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NXP Semiconductors MKL15Z32VFT4
- Part No.:
- MKL15Z32VFT4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MKL15Z32VFT4.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,814
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Product details
Overview
MKL15Z32VFT4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 48-pin QFN package, featuring 32 KB flash, 4 KB SRAM, 16-bit SAR ADC, 12-bit DAC, and ultra-low-power operation down to 0.31 µA in VLLS0 mode. It targets battery-powered industrial sensors and portable HMI devices requiring fast wake-up (<4.4 µs from VLPS) and robust analog integration.
For engineers reviewing the MKL15Z32VFT4 datasheet, MKL15Z32VFT4 pinout, MKL15Z32VFT4 application, or MKL15Z32VFT4 equivalent, key selection criteria include its 48-pin QFN footprint, 1.71–3.6 V supply range, -40 to 105°C operating temperature, integrated TSI touch interface, and dual UART + I²C + SPI connectivity for compact embedded control.
Technical Context
The MKL15Z32VFT4 implements an ARM Cortex-M0+ core with Bit Manipulation Engine and Micro Trace Buffer, paired with a multi-mode clock system including internal 4 MHz IRC, 32 kHz LPO, and external crystal support up to 16 MHz. Its power architecture enables nine low-power modes-including VLLS0 (0.31 µA), VLLS1 (0.58 µA), and VLPS (3.75 µA)-with full state retention and sub-5 µs wake-up latency.
Peripherals include two 8-bit SPI modules, two UARTs (one low-power), one I²C module, six-channel TPM timer, 16-bit ADC with 16-channel input multiplexing, 12-bit DAC, analog comparator with 6-bit DAC reference, and TSI-based capacitive touch sensing. All are accessible via 40 GPIO pins with configurable pull-ups/pull-downs (20–50 kΩ) and programmable drive strength.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 32-bit performance at ultra-low active power (3.9 mA typical @ 48 MHz) |
| Memory | 32 KB flash / 4 KB SRAM - sufficient for real-time sensor fusion and communication stacks without external memory |
| ADC | 16-bit SAR, 16-channel - supports high-resolution analog monitoring (e.g., precision temperature or pressure sensing) |
| DAC | 12-bit, rail-to-rail output - enables closed-loop analog control (e.g., bias voltage generation or actuator drive) |
| Low-Power Modes | VLLS0: 0.31 µA @ 25°C - retains full register state and RAM while drawing sub-microwatt current for long-term sleep |
| GPIO | 40 pins, 5 V-tolerant inputs - simplifies interface with legacy logic and industrial sensors without level shifters |
| Package | 48-pin QFN (7 × 7 × 1 mm, 0.5 mm pitch) - compact surface-mount footprint suitable for space-constrained PCB layouts |
Pinout & Package
48-pin QFN package (7 × 7 × 1 mm, 0.5 mm pitch), moisture sensitivity level 3, lead-free reflow compatible (260°C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply | Primary 1.71–3.6 V power input; decoupling required per datasheet layout guidelines |
| VDDA | Analog supply | Separate analog domain supply; must be within ±0.1 V of VDD to ensure ADC/DAC accuracy |
| PTA0–PTA31, PTB0–PTB15, PTC0–PTC7 | GPIO / peripheral multiplexing | 40 total usable I/O pins; each configurable as UART/I²C/SPI/TPM/TSI with software-selectable pull-up/down |
| RESET_b | Active-low reset input | Asynchronous reset with internal pull-down; accepts 1.71–3.6 V logic levels |
| XTAL/EXTAL | Crystal oscillator terminals | Supports 32 kHz–16 MHz crystals; enables precise timing for RTC, UART baud generation, and low-jitter PWM |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power run mode | 47 µA/MHz @ 48 MHz - reduces battery drain in always-on edge nodes without sacrificing compute throughput |
| Fast wake-up from VLPS | 4.4 µs max - enables rapid response to external interrupts (e.g., motion detection or button press) |
| Integrated TSI | Hardware-accelerated capacitive touch sensing on up to 16 electrodes - eliminates need for external touch controller IC |
| Low-leakage wakeup unit | Supports selective pin wake-up from VLLS modes - allows deep sleep while maintaining responsiveness to specific I/O events |
| SWD debug interface | 2-pin serial wire debug with Micro Trace Buffer - enables real-time instruction trace and low-overhead firmware debugging |
Applications
| Industrial Sensor Node | Portable Medical Device |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry and local display. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, data processing, and UART-to-Bluetooth bridge logic. Use Value: 0.31 µA VLLS0 current extends 10-year battery life; integrated 16-bit ADC ensures ±0.1°C measurement resolution. |
Use Scenario: Handheld pulse oximeter with OLED display and touch interface. IC Role / Device Role / Timing Role: Real-time signal processor for photoplethysmography (PPG) sampling and TSI-driven UI navigation. Use Value: 4.4 µs VLPS wake-up enables immediate response to finger placement; 12-bit DAC drives LED current control with <1% linearity error. |
| Smart Building Controller | Asset Tracking Tag |
Use Scenario: Wireless HVAC zone controller with occupancy sensing and relay actuation. IC Role / Device Role / Timing Role: Central MCU managing I²C sensor bus, PWM fan control, and low-power UART communication to gateway. Use Value: Dual UART + I²C + SPI permits concurrent sensor polling and RF module control; 40 GPIOs support direct relay/LED driver interfacing. |
Use Scenario: GPS-enabled logistics tag with motion-triggered location reporting. IC Role / Device Role / Timing Role: Low-power coordinator waking only on accelerometer interrupt to initiate GPS fix and BLE transmission. Use Value: VLLS1 mode (0.58 µA) sustains multi-month standby; hardware wakeup unit eliminates continuous polling overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL25Z32VLH4 | 64-pin LQFP, 48 MHz Cortex-M0+, 32 KB flash, 8 KB SRAM, includes USB OTG controller | Requires larger PCB area; adds USB host/device capability but lacks TSI touch interface | Select when USB connectivity is mandatory and board space allows 10×10 mm footprint |
| STM32L053R8T6 | 64-pin LQFP, 32 MHz Cortex-M0+, 64 KB flash, 8 KB SRAM, ultra-low-power stop mode (0.3 µA) | Higher flash density and lower stop current, but no integrated TSI or 16-bit ADC | Prefer for cost-sensitive designs needing extended code storage and minimal sleep current, without touch or high-res analog |
Compared with MKL15Z32VFT4, MKL25Z32VLH4 offers USB but requires more board space and lacks TSI, while STM32L053R8T6 provides higher flash and lower stop current but omits both TSI and 16-bit ADC-making MKL15Z32VFT4 optimal for compact, touch-enabled sensor nodes demanding high analog fidelity.
Availability
MKL15Z32VFT4 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical devices, smart building controllers, and asset tracking tags requiring stable component supply across extended product lifecycles.
Supply support for MKL15Z32VFT4 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 applications, with deep expertise in low-power microcontrollers and edge intelligence.
The Kinetis KL15 family was designed specifically for ultra-low-power embedded control in space-constrained, battery-operated systems-emphasizing rapid wake-up, integrated analog peripherals, and energy-efficient signal processing.
FAQ
What is the maximum operating frequency of the MKL15Z32VFT4 core?
The MKL15Z32VFT4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achievable using the internal PLL with an external crystal or the internal 4 MHz IRC in PEE mode. At 48 MHz, the device delivers industry-leading throughput per milliwatt, validated by CoreMark benchmark results in the official datasheet.
Does the MKL15Z32VFT4 support hardware touch sensing?
Yes, the MKL15Z32VFT4 integrates a dedicated Touch Sensing Interface (TSI) module capable of capacitive touch sensing on up to 16 electrodes. It operates independently of the CPU, enabling low-power touch detection during VLPS or VLLS modes without waking the core-critical for battery-powered HMI applications.
What are the lowest power consumption modes supported by the MKL15Z32VFT4?
The MKL15Z32VFT4 supports nine low-power modes, with VLLS0 delivering the lowest current draw: 0.31 µA at 25°C with full register and RAM retention. VLLS1 (0.58 µA) and VLPS (3.75 µA) provide progressively higher functionality while maintaining sub-microamp operation-ideal for long-duration sleep in sensor endpoints.
Can the MKL15Z32VFT4 operate across the full industrial temperature range?
Yes, the MKL15Z32VFT4 is specified for ambient temperatures from -40°C to +105°C. This rating is validated across all electrical parameters-including flash programming, ADC accuracy, and low-power mode currents-ensuring reliable operation in harsh environments like factory automation or outdoor infrastructure.
How many communication interfaces does the MKL15Z32VFT4 include?
The MKL15Z32VFT4 includes two UART modules (one designated low-power), two I²C modules, and two 8-bit SPI modules. These interfaces are fully multiplexed across GPIO pins and support simultaneous operation-enabling concurrent sensor data acquisition (I²C), wireless module control (UART), and display update (SPI) in resource-constrained designs.
MKL15Z32VFT4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-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:
- 40
- 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 15x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL15Z32VFT4 FAQ
1.How can I place an order for MKL15Z32VFT4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL15Z32VFT4 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 MKL15Z32VFT4 reliable?
The price and inventory of MKL15Z32VFT4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL15Z32VFT4 is usually 5 days.
3.What payment methods are accepted for MKL15Z32VFT4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL15Z32VFT4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL15Z32VFT4?
MKL15Z32VFT4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL15Z32VFT4 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 MKL15Z32VFT4?
For technical support, including MKL15Z32VFT4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL15Z32VFT4 requirements.
6.How does Aetrix verify that MKL15Z32VFT4 is sourced from the original manufacturer or authorized distributors?
All MKL15Z32VFT4 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 MKL15Z32VFT4 meets industry standards.
7.What is the process for return or replacement of MKL15Z32VFT4?
All MKL15Z32VFT4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL15Z32VFT4, 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 MKL15Z32VFT4 part is unused and in its original packaging.
Return procedure for MKL15Z32VFT4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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