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NXP Semiconductors MKL15Z32VFM4
- Part No.:
- MKL15Z32VFM4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MKL15Z32VFM4.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,183
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Product details
Overview
MKL15Z32VFM4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 32-pin QFN package, featuring 32 KB flash, 4 KB SRAM, and 28 GPIOs. It delivers ultra-low-power operation down to 0.31 µA in VLLS0 mode with full state retention, 4 µs wakeup, and integrated 16-bit SAR ADC, 12-bit DAC, and TSI for touch sensing - deployed in battery-powered industrial sensors and portable medical devices.
For engineers reviewing the MKL15Z32VFM4 datasheet, MKL15Z32VFM4 pinout, MKL15Z32VFM4 application, or MKL15Z32VFM4 equivalent, key selection criteria include its 48 MHz Cortex-M0+ core, 32-pin QFN (5×5 mm, 0.5 mm pitch), -40°C to 105°C operating range, 1.71–3.6 V supply, and support for nine low-power modes including VLLS0/VLLS1/VLLS3.
Technical Context
The MKL15Z32VFM4 implements a single-core ARM Cortex-M0+ processor with Thumb-2 instruction set, executing from on-chip flash with zero-wait-state controller and optional cache. Its clock system integrates MCG with multiple modes (FEI, FBE, BLPI, BLPE) supporting internal 4/32 kHz IRC and external 32 kHz–32 MHz crystals.
System-level peripherals include a 4-channel DMA controller, SWD debug interface with Micro Trace Buffer, Bit Manipulation Engine, COP watchdog, and low-leakage wakeup unit. Analog subsystem comprises one 16-bit SAR ADC (up to 1 MSPS), one 12-bit DAC, and one analog comparator with integrated 6-bit DAC and programmable reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, up to 48 MHz - enables real-time control with deterministic interrupt latency and efficient code density for embedded firmware. |
| Flash / RAM | 32 KB flash / 4 KB SRAM - sufficient for compact RTOS-based sensor node firmware with retained configuration data across power cycles. |
| Supply Range | 1.71–3.6 V - supports direct Li-ion/Li-Po battery operation (3.0–3.7 V) and coin-cell backup (1.8–3.0 V) without external regulators. |
| Low-Power Modes | Nine modes including VLLS0 (0.31 µA typ @25°C) - allows multi-year battery life in wake-on-event applications like wireless occupancy sensors. |
| ADC / DAC | 16-bit SAR ADC (1 MSPS) + 12-bit DAC - provides high-resolution analog signal acquisition and precision waveform generation for closed-loop control. |
| Package | 32-pin QFN, 5×5×1 mm, 0.5 mm pitch - surface-mount compatible with automated assembly and suitable for space-constrained IoT edge nodes. |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive modules, industrial PLC I/O, and outdoor environmental monitors. |
| I²C / UART / SPI | Two I²C, two UART, two SPI modules - enables concurrent communication with multiple sensors (e.g., temperature, humidity, IMU) and host MCU or radio transceivers. |
Pinout & Package
32-pin QFN (VFM4 suffix), 5 mm × 5 mm body, 0.5 mm pitch, exposed thermal pad. Pinout conforms to KL15 family standard assignment per Document KL15P80M48SF0 Rev 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Digital power / ground | Primary supply pins; require local 100 nF ceramic decoupling per VDD pin for stable core and peripheral operation. |
| VDDA / VSSA | Analog power / ground | Isolated analog domain supply; must be filtered separately to maintain ADC/DAC accuracy and noise immunity. |
| PTA0–PTA7, PTB0–PTB7, PTC0–PTC7, PTD0–PTD7 | GPIO / peripheral multiplexed | 28 total usable I/Os; each configurable as digital input/output, ADC channel, UART TX/RX, I²C SDA/SCL, or TSI electrode. |
| XTAL / EXTAL | Crystal oscillator terminals | Support 32 kHz watch crystal or 4–32 MHz main crystal; enable precise timing for RTC, UART baud generation, and low-jitter PWM. |
| SWD_DIO / SWD_CLK | Debug interface signals | Enable non-intrusive programming and real-time debugging via ARM Serial Wire Debug; no dedicated reset pin required for SWD reset. |
| RESET_b | Active-low reset input | Asynchronous reset pin with internal pull-down; accepts external pushbutton or supervisor IC assertion to force cold boot or recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power VLLS0 mode | 0.31 µA typical current draw at 25°C with full register retention and RAM content preserved - extends shelf life and operational duration in energy-harvesting systems. |
| Integrated touch sensing (TSI) | Hardware-accelerated capacitive touch interface supporting up to 16 electrodes - eliminates need for external touch controller in HMI designs like medical handhelds. |
| Bit Manipulation Engine (BME) | Atomic bit-set/clear/modify instructions reduce firmware size and improve ISR efficiency - critical for time-critical control loops in motor drives and power converters. |
| Multi-mode clock generator (MCG) | Configurable between FEI/FBI/FBE/BLPI/BLPE modes - enables seamless transition between high-speed run and sub-µA stop states without external clock sources. |
| 16-bit ADC with hardware averaging | Up to 16-sample hardware oversampling and averaging - improves effective resolution to >17 bits for precision thermistor or strain gauge measurements. |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Wireless temperature/humidity sensor deployed in HVAC ducts with 10-year battery life requirement. IC Role / Device Role / Timing Role: Primary controller managing sensor acquisition, low-power scheduling, BLE/Wi-Fi coexistence, and secure OTA updates. Use Value: VLLS0 mode (0.31 µA) and 4 µs wakeup enable rapid response to environmental triggers while minimizing average current to <1 µA. | Use Scenario: Handheld pulse oximeter with capacitive touch UI and analog front-end for photodiode signal conditioning. IC Role / Device Role / Timing Role: System-on-chip integrating TSI for button-free navigation, 16-bit ADC for analog signal digitization, and UART for clinical data export. Use Value: Integrated 12-bit DAC generates precise LED drive waveforms; 1.71–3.6 V supply supports single-cell Li-ion operation without buck-boost regulation. |
| Automotive Body Control Module | Smart Home Occupancy Detector |
Use Scenario: Under-dash module controlling interior lighting, door locks, and window lift with CAN gateway functionality. IC Role / Device Role / Timing Role: Local ECU executing real-time PWM dimming, LIN bus communication, and wake-on-keypress via GPIO interrupts. Use Value: -40°C to +105°C rating ensures reliability in engine bay proximity; nine low-power modes meet OEM sleep current targets (<10 µA). | Use Scenario: Ceiling-mounted PIR + ultrasonic occupancy sensor with adaptive sensitivity and wireless reporting. IC Role / Device Role / Timing Role: Dual-sensor fusion processor performing motion detection, ambient light compensation, and scheduled BLE beacon transmission. Use Value: Hardware TSI and low-leakage wakeup unit allow immediate wake from VLLS1 (0.58 µA) upon IR event - eliminating polling overhead and extending battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL25Z32VFM4 | Same 32-pin QFN package, but adds USB OTG controller and increases flash to 32 KB with enhanced security features (AES-128, RNG). | Better suited for USB-connected diagnostic tools or firmware-upgradable field devices requiring cryptographic services. | Select MKL25Z32VFM4 when USB device capability or hardware crypto acceleration is mandatory; MKL15Z32VFM4 remains optimal for cost-sensitive, non-USB sensor endpoints. |
| STM32L051K6U6 | 32-pin QFN, 32 KB flash, 8 KB RAM, ARM Cortex-M0+, but operates up to 32 MHz and uses different low-power architecture (Stop mode: 0.33 µA). | Preferred where higher RAM headroom is needed for lightweight protocol stacks (e.g., BLE Mesh), or where ST's ecosystem toolchain is standardized. | Choose STM32L051K6U6 if leveraging ST's CubeMX and HAL libraries; MKL15Z32VFM4 offers superior 48 MHz performance and integrated TSI for touch-centric designs. |
Compared with MKL25Z32VFM4 and STM32L051K6U6, MKL15Z32VFM4 provides the highest core frequency (48 MHz) in its footprint, lowest VLLS0 current (0.31 µA), and native hardware touch sensing - making it the most efficient choice for high-throughput, ultra-low-power, touch-enabled edge nodes.
Availability
MKL15Z32VFM4 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, and automotive body control modules requiring stable component supply and long-term lifecycle assurance.
Supply support for MKL15Z32VFM4 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in low-power microcontrollers and edge AI processing.
The Kinetis KL15 family was designed as an entry-level 32-bit MCU platform delivering market-leading ultra-low-power efficiency for battery-operated and energy-harvesting applications - emphasizing fast wakeup, minimal leakage, and integrated analog peripherals.
FAQ
What is the maximum operating frequency of the MKL15Z32VFM4 core?
The MKL15Z32VFM4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This maximum frequency is achievable when powered within the specified 1.71–3.6 V supply range and using the MCG in PEE mode with an external crystal or internal PLL. At 48 MHz, the device delivers industry-leading throughput for its class while maintaining ultra-low-power characteristics - confirmed in the KL15P80M48SF0 datasheet Section 2.3.1.
Does the MKL15Z32VFM4 support hardware touch sensing?
Yes, the MKL15Z32VFM4 includes a dedicated Low-Power Hardware Touch Sensor Interface (TSI) module capable of driving up to 16 capacitive touch electrodes. This peripheral operates independently in low-power modes (including VLLS1) and supports automatic scanning, noise filtering, and baseline tracking - eliminating the need for external touch controllers in applications like medical handhelds or smart home controls.
What are the low-power mode current specifications for MKL15Z32VFM4?
The MKL15Z32VFM4 achieves 0.31 µA typical current in Very-Low-Leakage Stop Mode 0 (VLLS0) at 25°C with full state retention and 4 µs wakeup. Other key low-power values include 1.68 µA in LLS mode and 319 µA in STOP mode (25°C). All values are measured at 3.0 V supply and documented in Table 9 of the KL15P80M48SF0 datasheet Rev 5.
Which development tools are officially supported for MKL15Z32VFM4 firmware development?
NXP officially supports MKL15Z32VFM4 development using Kinetis Design Studio (KDS), MCUXpresso IDE, and IAR Embedded Workbench. Hardware debug is enabled via SWD interface using LPC-Link2 or Segger J-Link probes. Reference designs include the FRDM-KL25Z (software-compatible) and TWR-KL15Z48M development platforms - all validated with the MKL15Z32VFM4's memory map and peripheral register layout.
What is the ADC resolution and sampling rate capability of MKL15Z32VFM4?
The MKL15Z32VFM4 integrates a 16-bit Successive Approximation Register (SAR) ADC with up to 1 MSPS maximum sample rate. It supports hardware averaging across up to 16 samples to enhance effective resolution, programmable conversion triggers (software, timer, or peripheral), and flexible input multiplexing across 16 channels - enabling high-fidelity sensor signal acquisition in applications such as precision environmental monitoring.
MKL15Z32VFM4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- Kinetis KL1
- 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, TSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 28
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 9x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
MKL15Z32VFM4 FAQ
1.How can I place an order for MKL15Z32VFM4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL15Z32VFM4 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 MKL15Z32VFM4 reliable?
The price and inventory of MKL15Z32VFM4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL15Z32VFM4 is usually 5 days.
3.What payment methods are accepted for MKL15Z32VFM4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL15Z32VFM4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL15Z32VFM4?
MKL15Z32VFM4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL15Z32VFM4 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 MKL15Z32VFM4?
For technical support, including MKL15Z32VFM4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL15Z32VFM4 requirements.
6.How does Aetrix verify that MKL15Z32VFM4 is sourced from the original manufacturer or authorized distributors?
All MKL15Z32VFM4 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 MKL15Z32VFM4 meets industry standards.
7.What is the process for return or replacement of MKL15Z32VFM4?
All MKL15Z32VFM4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL15Z32VFM4, 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 MKL15Z32VFM4 part is unused and in its original packaging.
Return procedure for MKL15Z32VFM4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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