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NXP Semiconductors MKE14F256VLL16
- Part No.:
- MKE14F256VLL16
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MKE14F256VLL16.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:450
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Product details
Overview
MKE14F256VLL16 from NXP Semiconductors is a 168 MHz ARM® Cortex®-M4 microcontroller with 256 KB flash, 32 KB SRAM, and ECC protection on both memory types-designed for industrial motor control, power conversion, and real-time embedded systems requiring deterministic timing and functional safety support.
For engineers reviewing the MKE14F256VLL16 datasheet, MKE14F256VLL16 pinout, MKE14F256VLL16 application, or MKE14F256VLL16 equivalent, key selection criteria include its 100-pin LQFP package, integrated FPU/DSP, FlexCAN-free configuration, low-power peripheral operation in Stop/VLPS modes, and hardware-based memory integrity (ECC + FAC).
Technical Context
The MKE14F256VLL16 implements an ARMv7-M architecture with Thumb®-2 ISA, single-precision FPU, and DSP extensions-including SIMD multiply-accumulate and saturating arithmetic-enabling efficient signal processing in motor control loops. Its SCG clock system supports up to 168 MHz core frequency via PLL with multiple internal/external sources (FIRC, SIRC, OSC, OSC32, LPO).
Memory subsystem includes 256 KB program flash with 4 KB page size and ECC, 32 KB SRAM with ECC, 64 KB FlexNVM with EEPROM emulation, and 8 KB I/D cache. Power management uses PMC with seven operational modes (HSRun, Run, VLPR, Wait, VLPW, Stop, VLPS), and AWIC enables wake-up from Stop/VLPS using ADC, CMP, LPUART, LPSPI, LPI2C, LPIT, RTC, or GPIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4 @ up to 168 MHz with FPU and DSP extensions for real-time control math |
| Flash / SRAM | 256 KB flash + 32 KB SRAM, both with ECC for ASIL-B–capable memory integrity |
| FlexNVM / FlexRAM | 64 KB FlexNVM with EEPROM emulation + 4 KB FlexRAM for nonvolatile data storage |
| Analog Peripherals | 3× 12-bit ADC (up to 16 ch/module, 1 MSPS), 1× 12-bit DAC, 3× analog comparators with 8-bit DAC |
| Timers & PWM | 4× FlexTimer (FTM) modules with deadtime insertion and fault inputs; 1× LPTMR, 1× LPIT (4 ch), 3× PDB |
| Communication | 3× LPUART, 2× LPSPI, 2× LPI2C-all operational in Stop/VLPS modes; no FlexCAN interface |
| Package | 100-pin LQFP (VLL), 14 × 14 × 1.4 mm, 0.5 mm pitch, 89 GPIOs (8 high-drive) |
Pinout & Package
Package: 100-pin LQFP (VLL), 14 mm × 14 mm × 1.4 mm, 0.5 mm pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power supply / ground | Separate analog domain for ADC/DAC/CMP reference stability; requires dedicated filtering |
| PTA0–PTA31, PTB0–PTB16, PTC0–PTC16, PTD0–PTD15, PTE0–PTE15 | GPIO banks A–E | 89 total GPIOs; all support interrupt; 8 pins support 20 mA high-drive for direct LED/relay control |
| ADC0_SE0–ADC0_SE15, ADC1_SE0–ADC1_SE15, ADC2_SE0–ADC2_SE15 | Analog input channels | Up to 16 single-ended inputs per ADC module; shared with GPIO pins; configurable via port mux |
| FTM0_CH0–FTM3_CH7 | PWM output / capture input | 32 total FTM channels across 4 modules; support complementary PWM with deadtime for 3-phase inverter drives |
| LPUART0_TX / LPUART0_RX | Low-power UART interface | Operates in Stop/VLPS mode using SIRC or OSC32 clock; enables remote diagnostics without waking core |
| LPSPI0_PCS0–LPSPI0_SCK | Low-power SPI signals | Full-duplex SPI with DMA support; retains functionality in Stop mode for sensor polling during sleep |
| LPI2C0_SCL / LPI2C0_SDA | Low-power I²C interface | Supports standard/fast-mode plus timeout detection; operates in Stop/VLPS using SIRC/OSC32 |
| RTC_CLKIN / RTC_IRQ | Real-time clock input / interrupt | Accepts 32.768 kHz crystal; generates wake-up events or alarms while core is stopped |
Key Features
| Feature | Design Value |
|---|---|
| ECC on Flash & SRAM | Single-bit error correction + multi-bit error detection ensures runtime memory reliability for safety-critical firmware execution |
| AWIC Wake-up Controller | Enables deterministic wake-up from Stop/VLPS using analog peripherals (ADC/CMP), timers (LPIT/LPTMR), or communication interfaces (LPUART/LPSPI) |
| FlexTimer Deadtime Insertion | Hardware-controlled deadtime prevents shoot-through in half/full-bridge gate drivers without CPU intervention |
| Boot ROM with UART/I²C/SPI Loader | Enables field firmware updates without external programmer; supports secure boot via flash security bits |
| System Clock Generator (SCG) | Configurable clock tree with PLL, FIRC (±1%), SIRC (±3%), OSC32, and LPO sources-supports failover and dynamic frequency scaling |
| Flash Access Control (FAC) | Programmable 32-region flash protection allows secure partitioning of bootloader, application, and customer library code |
Applications
| Industrial Motor Drive | Smart Power Supply |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC/PMSM motors in HVAC blowers or industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using FPU/DSP, synchronized PWM generation via FTM with deadtime, and current sensing via 3× ADCs. Use Value: Deterministic 168 MHz execution enables sub-1 µs current loop update; ECC memory ensures firmware integrity under EMI stress. |
Use Scenario: Digital control of isolated DC-DC converters with adaptive voltage regulation and fault logging. IC Role / Device Role / Timing Role: High-resolution voltage/current monitoring (12-bit ADC + hardware averaging), precise PWM timing (FTM), and nonvolatile parameter storage (FlexNVM). Use Value: 256 KB flash accommodates dual-bank firmware for safe over-the-air updates; Stop-mode LPUART enables remote diagnostics without full system wake-up. |
| Factory Automation I/O Module | Energy Metering Gateway |
Use Scenario: DIN-rail mounted digital I/O expansion with isolation, status reporting, and local logic execution. IC Role / Device Role / Timing Role: GPIO management (89 pins, 8 high-drive), time-stamped event capture (LPIT + AWIC), and serial protocol bridging (LPUART ↔ LPI2C). Use Value: 8 high-drive pins directly drive 24 V solenoids or indicators; VLPS mode draws <10 µA while retaining RTC and GPIO wake capability. |
Use Scenario: Substation-level energy aggregation with pulse counting, tariff scheduling, and secure data upload. IC Role / Device Role / Timing Role: Pulse input capture (FTM edge detection), RTC-based time-of-use metering, and encrypted data transmission (via LPUART + software crypto). Use Value: 32 KB SRAM with ECC stores 30+ days of interval data; boot ROM enables field recovery if flash becomes corrupted. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKE14F256VLH16 | Same core/peripherals but 64-pin LQFP (VLH); 58 GPIOs, no ADC channel 2, reduced pin multiplexing | Suitable for space-constrained designs where fewer analog I/O and smaller footprint are prioritized | Select when board area is critical and 89 GPIOs or full 3× ADC capability are unnecessary |
| MKE16F256VLL16 | Identical package and memory, but adds 1× FlexCAN 2.0B module; same clock/peripheral specs otherwise | Required for CAN-based industrial networks (e.g., J1939, CANopen) where MKE14F256VLL16 lacks bus interface | Choose when CAN connectivity is mandatory; otherwise MKE14F256VLL16 offers lower cost and identical performance for non-CAN use cases |
Compared with MKE14F256VLH16, the MKE14F256VLL16 provides 31 additional GPIOs and full ADC channel count in the same LQFP family-ideal for complex I/O mapping. Against MKE16F256VLL16, it trades FlexCAN for marginally lower BOM cost and identical real-time control capability where CAN is not required.
Availability
MKE14F256VLL16 is available at Aetrix Electronics and suitable for industrial motor control, smart power supplies, and factory automation I/O modules requiring stable component supply, long-term lifecycle support, and automotive-grade temperature range (–40 to 105 °C).
Supply support for MKE14F256VLL16 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 safety-certified platforms.
The Kinetis KE1xF family-including MKE14F256VLL16-is engineered for real-time industrial control, emphasizing functional safety (ECC, MPU, WDOG), low-power operation (Stop/VLPS), and robust analog integration (3× ADC, DAC, CMP) in cost-sensitive applications.
FAQ
What is the maximum operating frequency of the MKE14F256VLL16?
The MKE14F256VLL16 supports a maximum core clock frequency of 168 MHz via its integrated PLL, delivering 1.25 Dhrystone MIPS per MHz. This frequency is achievable with proper decoupling, thermal management, and supply voltage (2.7–5.5 V). The device also supports lower-frequency operation using FIRC (48 MHz), SIRC (8/2 MHz), or OSC32 (32.768 kHz) for ultra-low-power modes.
Does the MKE14F256VLL16 include FlexCAN interface support?
No, the MKE14F256VLL16 does not include FlexCAN modules. It is part of the KE14F subfamily, which omits CAN controllers to reduce cost and silicon area. For CAN-enabled variants in the same package and memory configuration, consider the MKE16F256VLL16 (1× FlexCAN) or MKE18F256VLL16 (2× FlexCAN). All share identical core, memory, and peripheral specifications except CAN presence.
How does ECC implementation work on the MKE14F256VLL16 flash and SRAM?
The MKE14F256VLL16 implements hardware-based ECC on both 256 KB flash and 32 KB SRAM, detecting and correcting single-bit errors automatically and flagging multi-bit errors via interrupt. ECC is enabled at reset and cannot be disabled. This feature meets IEC 61508 SIL-2 requirements for memory integrity in safety-critical applications, eliminating need for software checksum overhead.
What low-power modes are supported by the MKE14F256VLL16, and which peripherals remain active in Stop mode?
The MKE14F256VLL16 supports seven power modes via its PMC: HSRUN, RUN, VLPR, WAIT, VLPW, STOP, and VLPS. In STOP mode, ADC, DAC, CMP, LPTMR, RTC, and GPIO interrupts remain active and can wake the core via AWIC. LPUART, LPSPI, and LPI2C retain functionality when clocked from SIRC or OSC32-enabling communication without full system wake-up.
Is the MKE14F256VLL16 pin-compatible with other KE1xF devices in the 100-pin LQFP package?
Yes, the MKE14F256VLL16 shares identical pinout and electrical characteristics with other 100-pin LQFP KE1xF variants (e.g., MKE14F512VLL16, MKE16F256VLL16, MKE18F512VLL16), enabling drop-in replacement for memory or peripheral upgrades. Pin assignments for power, reset, clocks, debug, and primary peripherals (GPIO, ADC, FTM, UART, SPI, I²C) are fully consistent across the VLL package family.
MKE14F256VLL16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- Kinetis KE1xF
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 168MHz
- 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:
- 68K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKE14F256VLL16 FAQ
1.How can I place an order for MKE14F256VLL16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKE14F256VLL16 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 MKE14F256VLL16 reliable?
The price and inventory of MKE14F256VLL16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKE14F256VLL16 is usually 5 days.
3.What payment methods are accepted for MKE14F256VLL16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKE14F256VLL16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKE14F256VLL16?
MKE14F256VLL16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKE14F256VLL16 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 MKE14F256VLL16?
For technical support, including MKE14F256VLL16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKE14F256VLL16 requirements.
6.How does Aetrix verify that MKE14F256VLL16 is sourced from the original manufacturer or authorized distributors?
All MKE14F256VLL16 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 MKE14F256VLL16 meets industry standards.
7.What is the process for return or replacement of MKE14F256VLL16?
All MKE14F256VLL16 units undergo pre-shipment inspection (PSI). If there is an issue with MKE14F256VLL16, 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 MKE14F256VLL16 part is unused and in its original packaging.
Return procedure for MKE14F256VLL16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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