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NXP Semiconductors MKE14Z256VLL7
- Part No.:
- MKE14Z256VLL7
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MKE14Z256VLL7.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:450
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Product details
Overview
MKE14Z256VLL7 from NXP Semiconductors is a 72 MHz ARM® Cortex®-M0+ microcontroller with 256 KB flash, 32 KB SRAM, and 32 KB FlexNVM for EEPROM emulation, designed for industrial motor control and HMI systems requiring robust analog integration and low-power operation across –40 to 105 °C.
For engineers reviewing the MKE14Z256VLL7 datasheet, MKE14Z256VLL7 pinout, MKE14Z256VLL7 application, or MKE14Z256VLL7 equivalent, key selection criteria include its dual 12-bit 1 Msps ADCs, three FlexTimer modules supporting BLDC PWM generation, TSI absence (distinguishing it from KE15Z variants), LQFP-100 package with 89 GPIOs, and support for VLPS/Stop modes with wake-up via LPUART, CMP, or RTC.
Technical Context
The MKE14Z256VLL7 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 system clock generator (SCG) selects among FIRC (±1%), SIRC (±3%), OSC, OSC32, and LPFLL, enabling precise timing control across power modes.
Analog subsystem includes two independent 12-bit SAR ADCs (16+12 channels total), two comparators each with integrated 8-bit DAC, and no TSI module - confirmed by ordering table differentiation from MKE15Z256VLL7. Power management supports RUN/VLPR/WAIT/VLPW/STOP/VLPS modes with AWIC-enabled wake-up from STOP/VLPS using LPUART, LPSPI, LPI2C, LPIT, or RTC.
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 M4/M7 overhead. |
| Memory | 256 KB flash / 32 KB SRAM / 32 KB FlexNVM - enables field-upgradable firmware and robust data logging with EEPROM emulation. |
| ADC | 2× 12-bit SAR, 1 Msps, 16+12 channels - supports simultaneous sampling of motor phase currents and DC bus voltage in BLDC drives. |
| Timers | 3× FlexTimer (FTM), 1× LPIT (4 ch), 1× PDB, 1× LPTMR - provides hardware dead-time insertion, synchronized PWM, and precise timing for sensorless commutation. |
| Interfaces | 3× LPUART, 2× LPSPI, 2× LPI2C, FlexIO - ensures reliable low-power communication with sensors, displays, and host controllers in battery-operated systems. |
| Power Range | 2.7–5.5 V, –40 to 105 °C - suitable for industrial environments with wide supply tolerance and extended temperature operation. |
| Package | 100-pin LQFP (14×14 mm, 0.5 mm pitch) - provides high I/O count (89 GPIOs) with standard PCB assembly compatibility. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power pins enable clean separation for noise-sensitive ADC/CMP operation. |
| PTA0–PTA31, PTB0–PTB17, PTC0–PTC17, PTD0–PTD15, PTE0–PTE23 | GPIO bank terminals | 89 total GPIOs with interrupt capability; port E supports high-drive outputs for direct LED/display driving. |
| ADC0_SE0–ADC0_SE15, ADC1_SE0–ADC1_SE11 | Analog input channels | 28 total single-ended inputs across two ADC modules - sufficient for 3-phase motor current sensing + temperature + auxiliary signals. |
| FTM0_CH0–FTM0_CH7, FTM1_CH0–FTM1_CH3, FTM2_CH0–FTM2_CH3 | PWM output channels | 16 total FTM channels - supports 6-channel complementary PWM with dead-time for 3-phase inverter gate drivers. |
| LPUART0_RX/TX, LPUART1_RX/TX, LPUART2_RX/TX | Low-power UART I/O | Three independent UARTs allow concurrent debug, sensor telemetry, and host command interface without waking full system. |
Key Features
| Feature | Design Value |
|---|---|
| FlexTimer with dead-time insertion | Hardware-enforced dead-time prevents shoot-through in half-bridge/motor driver stages without CPU intervention. |
| Self-calibrating 12-bit ADC | Eliminates factory calibration requirement and compensates for temperature drift in long-life industrial deployments. |
| VLPS mode with LPUART wake-up | Enables <1.5 µA sleep current while retaining UART receive capability - ideal for remote sensor nodes with infrequent polling. |
| FlexNVM with EEPROM emulation | 32 KB data flash + 2 KB FlexRAM allows wear-leveling and atomic write operations for parameter storage without external EEPROM. |
| Boot ROM with UART/I2C/SPI loader | Enables field firmware updates over standard interfaces without JTAG debugger - reduces BOM and service complexity. |
Applications
| Industrial BLDC Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed/torque control of 3-phase brushless DC motors in HVAC blowers or pump drives. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM generation with hardware dead-time, and ADC sampling of phase currents at 10 kHz. Use Value: Dual 1 Msps ADCs capture simultaneous current samples; three FTM modules generate synchronized 6-channel PWM; VLPS mode enables rapid wake-on-command for responsive start/stop. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and pressure data with wireless upload. IC Role / Device Role / Timing Role: Low-power system orchestrator managing sensor acquisition, local processing, and LPUART transmission bursts. Use Value: 2.7–5.5 V operation extends battery life; VLPS mode draws <1.5 µA while monitoring UART for wake; FlexNVM stores calibration coefficients with EEPROM-like reliability. |
| Programmable Logic Controller I/O Module | Industrial HMI Panel (Non-Touch) |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU communication. IC Role / Device Role / Timing Role: Deterministic I/O scanning engine interfacing with optocouplers, relays, and RS-485 transceivers. Use Value: 89 GPIOs support 32+ discrete I/O points; LPUART/LPSPI handle Modbus and peripheral comms; CRC module validates configuration integrity during power cycles. |
Use Scenario: Operator interface panel with LED indicators, pushbuttons, and character LCD display in factory machinery. IC Role / Device Role / Timing Role: Dedicated HMI controller managing button debouncing, LED sequencing, and serial LCD updates. Use Value: High-drive GPIOs drive LEDs directly; multiple LPI2C ports interface with display and touch-free input ICs; boot ROM enables firmware recovery via serial port if corrupted. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKE15Z256VLL7 | Includes TSI module; identical flash/RAM/peripherals otherwise. | Required for capacitive touch HMI; unnecessary if only mechanical buttons/LEDs used. | Select MKE14Z256VLL7 when TSI is not needed - reduces cost and eliminates TSI calibration effort. |
| KL17Z256VLH7 | Lower max frequency (48 MHz); 64-pin LQFP; no FlexNVM; single ADC (16 ch). | Suitable for simpler control tasks with fewer analog inputs and lower performance demands. | Choose KL17Z256VLH7 only for cost-sensitive, low-complexity designs where 72 MHz and dual ADC are unnecessary. |
Compared with MKE15Z256VLL7, MKE14Z256VLL7 removes TSI to reduce cost and software overhead while retaining identical motor control peripherals; compared with KL17Z256VLH7, it delivers higher performance, more memory, and enhanced analog integration at the expense of larger footprint and higher power in active modes.
Availability
MKE14Z256VLL7 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and automotive-grade temperature range support.
Supply support for MKE14Z256VLL7 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 deep expertise in ARM-based microcontrollers and mixed-signal integration.
The Kinetis KE1xZ family targets cost-sensitive industrial control applications, emphasizing robust analog peripherals, low-power operation, and motor control acceleration - positioning MKE14Z256VLL7 as a scalable solution for BLDC, stepper, and sensor-fused edge devices.
FAQ
What is the maximum operating frequency of the MKE14Z256VLL7?
The MKE14Z256VLL7 operates at up to 72 MHz using the Fast Internal Reference Clock (FIRC) or external oscillator. This frequency is fully supported across all operating modes including RUN and VLPR, enabling deterministic execution of time-critical motor control algorithms without throttling.
Does the MKE14Z256VLL7 include a touch sensing interface (TSI)?
No, the MKE14Z256VLL7 does not include a TSI module. This is explicitly confirmed in the ordering information table, which lists "No" under the TSI column for MKE14Z256VLL7 - distinguishing it from the MKE15Z256VLL7 variant that includes TSI.
What memory resources are available on the MKE14Z256VLL7?
The MKE14Z256VLL7 integrates 256 KB of program flash, 32 KB of SRAM, 32 KB of FlexNVM for data flash and EEPROM emulation, and 2 KB of FlexRAM. These resources support complex firmware with field-upgrade capability and persistent parameter storage without external memory.
Which low-power modes support wake-up via LPUART on the MKE14Z256VLL7?
LPUART wake-up is supported in both STOP and VLPS modes on the MKE14Z256VLL7. The Asynchronous Wake-up Interrupt Controller (AWIC) enables this functionality using SIRC or OSC clock sources, allowing the device to remain in sub-2 µA sleep while monitoring for serial commands.
How many ADC channels does the MKE14Z256VLL7 support, and what is their resolution?
The MKE14Z256VLL7 features two independent 12-bit SAR ADC modules: ADC0 supports up to 16 single-ended inputs, and ADC1 supports up to 12 - totaling 28 channels. Both operate at up to 1 Msps with hardware self-calibration and flexible trigger sources including FTM and LPTMR.
MKE14Z256VLL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-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:
- 89
- 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:
MKE14Z256VLL7 FAQ
1.How can I place an order for MKE14Z256VLL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKE14Z256VLL7 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 MKE14Z256VLL7 reliable?
The price and inventory of MKE14Z256VLL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKE14Z256VLL7 is usually 5 days.
3.What payment methods are accepted for MKE14Z256VLL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKE14Z256VLL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKE14Z256VLL7?
MKE14Z256VLL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKE14Z256VLL7 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 MKE14Z256VLL7?
For technical support, including MKE14Z256VLL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKE14Z256VLL7 requirements.
6.How does Aetrix verify that MKE14Z256VLL7 is sourced from the original manufacturer or authorized distributors?
All MKE14Z256VLL7 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 MKE14Z256VLL7 meets industry standards.
7.What is the process for return or replacement of MKE14Z256VLL7?
All MKE14Z256VLL7 units undergo pre-shipment inspection (PSI). If there is an issue with MKE14Z256VLL7, 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 MKE14Z256VLL7 part is unused and in its original packaging.
Return procedure for MKE14Z256VLL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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