE14Z256VLH7R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKE14Z256VLH7R requirements.
6.How does Aetrix verify that MKE14Z256VLH7R is sourced from the original manufacturer or authorized distributors?
All MKE14Z256VLH7R 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 MKE14Z256VLH7R meets industry standards.
7.What is the process for return or replacement of MKE14Z256VLH7R?
All MKE14Z256VLH7R units undergo pre-shipment inspection (PSI). If there is an issue with MKE14Z256VLH7R, 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 MKE14Z256VLH7R part is unused and in its original packaging.
Return procedure for MKE14Z256VLH7R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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