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NXP Semiconductors MKL05Z16VLF4
- Part No.:
- MKL05Z16VLF4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MKL05Z16VLF4.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,149
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Product details
Overview
MKL05Z16VLF4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in 48-pin LQFP package, featuring 16 KB flash, 2 KB SRAM, 41 GPIOs, 12-bit ADC/DAC, low-power UART/I²C/SPI, and nine low-power modes. It targets battery-powered sensor nodes and portable medical devices requiring sub-μA static retention and 4 μs wakeup.
For engineers reviewing the MKL05Z16VLF4 datasheet, MKL05Z16VLF4 pinout, MKL05Z16VLF4 application, or MKL05Z16VLF4 equivalent, key selection criteria include its 48-pin LQFP-0.5 mm pitch footprint, VLLS0 stop current of 0.3–0.54 μA at 3.0 V, 12-bit SAR ADC with 16-channel input multiplexing, and integrated TSI touch interface for capacitive button sensing.
Technical Context
The MKL05Z16VLF4 implements an ARM Cortex-M0+ core with Bit Manipulation Engine and Micro Trace Buffer, executing from zero-wait-state flash memory. Its clock system integrates MCG with FBE/BLPE/FEI modes, supporting internal 4 MHz/32 kHz IRC and external 32 kHz–16 MHz crystals.
Power management includes nine configurable low-power modes (RUN, VLPR, STOP, VLPS, LLS, VLLS0–3), with VLLS0 enabling full state retention at ≤0.54 μA and 4 μs wakeup. Analog subsystem comprises 12-bit ADC (1.2 MSps), 12-bit DAC, analog comparator with 6-bit DAC reference, and low-leakage TSI for up to 16 electrodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 30.5 CoreMark/MHz with energy-efficient 32-bit processing |
| Memory | 16 KB flash / 2 KB SRAM - sufficient for BLE peripheral stacks and sensor fusion algorithms |
| GPIO | 41 general-purpose I/O pins - supports flexible peripheral mapping and hardware touch sensing via TSI |
| ADC | 12-bit SAR, 16-channel, 1.2 MSps - enables simultaneous sampling of multiple analog sensors |
| Low-Power Stop Current | VLLS0 mode: 0.30–0.54 μA @ 3.0 V - allows >10-year battery life in coin-cell-powered IoT endpoints |
| Wakeup Time | 4 μs from VLLS0 - meets real-time response requirements for motion-triggered wake events |
| Operating Voltage | 1.71–3.6 V - compatible with single Li-ion, two alkaline, or 3.3 V regulated supplies |
| Temperature Range | –40°C to +105°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power and ground rails | Dual-domain supply: VDD/VSS for digital logic; VDDA/VSSA for analog modules to minimize noise coupling |
| PTA0–PTA31, PTB0–PTB16 | GPIO bank terminals | 41 total I/Os with configurable pull-up/down, slew rate, and drive strength; PTA12/13/PTB0/1 support high-drive (18 mA) |
| XTAL/EXTAL | Crystal oscillator inputs | Supports 32 kHz watch crystal or 4–16 MHz main crystal; enables precise RTC and low-jitter communication clocks |
| TSI_CH0–TSI_CH15 | Touch sense inputs | Dedicated TSI module pins for capacitive proximity/button sensing without external components |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16 multiplexed ADC inputs mapped across GPIOs; supports differential and single-ended acquisition |
| UART0_TX/RX, I2C0_SCL/SDA, SPI0_PCS0/SCK/MOSI/MISO | Serial interface signals | Hardware-peripheral mapped I/Os - enable concurrent UART debug, I²C sensor bus, and SPI flash communication |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power stop mode | VLLS0 draws only 0.30–0.54 μA at 3.0 V with full register and RAM retention - eliminates need for external backup power |
| Fast wakeup capability | 4 μs transition from VLLS0 to active RUN mode - enables responsive event-driven operation in duty-cycled systems |
| Integrated touch sensing | Hardware TSI engine supports up to 16 electrodes with automatic calibration and noise immunity - reduces BOM cost vs. external touch controllers |
| Flexible clock architecture | MCG supports FEI/FBI/BLPI/BLPE/FBE/PBE modes - allows dynamic switching between precision (crystal) and ultra-low-power (IRC) sources |
| Robust analog subsystem | 12-bit ADC (1.2 MSps), 12-bit DAC, and analog comparator with programmable 6-bit DAC reference - enables closed-loop control without external signal conditioning |
| Security identifier | 80-bit unique chip ID per device - supports secure firmware binding and device authentication in cloud-connected applications |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via BLE or Sub-GHz RF every 5 minutes. IC Role / Device Role / Timing Role: Central controller managing sensor readout, data preprocessing, low-power radio interfacing, and deep-sleep scheduling. Use Value: VLLS0 current of 0.54 μA extends CR2032 battery life beyond 5 years; 4 μs wakeup ensures timely response to interrupt-driven sensor triggers. |
Use Scenario: Handheld pulse oximeter with OLED display, optical sensor interface, and USB charging. IC Role / Device Role / Timing Role: System-on-chip handling analog front-end (ADC/DAC), touch UI (TSI), display timing, and USB enumeration. Use Value: Integrated 12-bit ADC and TSI eliminate external signal chain ICs; 105°C rating supports reliable operation during extended clinical use. |
| Industrial Control Panel | Smart Home Actuator |
Use Scenario: DIN-rail mounted HVAC controller with RS-485 Modbus interface and local keypad. IC Role / Device Role / Timing Role: Real-time coordinator of serial communication, GPIO-based relay control, and on-board diagnostics. Use Value: Nine low-power modes allow adaptive power scaling - e.g., VLPR at 4 MHz during keypad polling, RUN at 48 MHz during Modbus packet processing. |
Use Scenario: Zigbee-enabled smart plug monitoring load current and enabling remote on/off via cloud API. IC Role / Device Role / Timing Role: Power metering frontend (ADC), Zigbee SoC companion (UART/I²C), and safety-critical watchdog supervisor. Use Value: COP software watchdog and 80-bit UID ensure field reliability and device identity binding; 1.71–3.6 V range accommodates wide-input AC-DC adapters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L051K8U6 | 32 MHz Cortex-M0+, 64 KB flash, 8 KB SRAM, 29 GPIOs, 12-bit ADC, 1.65–3.6 V supply | Larger memory and higher GPIO count but lacks integrated TSI; requires external touch controller for capacitive UI | Select when larger code space or more peripherals are needed, and touch is implemented externally |
| EFM32ZG108F16 | 24 MHz Cortex-M0+, 16 KB flash, 4 KB SRAM, 24 GPIOs, 12-bit ADC, 1.85–3.8 V supply, 0.9 μA STOP mode | Higher STOP current (0.9 μA vs. 0.54 μA), fewer GPIOs, no TSI, but superior EFM32 sleep-mode configurability | Select when advanced autonomous peripheral triggering (LESENSE) is prioritized over touch integration and lowest quiescent current |
Compared with STM32L051K8U6 and EFM32ZG108F16, MKL05Z16VLF4 offers the lowest VLLS0 current and native TSI-critical for compact, battery-constrained designs where capacitive UI and multi-year runtime are mandatory.
Availability
MKL05Z16VLF4 is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial control panels, smart home actuators, and battery-backed data loggers requiring stable component supply across long production lifecycles.
Supply support for MKL05Z16VLF4 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 roots in Freescale's MCU heritage.
The Kinetis KL05 family was designed specifically for ultra-low-power embedded applications demanding sub-μA sleep, fast wakeup, and integrated analog/touch functionality - targeting cost-sensitive, size-constrained edge devices.
FAQ
What is the maximum operating frequency of the MKL05Z16VLF4 core?
The MKL05Z16VLF4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achievable using the FBE clock mode with an external 4–16 MHz crystal, or the FEI mode with internal 4 MHz IRC multiplied via FLL. At 48 MHz, the device delivers 30.5 CoreMark/MHz while maintaining low dynamic power consumption.
Does the MKL05Z16VLF4 support hardware touch sensing?
Yes, the MKL05Z16VLF4 integrates a dedicated Touch Sense Interface (TSI) module capable of driving up to 16 capacitive electrodes without external components. It provides automatic calibration, noise filtering, and low-power scanning - enabling robust button/slider implementations in MKL05Z16VLF4-based human-machine interfaces.
What is the lowest power consumption mode available on the MKL05Z16VLF4?
The MKL05Z16VLF4 achieves its lowest power state in Very-Low-Leakage Stop Mode 0 (VLLS0), drawing just 0.30–0.54 μA at 3.0 V while retaining full register and RAM contents. This mode supports 4 μs wakeup time and is ideal for infrequently polled battery-powered endpoints where multi-year operation is required.
How many analog-to-digital converter (ADC) channels does the MKL05Z16VLF4 have?
The MKL05Z16VLF4 includes a 12-bit SAR ADC with 16 configurable input channels (ADC0_SE0 through ADC0_SE15). These channels are multiplexed across GPIO pins and support both single-ended and differential acquisition, with programmable sample time and hardware trigger options for synchronized sensor reading.
Is the MKL05Z16VLF4 pin-compatible with other members of the KL05 family?
No - the MKL05Z16VLF4 uses a 48-pin LQFP package (7×7 mm, 0.5 mm pitch), while other KL05 variants use 24-pin QFN (MKL05ZxxVFK4), 32-pin QFN (MKL05ZxxVFM4), or 32-pin LQFP (MKL05ZxxVLC4). Pin assignments differ across packages; migration requires PCB redesign and signal remapping.
MKL05Z16VLF4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- Kinetis KL0
- Packaging:
- Tray
- 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:
- 41
- 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; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL05Z16VLF4 FAQ
1.How can I place an order for MKL05Z16VLF4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL05Z16VLF4 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 MKL05Z16VLF4 reliable?
The price and inventory of MKL05Z16VLF4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL05Z16VLF4 is usually 5 days.
3.What payment methods are accepted for MKL05Z16VLF4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL05Z16VLF4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL05Z16VLF4?
MKL05Z16VLF4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL05Z16VLF4 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 MKL05Z16VLF4?
For technical support, including MKL05Z16VLF4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL05Z16VLF4 requirements.
6.How does Aetrix verify that MKL05Z16VLF4 is sourced from the original manufacturer or authorized distributors?
All MKL05Z16VLF4 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 MKL05Z16VLF4 meets industry standards.
7.What is the process for return or replacement of MKL05Z16VLF4?
All MKL05Z16VLF4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL05Z16VLF4, 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 MKL05Z16VLF4 part is unused and in its original packaging.
Return procedure for MKL05Z16VLF4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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