NXP Semiconductors MKL05Z32VLC4R
- Part No.:
- MKL05Z32VLC4R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
MKL05Z32VLC4R.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MKL05Z32VLC4R from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M0+ microcontroller in 32-pin LQFP package, delivering 48 MHz operation, 32 KB flash, 4 KB SRAM, and ultra-low-power operation down to 0.3 μA in VLLS0 mode. It integrates ADC, DAC, TSI, UART, SPI, I²C, and six-channel TPM for compact embedded control in battery-powered sensor nodes and industrial peripherals.
For engineers reviewing the MKL05Z32VLC4R datasheet, MKL05Z32VLC4R pinout, MKL05Z32VLC4R application, or MKL05Z32VLC4R equivalent, key selection criteria include its 32-pin LQFP footprint, -40°C to +105°C extended temperature rating, 1.71–3.6 V supply range, 28 GPIOs, and verified low-power run/wake behavior with 4 μs wakeup from VLPS mode.
Technical Context
The MKL05Z32VLC4R 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/32 kHz IRC and external crystal support up to 16 MHz. Its power architecture features nine low-power modes-VLLS0 through RUN-with dynamic clock gating, zero-wait-state flash, and voltage scaling optimized for energy-constrained applications.
Peripheral integration includes a 12-bit SAR ADC with hardware averaging, a 12-bit DAC, analog comparator with integrated 6-bit DAC reference, low-power UART with 115.2 kbps capability, and TSI supporting up to 16 electrodes. All modules are accessible via configurable GPIO multiplexing with pull-up/pull-down and slew-rate control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers 32-bit performance at sub-100 μA/MHz efficiency for real-time control loops. |
| Memory | 32 KB flash / 4 KB SRAM - sufficient for firmware with USB stack, sensor fusion, or BLE host logic in resource-limited designs. |
| Supply Range | 1.71–3.6 V - supports direct Li-ion/Li-Po battery operation without regulator, reducing BOM count. |
| Low-Power Modes | VLLS0: 0.3–0.54 μA @ 3 V - enables decade-long battery life in wake-on-event sensor endpoints. |
| GPIO Count | 28 pins with interrupt, DMA, and TSI support - provides flexible I/O mapping for mixed-signal interface consolidation. |
| ADC/DAC | 12-bit SAR ADC (16 ch), 12-bit DAC - enables closed-loop analog control (e.g., current regulation, sensor calibration) without external converters. |
| Temperature Range | -40°C to +105°C - qualified for industrial motor drives, automotive body electronics, and outdoor metering. |
Pinout & Package
32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, moisture sensitivity level 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power/ground | Primary supply domain; decoupling required within 5 mm of each VDD pin for stable 48 MHz operation. |
| VDDA, VSSA | Analog power/ground | Isolated analog domain; must be routed separately from digital ground to maintain 12-bit ADC accuracy. |
| PTA0–PTA11, PTB0–PTB11, PTC0–PTC7 | GPIO / peripheral multiplex | 28 total GPIOs; each supports interrupt, DMA request, and TSI electrode function with programmable drive strength. |
| RESET_b | Active-low reset input | Asynchronous reset with internal pull-down; accepts 100 ns minimum pulse width for reliable recovery from brownout. |
| SWD_DIO, SWD_CLK | Debug interface | Two-pin Serial Wire Debug port - enables full debug, flash programming, and trace without dedicated JTAG pins. |
| XTAL, EXTAL | Crystal oscillator terminals | Supports 32 kHz watch crystal or 4–16 MHz main crystal; internal load caps eliminate need for external capacitors in many cases. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | VLLS0 mode draws ≤0.54 μA @ 3 V with RAM retention and 4 μs wake - extends coin-cell life beyond 10 years in periodic sensing. |
| Integrated touch sensing | Hardware TSI module supports 16 electrodes with noise immunity and auto-calibration - eliminates external touch controller in HMI designs. |
| Flexible clocking | Four internal clock sources (FLL, IRC, LPO, SIRC) plus external crystal - enables seamless transition between high-speed RUN and sub-μA STOP modes. |
| Robust analog subsystem | 12-bit ADC with hardware averaging, 12-bit DAC, and comparator with 6-bit reference DAC - supports precision analog signal generation and threshold detection in one chip. |
| Secure identity | 80-bit unique identification number per die - enables device authentication and secure firmware update binding in IoT edge nodes. |
Applications
| Smart Sensor Node | Industrial Control Panel |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and motion every 5 minutes, transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Central MCU executing sensor polling, data preprocessing, and low-power UART transmission; manages wake/sleep cycles using LPTMR and RTC alarms. Use Value: 0.38 μA VLLS0 current and 4 μs wake time enable >7-year CR2032 battery life while maintaining full RAM state and fast response to external interrupts. | Use Scenario: Front-panel interface for HVAC controller with push buttons, LED indicators, and rotary encoder. IC Role / Device Role / Timing Role: HMI processor handling touch/button inputs via TSI/GPIO, driving LEDs via PWM, and communicating with main controller over UART/I²C. Use Value: Integrated TSI and 28 GPIOs consolidate front-end interface into single chip, eliminating discrete R/C networks and reducing PCB area by 35%. |
| Portable Medical Device | Energy Metering Module |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, computing SpO₂, and displaying results on segment LCD. IC Role / Device Role / Timing Role: Signal acquisition MCU running 12-bit ADC at 1 ksps, performing real-time FIR filtering, and driving LCD via GPIO-controlled segments. Use Value: On-chip 12-bit DAC generates precise LED bias currents; 12-bit ADC with hardware averaging achieves <1 LSB noise floor at 100 Hz bandwidth. | Use Scenario: Sub-metering module monitoring current/voltage on three-phase industrial loads using shunt resistors and isolation amplifiers. IC Role / Device Role / Timing Role: Data concentrator sampling dual-channel ADCs, calculating RMS/THD, storing logs in flash, and reporting via RS-485 (UART + external transceiver). Use Value: 32 KB flash stores 30 days of 15-minute interval logs; 4 KB SRAM buffers real-time calculations; -40°C to +105°C rating ensures reliability inside electrical cabinets. |
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 GPIO, 12-bit ADC, but no integrated DAC or TSI. | Requires external DAC for analog output; lacks hardware touch sensing - adds BOM cost and layout complexity for HMI. | Select when higher flash/SRAM or ST's ecosystem/toolchain preference outweighs need for on-chip DAC/TSI. |
| EFM32ZG108F32 | 24 MHz Cortex-M0+, 32 KB flash, 4 KB SRAM, 24 GPIO, 12-bit ADC, no DAC, TSI limited to 4 channels. | Lower core speed limits real-time control loop frequency; reduced TSI channel count restricts multi-button touch panels. | Choose for ultra-low active current (<100 μA/MHz) where 48 MHz performance is unnecessary and TSI scale is minimal. |
Compared with STM32L051K8U6 and EFM32ZG108F32, MKL05Z32VLC4R uniquely combines 48 MHz Cortex-M0+, integrated 12-bit DAC, full 16-channel TSI, and sub-μA VLLS0 operation in a 32-pin LQFP - making it optimal for space-constrained, battery-powered HMI and sensor fusion designs requiring analog generation and robust touch.
Availability
MKL05Z32VLC4R is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMI interfaces, portable medical devices, and energy metering modules requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MKL05Z32VLC4R 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 processing.
The Kinetis KL05 family, including MKL05Z32VLC4R, was designed for cost-sensitive, battery-operated embedded applications demanding high integration, ultra-low power, and rapid time-to-market - especially in sensor hubs, wearables, and industrial controls.
FAQ
What is the maximum operating frequency of the MKL05Z32VLC4R?
The MKL05Z32VLC4R 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 FBE (FEI bypassed external) clock mode with an external crystal up to 16 MHz. The device maintains full functionality-including flash execution, peripheral operation, and debug access-at this speed.
Does the MKL05Z32VLC4R support hardware touch sensing?
Yes, the MKL05Z32VLC4R includes a dedicated Touch Sensing Interface (TSI) module capable of supporting up to 16 electrodes. It provides hardware-accelerated capacitive sensing with built-in noise filtering, auto-calibration, and low-power operation - enabling robust button, slider, and proximity detection without external components or CPU overhead. This feature is fully documented in the KL05 Reference Manual and validated in production silicon.
What are the lowest power consumption modes available on the MKL05Z32VLC4R?
The MKL05Z32VLC4R offers nine low-power modes, with VLLS0 (Very-Low-Leakage Stop Mode 0) delivering the lowest current draw: 0.30–0.54 μA at 3.0 V and 25°C, while retaining full SRAM content and register state. Wakeup occurs in under 4 μs via GPIO, RTC alarm, or LPTMR. This mode is ideal for infrequent-event applications like smoke detectors or remote sensors.
Can the MKL05Z32VLC4R operate across the full industrial temperature range?
Yes, the MKL05Z32VLC4R is qualified for operation from -40°C to +105°C ambient temperature. This extended rating is confirmed in the official Freescale/NXP datasheet (Rev 4, March 2014), including full specification compliance for voltage, timing, and power consumption across the range. It is suitable for deployment in industrial enclosures, automotive under-hood environments, and outdoor metering equipment.
How many GPIO pins does the MKL05Z32VLC4R provide in its 32-pin LQFP package?
The MKL05Z32VLC4R in the 32-pin LQFP (LC) package provides 28 general-purpose I/O pins. These are distributed across PORTA (12 pins), PORTB (12 pins), and PORTC (7 pins), with one pin reserved for RESET_b and one for VREFH. All 28 GPIOs support interrupt generation, DMA request triggering, and TSI electrode assignment - enabling flexible hardware reuse in compact designs.
MKL05Z32VLC4R 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:
- 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 14x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL05Z32VLC4R FAQ
1.How can I place an order for MKL05Z32VLC4R through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL05Z32VLC4R 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 MKL05Z32VLC4R reliable?
The price and inventory of MKL05Z32VLC4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL05Z32VLC4R is usually 5 days.
3.What payment methods are accepted for MKL05Z32VLC4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL05Z32VLC4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL05Z32VLC4R?
MKL05Z32VLC4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL05Z32VLC4R 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 MKL05Z32VLC4R?
For technical support, including MKL05Z32VLC4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL05Z32VLC4R requirements.
6.How does Aetrix verify that MKL05Z32VLC4R is sourced from the original manufacturer or authorized distributors?
All MKL05Z32VLC4R 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 MKL05Z32VLC4R meets industry standards.
7.What is the process for return or replacement of MKL05Z32VLC4R?
All MKL05Z32VLC4R units undergo pre-shipment inspection (PSI). If there is an issue with MKL05Z32VLC4R, 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 MKL05Z32VLC4R part is unused and in its original packaging.
Return procedure for MKL05Z32VLC4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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