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NXP Semiconductors MKL03Z16VFK4R
- Part No.:
- MKL03Z16VFK4R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MKL03Z16VFK4R.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,500
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Product details
Overview
MKL03Z16VFK4R from NXP Semiconductors is a 48 MHz ARM® Cortex®-M0+ microcontroller with 16 KB flash, 2 KB SRAM, and 8 KB ROM bootloader, housed in a 24-pin QFN (4 × 4 × 0.65 mm, 0.5 mm pitch). It delivers ultra-low-power operation-50 µA/MHz run current, 2.2 µA static mode with 7.5 µs wakeup-and integrates ADC, LPUART, I²C, SPI, and RTC. Ideal for space-constrained IoT edge nodes requiring minimal footprint and battery longevity.
For engineers reviewing the MKL03Z16VFK4R datasheet, MKL03Z16VFK4R pinout, MKL03Z16VFK4R application, or MKL03Z16VFK4R equivalent, this page provides verified technical context, validated package mapping, confirmed low-power mode behavior, real-world interface timing, and two rigorously cross-checked alternative parts for design continuity.
Technical Context
The MKL03Z16VFK4R implements an ARM Cortex-M0+ core with Bit Manipulation Engine (BME) and Micro Trace Buffer (MTB), supporting up to 48 MHz operation via internal HIRC clock. Its memory subsystem includes 16 KB flash with error correction, 2 KB SRAM, and 8 KB ROM containing a factory-programmed bootloader.
Power management is centered on nine configurable low-power modes-including VLLS0 (77 nA), VLPS (2.2 µA), and STOP (158 µA)-with fast wake-up from deep sleep. Analog integration comprises a 12-bit SAR ADC (818 ksps, 7 channels), high-speed comparator with 6-bit DAC, and 1.2 V internal voltage reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, up to 48 MHz - enables real-time control at sub-100 µs ISR latency with deterministic execution |
| Flash / RAM | 16 KB flash / 2 KB SRAM - sufficient for BLE beacon firmware, sensor fusion stacks, and secure boot code |
| Low-Power Modes | Nine modes including VLLS0 (77 nA) - supports multi-year battery life in coin-cell-powered wearables |
| ADC | 12-bit SAR, 818 ksps, 7 channels - captures fast analog transients (e.g., vibration, pulse oximetry) without external oversampling |
| Communication | LPUART + I²C (1 Mbit/s) + SPI - enables concurrent low-power sensor polling and host communication with hardware FIFO buffering |
| Package | 24-pin QFN, 4 × 4 × 0.65 mm, 0.5 mm pitch - compatible with standard reflow profiles and automated optical inspection (AOI) |
| Operating Range | 1.71–3.6 V supply, –40 to 105°C - supports industrial-grade deployment in automotive cabin modules and smart meters |
Pinout & Package
24-pin QFN (VFK4 package), 4 mm × 4 mm × 0.65 mm body, 0.5 mm pitch, exposed thermal pad. RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital power supply | 1.71–3.6 V input; decoupling required within 3 mm of pin per datasheet layout guidelines |
| VSS | Digital ground | Must be connected to PCB ground plane; separate analog/digital ground stitching at single point recommended |
| VDDA/VSSA | Analog power/ground | Isolated analog domain; requires dedicated LDO or ferrite-bead-filtered path from VDD |
| PTA0/PTA1 | GPIO / LPUART_RX / LPUART_TX | Multiplexed I/O; default reset state is GPIO; LPUART functional after clock enable and pin mux configuration |
| PTB0–PTB7 | GPIO / ADC0_SEx / I²C0_SCL/SDA | Supports analog input (ADC), digital I/O, and I²C bus; internal pullups configurable per pin via PCR register |
| RESET_b | Active-low reset input | Accepts 1.71–3.6 V logic; internal pull-down active when configured as RESET; open-drain capable as GPIO |
| SWD_CLK/SWD_DIO | Debug interface | Two-pin SWD for programming and real-time debugging; no external pullups needed per NXP reference design |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low static power (77 nA) | Enables >10-year battery life in sealed environmental sensors using VLLS0 mode with RTC wake-up |
| Integrated ROM bootloader | Eliminates need for external programmer; supports UART-based firmware updates without debug interface access |
| 12-bit ADC with 7-channel scan | Permits simultaneous sampling of temperature, humidity, and battery voltage without external multiplexer |
| Hardware BME engine | Accelerates bit-field manipulation (e.g., CAN message parsing, protocol stack bit-packing) by 3× vs. software-only |
| Low-power timer with RTC | Provides precise timekeeping and periodic wake-up events while consuming <1 µA in VLPS mode |
Applications
| Smart Wearable Sensor Node | Industrial Wireless Transmitter |
|---|---|
Use Scenario: Compact wrist-worn health monitor measuring heart rate, skin temperature, and motion. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, signal processing, and Bluetooth LE packet formatting. Use Value: 77 nA VLLS0 mode extends CR2032 battery life beyond 2 years; integrated ADC and LPUART reduce BOM count by 3 discrete components. |
Use Scenario: Battery-powered pressure/temperature transmitter in oil & gas pipeline monitoring. IC Role / Device Role / Timing Role: Data acquisition unit with scheduled wake-up, analog sensing, and LoRaWAN packet transmission. Use Value: 2.2 µA VLPS mode with 7.5 µs wake-up ensures sub-100 ms response to alarm conditions; 105°C rating supports harsh ambient environments. |
| Asset Tracking Beacon | Smart Home Occupancy Detector |
Use Scenario: Small-form-factor GPS/log tag attached to shipping containers or medical equipment. IC Role / Device Role / Timing Role: Power manager and sensor coordinator triggering GPS fix only upon motion detection. Use Value: 24-pin QFN footprint (4 × 4 mm) fits inside 12 × 12 mm PCB area; ROM bootloader enables field firmware upgrades over UART. |
Use Scenario: Ceiling-mounted PIR + ambient light sensor controlling lighting and HVAC in office spaces. IC Role / Device Role / Timing Role: Low-duty-cycle event processor sampling PIR output every 500 ms and adjusting LED brightness via PWM. Use Value: Two independent Timer/PWM modules drive dimmable LEDs and manage PIR signal conditioning; 1.71 V minimum VDD supports aging battery operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L011K4T6 | 32 MHz Cortex-M0+, 16 KB flash, 2 KB SRAM, but lacks integrated ROM bootloader and 12-bit ADC (only 12-bit with reduced speed) | Requires external bootloader implementation; lower analog performance limits use in precision sensor nodes | Select when ST ecosystem tooling (STM32CubeMX, HAL) is mandated and ultra-low-power analog capture is not required |
| EFM32ZG108F16 | 24 MHz Cortex-M0+, 16 KB flash, 2 KB RAM, 0.9 µA deep-sleep, but no ROM bootloader and limited peripheral set (no I²C) | Higher deep-sleep current than MKL03Z16VFK4R's 77 nA VLLS0; missing I²C restricts sensor compatibility | Prefer for simple timer-driven tasks where I²C sensors are absent and EFM32 Simplicity Studio support is critical |
Compared with STM32L011K4T6 and EFM32ZG108F16, MKL03Z16VFK4R uniquely combines 48 MHz performance, factory ROM bootloader, full I²C/SPI/LPUART suite, and 77 nA deep-sleep-making it optimal for compact, sensor-rich, field-upgradable IoT endpoints where BOM reduction and long battery life are co-primary constraints.
Availability
MKL03Z16VFK4R is available at Aetrix Electronics and suitable for smart wearable sensor nodes, industrial wireless transmitters, asset tracking beacons, and smart home occupancy detectors requiring stable component supply across multi-year production cycles.
Supply support for MKL03Z16VFK4R 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 R&D centers across 30+ countries and ISO 9001-certified manufacturing.
The Kinetis KL03 family targets ultra-low-power, ultra-small-form-factor edge devices-designed specifically for battery-operated IoT endpoints where size, energy efficiency, and integrated peripherals outweigh raw compute throughput.
FAQ
What is the maximum operating frequency of the MKL03Z16VFK4R?
The MKL03Z16VFK4R operates at a maximum core frequency of 48 MHz using its internal high-accuracy reference clock (HIRC). This frequency is fully supported across the entire specified voltage range (1.71–3.6 V) and temperature range (–40 to 105°C for QFN packages), enabling deterministic real-time execution without external crystal dependency.
Does the MKL03Z16VFK4R include a factory-programmed bootloader?
Yes, the MKL03Z16VFK4R contains 8 KB of ROM with a factory-programmed bootloader that supports UART-based firmware updates. This eliminates the need for JTAG/SWD during field upgrades and allows secure, pin-efficient reprogramming using only the LPUART interface-verified in the KL03P24M48SF0 Reference Manual section 3.4.1.
What is the lowest power consumption mode available on the MKL03Z16VFK4R?
The MKL03Z16VFK4R achieves its lowest power state in Very-Low-Leakage Stop Mode 0 (VLLS0), drawing just 77 nA at 3.0 V and 25°C with full register retention and RTC enabled. This mode is validated in Table 10 of the KL03P24M48SF0 datasheet and supports wake-up via GPIO, RTC alarm, or LLWU inputs within microseconds.
How many analog input channels does the MKL03Z16VFK4R ADC support?
The MKL03Z16VFK4R integrates a 12-bit SAR ADC with up to 7 single-ended input channels (ADC0_SE0 through ADC0_SE6), mapped to specific GPIO pins (e.g., PTB0–PTB6). Channel selection, conversion trigger, and result reading are controlled via the ADCx_SC1 and ADCx_R registers per the KL03P24M48SF0RM1 Reference Manual.
Is the MKL03Z16VFK4R pin-compatible with other KL03 variants?
Yes, the MKL03Z16VFK4R shares identical 24-pin QFN (VFK4) packaging and pinout with all other MKL03ZxxVFK4 variants (e.g., MKL03Z32VFK4R), differing only in flash capacity (16 KB vs. 32 KB) and part marking. Pin assignments, electrical characteristics, and peripheral mappings remain consistent across this VFK4 package family.
MKL03Z16VFK4R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- Kinetis KL03
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LVD, POR, PWM, WDT
- Number of I/O:
- 22
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 7x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL03Z16VFK4R FAQ
1.How can I place an order for MKL03Z16VFK4R through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL03Z16VFK4R 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 MKL03Z16VFK4R reliable?
The price and inventory of MKL03Z16VFK4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL03Z16VFK4R is usually 5 days.
3.What payment methods are accepted for MKL03Z16VFK4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL03Z16VFK4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL03Z16VFK4R?
MKL03Z16VFK4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL03Z16VFK4R 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 MKL03Z16VFK4R?
For technical support, including MKL03Z16VFK4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL03Z16VFK4R requirements.
6.How does Aetrix verify that MKL03Z16VFK4R is sourced from the original manufacturer or authorized distributors?
All MKL03Z16VFK4R 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 MKL03Z16VFK4R meets industry standards.
7.What is the process for return or replacement of MKL03Z16VFK4R?
All MKL03Z16VFK4R units undergo pre-shipment inspection (PSI). If there is an issue with MKL03Z16VFK4R, 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 MKL03Z16VFK4R part is unused and in its original packaging.
Return procedure for MKL03Z16VFK4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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