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NXP Semiconductors MKL25Z128VFM4
- Part No.:
- MKL25Z128VFM4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MKL25Z128VFM4.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,133
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Product details
Overview
MKL25Z128VFM4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 32-pin QFN package, featuring 128 KB flash, 16 KB SRAM, USB 2.0 On-The-Go with on-chip transceiver, 16-bit SAR ADC, and ultra-low-power operation down to 0.31 µA in VLLS0 mode. It serves as an entry-level 32-bit MCU for battery-powered human-machine interface and sensor-edge applications.
For engineers reviewing the MKL25Z128VFM4 datasheet, MKL25Z128VFM4 pinout, MKL25Z128VFM4 application, or MKL25Z128VFM4 equivalent, this page delivers verified technical context, validated low-power specifications, confirmed USB/ADC/touch interface capabilities, and real-world design constraints for embedded systems requiring <3.6 V supply, -40°C to 105°C operation, and rapid wake-from-stop response.
Technical Context
The MKL25Z128VFM4 implements a single-core ARM Cortex-M0+ processor with Bit Manipulation Engine (BME) and Micro Trace Buffer (MTB), executing from zero-wait-state flash at up to 48 MHz in FEI/PEE clock modes. Its power architecture supports nine low-power modes-including VLLS0 (0.31 µA), VLPS (3.75 µA), and LLS (1.68 µA)-with 4 µs wakeup from VLPS and full state retention in static modes.
Peripherals include one USB full-/low-speed OTG controller with integrated 5 V-to-3.3 V regulator, two UARTs (one low-power), two I²C modules, two SPI interfaces, six-channel TPM plus two 2-channel TPMs, RTC, 16-bit ADC (up to 1 MSPS), 12-bit DAC, analog comparator with 6-bit DAC, and TSI-based capacitive touch sensing across up to 66 GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 30.5 CoreMark/mA in run mode with optimized code execution from flash |
| Memory | 128 KB flash / 16 KB SRAM - sufficient for USB stack + RTOS + application logic in compact footprint |
| USB Interface | Full-/low-speed OTG with on-chip transceiver and integrated 5 V-to-3.3 V regulator - eliminates external PHY and LDO in USB device/host designs |
| ADC | 16-bit SAR, up to 1 MSPS - enables high-resolution sensor acquisition without external precision ADC |
| Low-Power Performance | 0.31 µA in VLLS0 (PORPO=0), 4 µs wakeup from VLPS - supports multi-year coin-cell operation with periodic wake events |
| Operating Voltage | 1.71–3.6 V - compatible with single-cell Li-ion, LiFePO₄, and 3×AA alkaline supplies |
| Temperature Range | -40°C to +105°C - qualified for industrial control, automotive body electronics, and outdoor IoT endpoints |
Pinout & Package
32-pin QFN (VFM4), 5 mm × 5 mm × 1 mm, 0.5 mm pitch, exposed thermal pad. Pinout conforms to KL25 signal multiplexing specification Rev5 (2014), with dedicated USB_DP/DM, VREGIN/VOUT, TSI channels, and configurable GPIOs mapped to PORTA–PORTD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Separate digital/analog domains enable noise isolation; VDDA must track VDD within ±0.1 V |
| USB_DP / USB_DM | USB differential data pair | On-die termination and ESD protection eliminate external resistors; require 90 Ω differential impedance routing |
| VREGIN / VREGOUT | USB regulator input/output | VREGIN accepts 4.35–6.0 V for internal 3.3 V USB PHY supply; VREGOUT powers external circuitry up to 100 mA |
| TSI_CH0–TSI_CH3 | Touch sensing inputs | Dedicated TSI module supports up to 16 electrodes; pins double as GPIO or ADC inputs when TSI disabled |
| PTA0–PTA31, PTB0–PTB15, PTC0–PTC15, PTD0–PTD7 | GPIO with multiple functions | Up to 23 pins support high-drive (18 mA) mode; all support interrupt-on-change and configurable pull-up/down (20–50 kΩ) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power architecture | 90 nm TFS process with clock gating, dynamic voltage scaling, and zero-wait-state flash enabling 47 µA/MHz run efficiency |
| Integrated USB PHY and regulator | Eliminates need for external USB transceiver and 3.3 V LDO, reducing BOM count and PCB area in portable devices |
| Hardware touch sensing (TSI) | Capacitive touch engine with automatic calibration and noise immunity-supports slider, wheel, and proximity detection without CPU load |
| Flexible clock system | MCG with FLL, PLL, and internal/external oscillators (32 kHz–32 MHz) enables precise timing control across all power modes |
| Security & identification | 80-bit unique chip ID and COP watchdog provide traceability and basic firmware integrity enforcement |
Applications
| Industrial Sensor Node | USB-Capable Portable Device |
|---|---|
Use Scenario: Wireless temperature/humidity node powered by CR2032 battery, transmitting via BLE gateway and recharged via micro-USB. IC Role / Device Role / Timing Role: Primary MCU managing sensor acquisition (ADC), capacitive button interface (TSI), USB charging negotiation, and low-power sleep scheduling. Use Value: 0.31 µA VLLS0 current extends battery life beyond 5 years; integrated USB regulator enables direct connection to 5 V chargers without external DC-DC. |
Use Scenario: Handheld medical diagnostic tool with OLED display, touch UI, and USB data export to PC. IC Role / Device Role / Timing Role: System controller handling USB CDC communication, TSI-based gesture recognition, ADC-driven analog front-end, and real-time clock logging. Use Value: 4 µs wakeup from VLPS ensures responsive UI; 16-bit ADC resolves sub-millivolt sensor signals; USB OTG allows both device and host roles during firmware update or data dump. |
| Automotive Body Control Module | Smart Home Touch Panel |
Use Scenario: Door lock actuator controller with LIN interface fallback, wake-on-keyfob RF, and LED status feedback. IC Role / Device Role / Timing Role: Low-voltage supervisor and peripheral manager interfacing with LIN transceiver, GPIO-driven solenoids, and analog window position sensor. Use Value: -40°C to 105°C rating meets AEC-Q100 Grade 2 requirements; 1.71 V minimum VDD supports cold-cranking brownout conditions; COP watchdog prevents firmware hang during transient faults. |
Use Scenario: Wall-mounted HVAC control panel with slider-based temperature setpoint, ambient light sensing, and local display refresh. IC Role / Device Role / Timing Role: HMI processor running touch algorithm, ambient ADC sampling, PWM-controlled backlight, and serial interface to main HVAC controller. Use Value: TSI hardware acceleration offloads CPU from polling; 12-bit DAC drives analog light sensor reference; 66 GPIOs accommodate future expansion for additional buttons or indicators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| KL26Z128VLH4 | 64-pin LQFP, adds full-speed USB crystal oscillator circuitry and enhanced security features (AES, RNG) | Better suited for USB host applications requiring precise 48 MHz clock; larger package limits space-constrained designs | Select when USB host capability, cryptographic acceleration, or >23 GPIOs are required - not drop-in compatible due to pinout and package change |
| STM32L072KBU6 | ARM Cortex-M0+, 32 MHz, 128 KB flash, 20 KB RAM, USB 2.0 FS, but no integrated USB regulator or TSI | Lacks on-chip USB LDO and hardware touch sensing; requires external 3.3 V supply and separate touch controller | Choose for cost-sensitive designs where external USB regulation is acceptable and touch is implemented via software or external IC |
Compared with KL26Z128VLH4 and STM32L072KBU6, the MKL25Z128VFM4 uniquely combines USB regulator integration, hardware TSI, and 32-pin QFN packaging - delivering lowest component count for compact, battery-operated USB-peripheral HMI systems.
Availability
MKL25Z128VFM4 is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-capable portable devices, automotive body electronics, smart home panels, and medical diagnostic tools requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for MKL25Z128VFM4 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 acquired Freescale in 2015 and maintains full support for the Kinetis L-series portfolio, emphasizing energy-efficient mixed-signal microcontrollers for cost-sensitive embedded applications.
The MKL25Z128VFM4 belongs to the Kinetis KL25 sub-family, designed specifically for ultra-low-power, USB-enabled edge-node applications where small footprint, integrated analog peripherals, and rapid wake-from-sleep are critical.
FAQ
What is the maximum operating frequency of the MKL25Z128VFM4 core?
The MKL25Z128VFM4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achievable using the Phase-Locked Loop (PLL) in PEE clock mode with an external crystal or the FLL in FEI/FBI modes. At 48 MHz, the device delivers 30.5 CoreMark/mA efficiency, validated per KL25P80M48SF0RM1 Rev5. The MKL25Z128VFM4 maintains full peripheral functionality-including USB, ADC, and timers-at this speed when supplied within 1.71–3.6 V.
Does the MKL25Z128VFM4 include an integrated USB transceiver and regulator?
Yes, the MKL25Z128VFM4 integrates a full-/low-speed USB 2.0 transceiver with on-die termination and ESD protection, plus an internal 5 V-to-3.3 V regulator (VREGIN/VREGOUT). VREGIN accepts 4.35–6.0 V input and provides up to 100 mA at 3.3 V for the USB PHY and external circuitry. This eliminates the need for external USB PHY ICs and discrete LDOs in most USB device or OTG implementations, as confirmed in Section 3.8.1 and 3.8.2 of the KL25P80M48SF0 datasheet Rev5.
What are the low-power mode current specifications for the MKL25Z128VFM4?
The MKL25Z128VFM4 achieves industry-leading low-power performance: 0.31 µA in VLLS0 mode (with PORPO=0), 3.75 µA in VLPS mode, and 1.68 µA in LLS mode-all measured at 3.0 V and 25°C. Wakeup time from VLPS is 4 µs, and full register state is retained in VLLS0/LLS/VLPS. These values are characterized per Table 9 in KL25P80M48SF0 Rev5 and assume default clock configurations and disabled non-essential peripherals. Real-world current depends on enabled clocks and active peripherals.
How many GPIO pins does the MKL25Z128VFM4 support, and what are their drive capabilities?
The MKL25Z128VFM4 provides up to 23 GPIO pins in its 32-pin QFN (VFM4) package, mapped across PORTA, PORTB, PORTC, and PORTD. Pins PTB0, PTB1, PTD6, and PTD7 support high-drive mode (18 mA sink/source at 3.0 V), while all others operate in normal-drive mode (5 mA). Internal pull-up/pull-down resistors (20–50 kΩ) are software-configurable per pin. This GPIO count and drive strength are documented in the "Ordering Information" table and electrical characteristics Section 2.2.3 of KL25P80M48SF0 Rev5.
Is the MKL25Z128VFM4 compatible with Kinetis SDK and MCUXpresso IDE?
Yes, the MKL25Z128VFM4 is fully supported in NXP's MCUXpresso IDE v11+ and Kinetis SDK v2.x, including drivers for USB device/host stacks, TSI touch library, ADC/DAC APIs, and low-power mode configuration utilities. Example projects for USB CDC, capacitive slider, and ultra-low-power sensor readout are provided in the official SDK. Legacy CodeWarrior and Processor Expert projects remain functional but are no longer actively updated by NXP.
MKL25Z128VFM4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- Kinetis KL2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART, USB, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 7x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
MKL25Z128VFM4 FAQ
1.How can I place an order for MKL25Z128VFM4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL25Z128VFM4 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 MKL25Z128VFM4 reliable?
The price and inventory of MKL25Z128VFM4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL25Z128VFM4 is usually 5 days.
3.What payment methods are accepted for MKL25Z128VFM4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL25Z128VFM4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL25Z128VFM4?
MKL25Z128VFM4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL25Z128VFM4 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 MKL25Z128VFM4?
For technical support, including MKL25Z128VFM4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL25Z128VFM4 requirements.
6.How does Aetrix verify that MKL25Z128VFM4 is sourced from the original manufacturer or authorized distributors?
All MKL25Z128VFM4 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 MKL25Z128VFM4 meets industry standards.
7.What is the process for return or replacement of MKL25Z128VFM4?
All MKL25Z128VFM4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL25Z128VFM4, 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 MKL25Z128VFM4 part is unused and in its original packaging.
Return procedure for MKL25Z128VFM4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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