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NXP Semiconductors MKE14Z256VLH7
- Part No.:
- MKE14Z256VLH7
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKE14Z256VLH7.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,330
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Product details
Overview
MKE14Z256VLH7 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 - deployed in BLDC motor control systems where precise PWM timing and analog sensing are critical.
For engineers reviewing the MKE14Z256VLH7 datasheet, MKE14Z256VLH7 pinout, MKE14Z256VLH7 application, or MKE14Z256VLH7 equivalent, key selection criteria include its 64-LQFP package, absence of TSI (unlike KE15Z variants), support for three LPUARTs and two LPSPIs in low-power modes, and FlexTimer-based dead-time insertion for gate drive safety.
Technical Context
The MKE14Z256VLH7 implements an ARMv6-M architecture with Thumb®-2 ISA, configurable NVIC supporting 32 interrupt vectors and 4 priority levels, and a Memory-Mapped Divide and Square Root (MMDVSQ) module for deterministic math operations. Its eDMA controller routes up to 63 request sources across 8 channels via DMAMUX.
Power management includes six operational modes (Run, Wait, Stop, VLPR, VLPW, VLPS) with clock gating per peripheral; AWIC enables wake-up from Stop/VLPS using LPUART, LPSPI, CMP, or RTC - all functional with SIRC or OSC32 clocks. The SCG provides five clock sources including ±1% FIRC and ±3% SIRC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, up to 72 MHz - delivers deterministic real-time response for motor control loops without floating-point unit overhead. |
| Memory | 256 KB flash / 32 KB SRAM / 32 KB FlexNVM + 2 KB FlexRAM - enables firmware updates with EEPROM emulation and bootloader storage in ROM. |
| ADC | Dual 12-bit SAR, 1 Msps max, 16+11 channel inputs - supports simultaneous sampling for current/voltage sensing in 3-phase BLDC commutation. |
| Timers | 3× FlexTimer (FTM) with dead-time insertion, 1× LPIT (4-channel), 1× PDB - provides hardware-synchronized PWM outputs and precise trigger sequencing for gate drivers. |
| Interfaces | 3× LPUART, 2× LPSPI, 2× LPI2C, FlexIO - enables robust sensor/actuator communication with DMA support and operation down to VLPS mode. |
| Supply & Temp | 2.7–5.5 V operation, –40 to 105 °C ambient - suitable for industrial motor drives and automotive under-hood applications. |
| Security | Flash Access Control (FAC), CRC generator, 128-bit UID, WDOG/EWM - enforces firmware integrity and prevents unauthorized debug access post-security lock. |
Pinout & Package
64-pin LQFP (VLH7), 10 mm × 10 mm × 1.4 mm, 0.5 mm pitch - compatible with standard PCB assembly processes and thermal relief design for industrial motor control boards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power pins with decoupling requirements per datasheet Section 6.1.2 - critical for ADC noise floor and FTM timing stability. |
| PTA0–PTA31, PTB0–PTB15, etc. | GPIO with multiplexed functions | 58 total GPIOs (INT/HD: 58/8) - supports PWM output, ADC input, UART TX/RX, and comparator inputs; high-drive pins drive LEDs or logic-level MOSFET gates directly. |
| ADC0_SE0–ADC0_SE15, ADC1_SE0–ADC1_SE10 | Analog input channels | 16-channel + 11-channel configuration - maps to motor phase currents, DC bus voltage, and temperature sensors without external muxing. |
| FTM0_CH0–FTM0_CH7, FTM1_CH0–FTM1_CH3, FTM2_CH0–FTM2_CH3 | PWM output terminals | Hardware-dead-time insertion on FTM0/FTM1 - eliminates shoot-through risk in half-bridge gate driver circuits without software intervention. |
| LPUART0_TX/LPUART0_RX, LPUART1_TX/LPUART1_RX, LPUART2_TX/LPUART2_RX | Asynchronous serial I/O | Three independent LPUARTs with DMA - enable host diagnostics, parameter tuning, and field firmware updates while MCU remains in low-power sleep. |
Key Features
| Feature | Design Value |
|---|---|
| FlexTimer dead-time insertion | Hardware-enforced delay between complementary PWM outputs - ensures safe switching in inverter half-bridges without CPU cycle overhead. |
| ADC self-calibration | On-chip calibration routine corrects gain/offset drift - maintains <±1 LSB INL over temperature and voltage variation in closed-loop motor control. |
| AWIC wake-up capability | Asynchronous wake-up from VLPS/Stop using LPUART, LPSPI, or CMP - reduces system idle current to sub-10 µA while retaining responsive sensor monitoring. |
| FlexNVM data flash | 32 KB emulated data flash with wear leveling - stores motor calibration tables, fault logs, and runtime parameters with 100k write cycles endurance. |
| Low-power clock options | FIRC (±1%), SIRC (±3%), OSC32, LPO - enables accurate RTC timekeeping and periodic wake-up at <1 µA quiescent current. |
Applications
| BLDC Motor Drive | Industrial Sensor Hub |
|---|---|
Use Scenario: 3-phase brushless DC motor control in HVAC blowers and pump systems requiring precise commutation timing and current feedback. IC Role / Device Role / Timing Role: Primary motor controller executing FOC or trapezoidal commutation, generating synchronized PWM with dead-time, and sampling dual ADC channels at 100 kHz. Use Value: Integrated FTM dead-time and 1 Msps ADC eliminate external timing ICs and reduce BOM count by 3 components versus discrete timer + ADC solutions. |
Use Scenario: Multi-sensor data aggregation node in factory automation, collecting temperature, pressure, and vibration signals for edge preprocessing. IC Role / Device Role / Timing Role: Central sensor interface MCU managing LPI2C slaves, triggering ADC conversions via LPIT, and buffering data in SRAM before LPUART transmission. Use Value: Three LPUARTs allow concurrent connection to PLC, HMI, and cloud gateway - enabling protocol translation without external bridge ICs. |
| Smart Power Outlet | Automotive Body Controller |
Use Scenario: Energy-monitoring smart outlet with load detection, overcurrent protection, and Wi-Fi co-processor interface. IC Role / Device Role / Timing Role: System manager handling zero-cross detection (via CMP), RMS current calculation (via ADC + MMDVSQ), and secure firmware updates via LPSPI. Use Value: Built-in CRC generator and FAC enforce secure OTA update integrity - prevents malicious code injection during field upgrades. |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN bus interface and ESD-hardened I/O. IC Role / Device Role / Timing Role: Low-voltage body controller operating from 9–16 V battery, using SIRC for clocking during cold-crank, and waking via pin interrupt on door handle press. Use Value: –40 to 105 °C rating and POR/LVD circuitry ensure reliable startup and brown-out recovery in automotive environments without external supervisors. |
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 (25-channel touch sensing); identical core, memory, and peripheral set otherwise. | Required for capacitive touch HMI integration (e.g., control panels); unnecessary if only motor control/sensing is needed. | Select MKE14Z256VLH7 when TSI is unused - saves cost and avoids unused analog resources consuming layout area. |
| S32K116LHT0MLF | ARM Cortex-M0+, 112 MHz max, 128 KB flash, CAN FD interface, AEC-Q100 Grade 2 rated. | Targeted for automotive powertrain/body modules requiring CAN FD and extended temperature compliance. | Choose S32K116LHT0MLF only if CAN FD or AEC-Q100 qualification is mandatory; MKE14Z256VLH7 lacks CAN but offers higher flash and more ADC channels. |
Compared with MKE15Z256VLH7, the MKE14Z256VLH7 removes TSI to reduce cost and die size while retaining full motor control capability; versus S32K116LHT0MLF, it trades CAN FD and automotive qualification for greater analog integration and flash capacity at lower unit price.
Availability
MKE14Z256VLH7 is available at Aetrix Electronics and suitable for BLDC motor drives, industrial sensor hubs, and smart power outlets requiring stable component supply across multi-year production cycles.
Supply support for MKE14Z256VLH7 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, with over 40 years of microcontroller innovation.
The Kinetis KE1xZ family - including the MKE14Z256VLH7 - was designed specifically for cost-sensitive, high-reliability motor control and industrial sensing applications demanding integrated analog, low-power operation, and robust EMC performance.
FAQ
What is the maximum operating frequency of the MKE14Z256VLH7?
The MKE14Z256VLH7 operates at up to 72 MHz using the FIRC (±1%) or external oscillator. This frequency is supported across its full voltage range (2.7–5.5 V) and temperature range (–40 to 105 °C), enabling deterministic real-time execution for motor control algorithms without overclocking risk.
Does the MKE14Z256VLH7 include touch sensing capability?
No, the MKE14Z256VLH7 does not include the Touch Sensing Input (TSI) module. Unlike the MKE15Z256VLH7 variant, this part is optimized for non-touch applications such as motor control and sensor interfacing - confirmed in Table 1 of the datasheet where TSI is marked "No" for all MKE14Z variants.
How many ADC channels does the MKE14Z256VLH7 support?
The MKE14Z256VLH7 supports 16 single-ended inputs on ADC0 and 11 on ADC1, totaling 27 analog input channels. This configuration is explicitly listed in the Ordering Information table for MKE14Z256VLH7 and enables simultaneous sampling of multiple motor phases, bus voltage, and temperature sensors without external multiplexing.
What low-power modes are available on the MKE14Z256VLH7?
The MKE14Z256VLH7 supports six low-power modes: Run (RUN/VLPR), Wait (Wait/VLPW), and Deep Sleep (Stop/VLPS). In VLPS mode, peripherals including LPUART, LPSPI, CMP, and RTC remain active with SIRC or OSC32 clocks - enabling wake-up from sub-10 µA quiescent current while maintaining sensor responsiveness.
Is the MKE14Z256VLH7 pin-compatible with other KE1xZ variants?
Yes, the MKE14Z256VLH7 shares the same 64-pin LQFP (VLH7) package and pinout with MKE15Z256VLH7 and MKE14Z128VLH7. Pin assignments for power, reset, debug, ADC, FTM, and communication interfaces are identical across these variants - allowing direct substitution in existing PCB layouts when flash or RAM requirements change.
MKE14Z256VLH7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis KE1xZ
- Packaging:
- Tray
- 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:
MKE14Z256VLH7 FAQ
1.How can I place an order for MKE14Z256VLH7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKE14Z256VLH7 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 MKE14Z256VLH7 reliable?
The price and inventory of MKE14Z256VLH7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKE14Z256VLH7 is usually 5 days.
3.What payment methods are accepted for MKE14Z256VLH7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKE14Z256VLH7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKE14Z256VLH7?
MKE14Z256VLH7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKE14Z256VLH7 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 MKE14Z256VLH7?
For technical support, including MKE14Z256VLH7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKE14Z256VLH7 requirements.
6.How does Aetrix verify that MKE14Z256VLH7 is sourced from the original manufacturer or authorized distributors?
All MKE14Z256VLH7 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 MKE14Z256VLH7 meets industry standards.
7.What is the process for return or replacement of MKE14Z256VLH7?
All MKE14Z256VLH7 units undergo pre-shipment inspection (PSI). If there is an issue with MKE14Z256VLH7, 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 MKE14Z256VLH7 part is unused and in its original packaging.
Return procedure for MKE14Z256VLH7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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