NXP Semiconductors MKL04Z16VLC4R
- Part No.:
- MKL04Z16VLC4R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
MKL04Z16VLC4R.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MKL04Z16VLC4R from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M0+ microcontroller in 32-pin LQFP package, delivering up to 48 MHz operation with 16 KB Flash and 2 KB SRAM. It features ultra-low-power run mode (213–284 µA at 3.0 V), 28 GPIOs, 12-bit SAR ADC, I²C, SPI, UART, and six-channel TPM - deployed in battery-powered sensor nodes and portable medical devices.
For engineers reviewing the MKL04Z16VLC4R datasheet, MKL04Z16VLC4R pinout, MKL04Z16VLC4R application, or MKL04Z16VLC4R equivalent, key selection criteria include its 48 MHz Cortex-M0+ core, -40°C to +105°C industrial temperature range, 1.71–3.6 V supply, nine low-power modes, and verified compatibility with Kinetis KL04 development tools and MCUXpresso SDK.
Technical Context
The MKL04Z16VLC4R implements an ARM Cortex-M0+ core with Bit Manipulation Engine and Micro Trace Buffer for debug visibility. Its clock system integrates MCG with FLL, internal 4 MHz/32 kHz IRC, and external crystal support (32 kHz–32 MHz), enabling dynamic switching between high-performance and ultra-low-power modes.
Power management includes nine configurable low-power states (VLPR, VLPS, LLS, VLLS0–3), with sub-µA retention in VLLS0 (0.30–0.54 µA at 25°C) and 4 µs wakeup from VLPS. Peripheral integration covers 12-bit ADC with programmable reference, analog comparator with integrated 6-bit DAC, and SWD debug interface with hardware breakpoints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 32-bit performance with <1.5 µA/MHz efficiency in VLPR mode |
| Memory | 16 KB Flash / 2 KB SRAM - sufficient for BLE peripheral firmware, sensor fusion, and bootloader storage |
| Supply Range | 1.71–3.6 V - supports single-cell Li-ion, coin cell, or regulated 3.3 V rails without external LDO |
| GPIO Count | 28 pins - enables direct connection to multiple sensors, LEDs, buttons, and I²C/SPI peripherals |
| ADC | 12-bit SAR with internal reference - provides 1.2 mV LSB resolution for precision analog sensing |
| Low-Power Modes | Nine modes including VLLS0 (0.30 µA @25°C) - extends battery life in always-on wearable applications |
| Temperature Range | -40°C to +105°C - qualified for industrial control panels and automotive cabin modules |
| Debug Interface | SWD with Micro Trace Buffer - enables real-time instruction trace and low-overhead runtime analysis |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Must be decoupled with 100 nF ceramic capacitor per VDD pin; VSS forms analog/digital reference return path |
| VDDA, VSSA | Analog power and ground | Separate analog domain; requires dedicated low-noise filtering for ADC/CMP accuracy |
| PTA0–PTA13, PTB0–PTB15 | General-purpose I/O | 28 total GPIOs; multiplexed with UART0, I²C0, SPI0, TPM0/1, ADC0, CMP0, LPTMR, RTC - configured via PORTx_PCRn registers |
| RESET_b | Active-low reset input | Internal pull-down; accepts 100 ns minimum pulse width; supports brown-out detection and POR recovery |
| SWD_DIO, SWD_CLK | Serial Wire Debug interface | Two-pin debug port supporting full JTAG/SWD functionality; no external pull-ups required |
| XTAL0, EXTAL0 | 32 kHz crystal oscillator terminals | Supports low-power RTC and precise wake-up timing; requires 12.5 pF load capacitance crystal |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power architecture | 2 µA static current with full state retention and 4 µs wake-up - enables multi-year battery life in IoT endpoints |
| Energy-efficient Cortex-M0+ | Industry-leading 48 MHz throughput at 45 µA/MHz - reduces active time and overall energy per task |
| Integrated analog subsystem | 12-bit ADC + comparator with 6-bit DAC - eliminates need for external signal conditioning in sensor front-ends |
| Flexible clocking | FLL, internal IRCs (4 MHz/32 kHz), and crystal support - allows seamless transition between precision timing and lowest-power modes |
| Security ID | 80-bit unique chip identifier - supports device authentication and secure firmware binding in production |
| Bit Manipulation Engine | Hardware-accelerated bit-field operations - improves code density and interrupt latency in protocol stack implementations |
Applications
| Smart Wearables | Industrial Sensor Nodes |
|---|---|
Use Scenario: Compact fitness tracker monitoring heart rate, motion, and ambient light using analog sensors and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, data preprocessing, and host communication via UART to BLE module. Use Value: Sub-µA VLLS0 retention and 4 µs wake-up enable responsive button press detection while extending coin-cell life beyond 12 months. |
Use Scenario: Wireless temperature/humidity node deployed in factory HVAC ducts with 10-year battery target. IC Role / Device Role / Timing Role: System-on-chip handling periodic ADC sampling, CRC-protected RF packet assembly, and deep-sleep scheduling. Use Value: Integrated 12-bit ADC and low-leakage wakeup unit eliminate external components, reducing BOM cost and PCB area by 35%. |
| Portable Medical Devices | Home Automation Sensors |
Use Scenario: FDA-classified glucose meter requiring accurate analog measurement, tamper-resistant boot, and clinical-grade calibration storage. IC Role / Device Role / Timing Role: Safety-critical controller executing calibrated ADC routines, storing calibration coefficients in Flash, and enforcing secure boot sequence. Use Value: Factory-trimmed 1 kHz LPO and 80-bit UID support traceable calibration and anti-counterfeit firmware signing. |
Use Scenario: Zigbee/Z-Wave door/window contact sensor with magnetic reed switch and battery telemetry. IC Role / Device Role / Timing Role: Low-duty-cycle event detector waking on interrupt, reading GPIO state, and transmitting status over RF transceiver. Use Value: Nine low-power modes and programmable wakeup unit allow <1 µA average current during standby, achieving >7-year CR2032 lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL05Z32VLC4 | 32 KB Flash / 4 KB SRAM / same 32-pin LQFP package / identical peripherals and pinout | Higher memory headroom for OTA updates and larger protocol stacks (e.g., Matter, Thread) | Select when future firmware growth or dual-bank bootloading is required; otherwise MKL04Z16VLC4R offers optimal cost/performance balance |
| STM32L051K8U6 | 32 KB Flash / 8 KB SRAM / 32-pin QFN / ARM Cortex-M0+/16 MHz max / different peripheral set (no CMP/DAC, different ADC resolution) | Lacks integrated analog comparator with DAC; requires external components for sensor thresholding | Choose for ST ecosystem alignment or where higher SRAM is critical; avoid if analog comparator-based wake-on-event is needed |
Compared with MKL04Z16VLC4R, MKL05Z32VLC4 provides scalable memory within identical footprint and toolchain, while STM32L051K8U6 trades analog integration for broader ST software support - making MKL04Z16VLC4R optimal for cost-sensitive, analog-rich edge nodes.
Availability
MKL04Z16VLC4R is available at Aetrix Electronics and suitable for smart wearables, industrial sensor nodes, portable medical devices, home automation sensors, and battery-powered IoT gateways requiring stable component supply across long product lifecycles.
Supply support for MKL04Z16VLC4R 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 KL04 family - including MKL04Z16VLC4R - was designed specifically for ultra-low-power, cost-sensitive embedded applications demanding rich analog integration, robust industrial qualification, and seamless migration within the Kinetis ecosystem.
FAQ
What is the maximum operating frequency of the MKL04Z16VLC4R?
The MKL04Z16VLC4R features an ARM Cortex-M0+ core rated for up to 48 MHz operation under standard conditions (VDD = 1.71–3.6 V, TA = -40°C to +105°C). This frequency is achievable using the FLL with external crystal or internal reference, and is validated across all nine low-power modes except VLPR/VLPS, where core clock is limited to 4 MHz for energy optimization. The MKL04Z16VLC4R maintains full peripheral functionality at 48 MHz, including UART, SPI, and ADC sampling.
Does the MKL04Z16VLC4R support hardware debugging?
Yes, the MKL04Z16VLC4R includes a Serial Wire Debug (SWD) interface compliant with ARM CoreSight standards, supporting full breakpoint, watchpoint, and real-time trace capabilities via the Micro Trace Buffer. It uses two dedicated pins (SWD_DIO and SWD_CLK) and requires no external pull-up resistors. Debug access remains functional across all power modes except VLLS0 and VLLS1, where SWD is disabled to minimize leakage. The MKL04Z16VLC4R is fully supported by NXP's MCUXpresso IDE and compatible J-Link and CMSIS-DAP debug probes.
What analog peripherals are integrated into the MKL04Z16VLC4R?
The MKL04Z16VLC4R integrates a 12-bit SAR ADC with up to 16 channels, programmable reference selection (internal bandgap or external), and hardware averaging; plus an analog comparator (CMP0) with integrated 6-bit DAC for flexible threshold generation. These peripherals share the VDDA/VSSA analog domain and support low-power operation down to VLLS1 mode. The MKL04Z16VLC4R's ADC achieves ±1.5 LSB INL and supports single-ended/differential inputs, while the CMP+DAC combination enables wake-on-analog-event without CPU intervention - critical for battery-constrained sensor applications.
Is the MKL04Z16VLC4R pin-compatible with other Kinetis KL04 variants?
Yes, the MKL04Z16VLC4R is pin-compatible with all other KL04 devices in the 32-pin LQFP (LC) package, including MKL04Z8VLC4 and MKL04Z32VLC4. All share identical pin assignments, electrical characteristics, and thermal profiles. Firmware developed for MKL04Z16VLC4R runs unchanged on these variants, with differences limited to Flash/SRAM capacity and ordering-specific markings. This enables seamless scalability during design-in and production ramp - for example, prototyping with MKL04Z16VLC4R and upgrading to MKL04Z32VLC4 for field firmware updates.
What is the industrial temperature rating of the MKL04Z16VLC4R?
The MKL04Z16VLC4R is qualified for operation across an ambient temperature range of -40°C to +105°C, meeting industrial-grade reliability requirements. This rating is validated per JEDEC JESD22-A104 (temperature cycling) and JESD22-A108 (high-temperature operating life), with junction temperature limits up to +125°C. The MKL04Z16VLC4R maintains full electrical specifications - including ADC accuracy, clock stability, and low-power mode currents - across this full range, making it suitable for deployment in motor drives, building automation controllers, and outdoor environmental sensors.
MKL04Z16VLC4R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-LQFP
- Series:
- Kinetis KL0
- 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, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 28
- 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 14x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL04Z16VLC4R FAQ
1.How can I place an order for MKL04Z16VLC4R through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL04Z16VLC4R 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 MKL04Z16VLC4R reliable?
The price and inventory of MKL04Z16VLC4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL04Z16VLC4R is usually 5 days.
3.What payment methods are accepted for MKL04Z16VLC4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL04Z16VLC4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL04Z16VLC4R?
MKL04Z16VLC4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL04Z16VLC4R 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 MKL04Z16VLC4R?
For technical support, including MKL04Z16VLC4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL04Z16VLC4R requirements.
6.How does Aetrix verify that MKL04Z16VLC4R is sourced from the original manufacturer or authorized distributors?
All MKL04Z16VLC4R 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 MKL04Z16VLC4R meets industry standards.
7.What is the process for return or replacement of MKL04Z16VLC4R?
All MKL04Z16VLC4R units undergo pre-shipment inspection (PSI). If there is an issue with MKL04Z16VLC4R, 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 MKL04Z16VLC4R part is unused and in its original packaging.
Return procedure for MKL04Z16VLC4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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