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NXP Semiconductors MKL15Z32VLH4
- Part No.:
- MKL15Z32VLH4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MKL15Z32VLH4.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,106
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Product details
Overview
MKL15Z32VLH4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM® Cortex®-M0+ based microcontroller in the Kinetis KL15 sub-family, designed for ultra-low-power embedded applications. It integrates 32 KB flash, 4 KB SRAM, a 16-bit SAR ADC, 12-bit DAC, two UARTs, two I²C modules, two SPI interfaces, and up to 54 GPIOs in a 64-pin LQFP package. It operates across –40°C to +105°C and supports nine low-power modes including VLLS0 with 0.12 µA static current.
For engineers reviewing the MKL15Z32VLH4 datasheet, MKL15Z32VLH4 pinout, MKL15Z32VLH4 application, or MKL15Z32VLH4 equivalent, this page delivers verified technical context, validated pin assignments, real-world use cases in battery-powered HMI and sensor nodes, and confirmed alternative parts with documented functional and packaging differences.
Technical Context
The MKL15Z32VLH4 implements an ARM Cortex-M0+ core with Bit Manipulation Engine (BME) and Micro Trace Buffer (MTB), executing from zero-wait-state flash memory. Its clock system includes a multi-purpose MCG with internal 4 MHz IRC, 32 kHz LPO, and support for external crystals from 32 kHz to 32 MHz.
Power management is centered on nine configurable low-power modes - VLPR, VLPS, LLS, STOP, and three VLLS variants - each with distinct wake-up sources, clock gating, and state retention options. The device uses 90 nm TFS technology and features energy-saving techniques including dynamic clock gating and optimized peripheral clock enables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers industry-leading throughput per MHz for cost-sensitive 32-bit control tasks |
| Memory | 32 KB flash / 4 KB SRAM - sufficient for compact firmware with real-time ISR handling and small data buffers |
| ADC | 16-bit SAR ADC with up to 16 channels - enables high-resolution sensor acquisition without external signal conditioning |
| DAC | 12-bit DAC - provides precise analog output for calibration, biasing, or waveform generation |
| GPIO | 54 general-purpose I/O pins - supports flexible peripheral multiplexing and hardware touch sensing via TSI |
| Low-Power Modes | Nine modes including VLLS0 (0.12 µA @ 25°C) - allows years of operation on coin-cell batteries in always-on monitoring |
| Operating Voltage | 1.71–3.6 V - compatible with single-cell Li-ion, LiFePO₄, and 3.3 V regulated systems |
| Temperature Range | –40°C to +105°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
64-pin LQFP (10 × 10 × 1.4 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pinout conforms to KL15 signal multiplexing specification Rev5 (2014), with dedicated SWD debug, multiple UART/I²C/SPI channel mappings, and TSI electrode inputs distributed across PORTA, PORTB, PORTC, and PORTD.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply input | Primary 1.71–3.6 V power rail; decoupling required per datasheet layout guidelines |
| VDDA | Analog supply input | Must be within ±0.1 V of VDD; powers ADC, DAC, CMP, and bandgap reference |
| PTA0/TSI0 | Touch sense input / GPIO | Capacitive touch electrode interface; supports self- or mutual-capacitance measurement |
| PTB16/UART0_RX | UART0 receive input | Asynchronous serial input with programmable oversampling and noise filtering |
| PTC6/I²C0_SCL | I²C0 clock output | Open-drain output with internal pull-up option; supports standard/fast-mode (100/400 kHz) |
| PTD0/SWD_CLK | SWD debug clock | 2-pin SWD interface for programming and real-time debugging; no JTAG support |
| RESET_b | Active-low reset input | Configurable as GPIO output (pseudo open-drain); internal pull-down when active |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power run mode | 47 µA/MHz at 48 MHz - enables efficient computation while maintaining responsiveness in portable devices |
| Full-state-retention stop mode | 2 µA with 4 µs wake-up - preserves RAM and register contents during sleep; ideal for event-driven wake-up architectures |
| Integrated touch sensing interface (TSI) | Hardware-accelerated capacitive sensing on up to 16 electrodes - eliminates need for external touch controller IC |
| Low-leakage wakeup unit | Supports GPIO, RTC alarm, LPTMR, and comparator interrupts in all low-power modes - ensures deterministic wake-up latency |
| Bit Manipulation Engine (BME) | Hardware bit-field access instructions - reduces code size and improves efficiency in register-level peripheral control |
| Micro Trace Buffer (MTB) | 512-byte instruction trace buffer - enables non-intrusive runtime analysis and fault diagnosis without external debugger |
Applications
| Smart Sensor Node | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and motion data every 30 seconds, transmitting via UART to gateway. IC Role / Device Role / Timing Role: Main system controller managing sensor polling, ADC conversion, low-power timer scheduling, and UART transmission. Use Value: VLLS0 mode (0.12 µA) extends 10-year battery life; integrated 16-bit ADC eliminates external signal chain components. |
Use Scenario: Touch-enabled local operator interface for PLC-controlled HVAC system with LED indicators and status feedback. IC Role / Device Role / Timing Role: Human-machine interface processor running TSI-based touch detection, driving LEDs via GPIO, and communicating with main controller over I²C. Use Value: Hardware TSI reduces firmware overhead; 54 GPIOs support direct LED/switch interfacing without expanders. |
| Medical Wearable Monitor | Asset Tracking Module |
Use Scenario: Compact wearable measuring heart rate via photoplethysmography (PPG), storing short-term logs, and alerting via buzzer. IC Role / Device Role / Timing Role: Signal acquisition controller using 12-bit DAC for LED bias control, 16-bit ADC for analog front-end digitization, and real-time clock for timestamping. Use Value: Integrated DAC/ADC pair enables closed-loop analog control; -40°C to +105°C rating supports body-worn thermal cycling. |
Use Scenario: GPS-tracked logistics tag reporting location every 6 hours, sleeping between transmissions to conserve energy. IC Role / Device Role / Timing Role: Power manager and communication coordinator - wakes GPS module, handles UART data framing, manages flash logging, and triggers cellular modem. Use Value: Nine low-power modes allow precise trade-off between wake latency and energy; 32 KB flash stores firmware plus encrypted telemetry buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKL25Z32VLH4 | Same 64-pin LQFP package; adds USB OTG controller and higher flash density (32 KB vs. same), but lacks TSI and has identical core/peripheral set otherwise | Required where USB device connectivity is needed; not suitable if TSI is mandatory and USB is unused | Select MKL25Z32VLH4 only when USB host/device capability is essential; MKL15Z32VLH4 remains optimal for pure low-power sensor/HMI roles |
| STM32L053R8T6 | 32-pin LQFP, 32 KB flash, 8 KB SRAM; ARM Cortex-M0+, 32 MHz max; includes AES-128 and true RNG - no TSI or 16-bit ADC | Better suited for secure firmware updates and cryptographic operations; lower I/O count limits HMI complexity | Choose STM32L053R8T6 for security-critical edge nodes; MKL15Z32VLH4 preferred when touch interface or high-resolution analog capture is required |
Compared with MKL25Z32VLH4 and STM32L053R8T6, the MKL15Z32VLH4 uniquely balances ultra-low static power (0.12 µA), integrated touch sensing, and 16-bit ADC resolution in a mature, production-proven Kinetis platform - making it the most direct fit for cost-optimized, battery-constrained HMI and sensor edge nodes.
Availability
MKL15Z32VLH4 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMI panels, medical wearables, and asset tracking modules requiring stable component supply and long-term industrial lifecycle support.
Supply support for MKL15Z32VLH4 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, IoT, and mobile applications. Formerly Freescale Semiconductor, it acquired the Kinetis portfolio in 2015.
The MKL15Z32VLH4 belongs to the Kinetis KL15 sub-family - a line of entry-level, ultra-low-power ARM Cortex-M0+ MCUs engineered specifically for battery-operated human-machine interfaces, sensor fusion nodes, and cost-sensitive industrial controls.
FAQ
What is the maximum operating frequency of the MKL15Z32VLH4?
The MKL15Z32VLH4 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 range and using the PEE clock mode with an external crystal or oscillator. At 48 MHz, the device delivers 47 µA/MHz efficiency in run mode, confirming its optimization for performance-per-milliwatt in resource-constrained designs.
Does the MKL15Z32VLH4 support hardware touch sensing?
Yes, the MKL15Z32VLH4 includes a dedicated Low-Power Hardware Touch Sensor Interface (TSI) supporting up to 16 electrodes. It operates independently of the CPU in all low-power modes, enabling capacitive touch detection with minimal current draw. The TSI module is accessible on specific pins like PTA0–PTA15 and requires no external components - a key differentiator versus software-only touch solutions that consume CPU cycles.
What are the lowest-power operating modes supported by the MKL15Z32VLH4?
The MKL15Z32VLH4 supports nine low-power modes, with Very-Low-Leakage Stop Mode 0 (VLLS0) offering the lowest static current: 0.12 µA at 25°C and 3.0 V when brownout detection is disabled (SMC_STOPCTRL[PORPO] = 1). In this mode, full register and RAM state is retained, and wake-up occurs in 4 µs via selected interrupts - making it ideal for long-duration battery applications requiring instant responsiveness.
Can the MKL15Z32VLH4 operate across extended temperature ranges?
Yes, the MKL15Z32VLH4 is fully specified for operation from –40°C to +105°C ambient temperature. This extended range is validated across all electrical characteristics including flash programming, ADC accuracy, and low-power mode behavior. The device uses 90 nm TFS process technology and undergoes industrial-grade qualification - confirming suitability for under-hood automotive, factory-floor automation, and outdoor metering deployments.
How many communication interfaces does the MKL15Z32VLH4 include?
The MKL15Z32VLH4 integrates two UART modules (including one low-power UART), two I²C modules, and two SPI modules. All are independently clocked and support standard protocols - UARTs handle asynchronous serial at up to 115.2 kbps, I²C modules operate in standard/fast-mode (100/400 kHz), and SPI supports master/slave configurations with programmable phase/polarity. These interfaces are mapped across multiple GPIO ports to enable flexible PCB routing.
MKL15Z32VLH4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- 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:
- 54
- 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 16x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MKL15Z32VLH4 FAQ
1.How can I place an order for MKL15Z32VLH4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL15Z32VLH4 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 MKL15Z32VLH4 reliable?
The price and inventory of MKL15Z32VLH4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL15Z32VLH4 is usually 5 days.
3.What payment methods are accepted for MKL15Z32VLH4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL15Z32VLH4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL15Z32VLH4?
MKL15Z32VLH4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL15Z32VLH4 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 MKL15Z32VLH4?
For technical support, including MKL15Z32VLH4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL15Z32VLH4 requirements.
6.How does Aetrix verify that MKL15Z32VLH4 is sourced from the original manufacturer or authorized distributors?
All MKL15Z32VLH4 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 MKL15Z32VLH4 meets industry standards.
7.What is the process for return or replacement of MKL15Z32VLH4?
All MKL15Z32VLH4 units undergo pre-shipment inspection (PSI). If there is an issue with MKL15Z32VLH4, 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 MKL15Z32VLH4 part is unused and in its original packaging.
Return procedure for MKL15Z32VLH4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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