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NXP Semiconductors MKL15Z32VFM4R
- Part No.:
- MKL15Z32VFM4R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MKL15Z32VFM4R.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,921
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Product details
Overview
MKL15Z32VFM4R from NXP Semiconductors (formerly Freescale) is a 32-bit ARM Cortex-M0+ microcontroller optimized for ultra-low-power embedded applications. It operates at up to 48 MHz, integrates 32 KB flash and 4 KB SRAM, supports 28 GPIOs, and delivers 47 μA/MHz run current and 2 μA static current with full state retention - enabling battery-powered sensor nodes, wearable health monitors, and smart metering endpoints.
For engineers reviewing the MKL15Z32VFM4R datasheet, MKL15Z32VFM4R pinout, MKL15Z32VFM4R application, or MKL15Z32VFM4R equivalent, key selection criteria include its QFN-32 package, -40°C to 105°C industrial temperature range, integrated 16-bit SAR ADC and 12-bit DAC, dual UART + I²C + SPI interfaces, and nine low-power modes including VLLS0 (0.12 μA typical).
Technical Context
The MKL15Z32VFM4R implements an ARM Cortex-M0+ core with Bit Manipulation Engine and Micro Trace Buffer, paired with a multi-mode clock system featuring internal 4 MHz IRC, 32 kHz LPO, and external crystal support (32 kHz–32 MHz). Its power architecture includes clock gating, dynamic voltage scaling, and dedicated low-leakage wakeup units for sub-microamp stop modes.
Peripheral integration includes a 6-channel Timer/PWM (TPM), two 2-channel TPM modules, real-time clock (RTC), low-power UART, two standard UARTs, two I²C modules, two SPI modules, TSI touch interface, analog comparator with 6-bit DAC, and SWD debug interface - all accessible via 28 GPIOs in the 32-pin QFN package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - delivers industry-leading 1.25 DMIPS/MHz for deterministic real-time control. |
| Memory | 32 KB flash / 4 KB SRAM - sufficient for BLE stack + sensor fusion firmware with zero external memory required. |
| Power Consumption | 47 μA/MHz run mode; 2 μA VLLS0 with full state retention - enables 10+ year battery life in coin-cell-powered IoT endpoints. |
| ADC/DAC | 16-bit SAR ADC (single-ended); 12-bit DAC - supports precision analog sensing and programmable reference generation. |
| I/O Count | 28 GPIOs - provides ample digital control and sensing capability within compact 5×5 mm QFN footprint. |
| Operating Range | 1.71–3.6 V supply; -40°C to +105°C ambient - suitable for industrial automation and automotive under-hood auxiliary modules. |
| Low-Power Modes | Nine modes including VLLS0 (0.12 μA), VLPS (3.75 μA), and STOP (319 μA) - enables granular energy optimization per use case. |
Pinout & Package
Package: 32-pin QFN (VFM), 5 mm × 5 mm × 1 mm, 0.5 mm pitch, exposed thermal pad (EP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply | Primary 1.71–3.6 V power input; decoupling required per datasheet layout guidelines. |
| VSS | Digital ground | Reference return path for digital logic and I/O; must be connected to EP for thermal performance. |
| VDDA/VSSA | Analog supply/ground | Separate 1.71–3.6 V analog domain; isolation prevents noise coupling into ADC/DAC paths. |
| PTA0–PTA7 | GPIO Port A | 8 configurable pins supporting UART0, SPI0, I²C0, TPM0, and TSI channels. |
| PTB0–PTB7 | GPIO Port B | 8 pins with high-drive capability (18 mA), supporting UART1, SPI1, TPM1, and ADC inputs. |
| PTC0–PTC7 | GPIO Port C | 8 pins multiplexed with RTC_CLKOUT, LPTMR, CMP, and ADC; supports touch sensing via TSI. |
| PTD0–PTD7 | GPIO Port D | 8 pins including SWD_DIO/SWD_CLK for debug; supports TPM2, UART2, and analog comparator outputs. |
| RESET_b | Active-low reset | Asynchronous reset input; internal pull-down active when configured as RESET; open-drain capable as GPIO. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power architecture | 90 nm TFS process with clock/power gating and zero-wait-state flash - enables sub-μA sleep while retaining RAM and register context. |
| Integrated analog subsystem | 16-bit SAR ADC (±1 LSB INL), 12-bit DAC (±1 LSB INL), and analog comparator with 6-bit DAC reference - eliminates need for external signal conditioning in sensor front-ends. |
| Human-machine interface (HMI) | Hardware-accelerated TSI module supporting up to 16 electrodes - enables robust capacitive touch buttons/sliders with <10 μA active current. |
| Debug & trace | SWD interface with Micro Trace Buffer (MTB) - provides non-intrusive instruction trace for real-time firmware analysis without external probes. |
| Security foundation | 80-bit unique identification number per chip - supports secure boot, device authentication, and firmware binding in production systems. |
Applications
| Smart Sensor Node | Wearable Health Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and motion data every 5 seconds for cloud transmission. IC Role / Device Role / Timing Role: Central controller managing sensor polling, ADC conversion, data preprocessing, BLE radio handoff, and adaptive sleep/wake scheduling. Use Value: 0.12 μA VLLS0 mode extends CR2032 battery life beyond 5 years; integrated TSI enables on-device gesture control without extra ICs. |
Use Scenario: Compact wrist-worn device measuring heart rate, SpO₂, and activity using optical sensors and accelerometers. IC Role / Device Role / Timing Role: Real-time signal processor running PPG/accelerometer algorithms, driving OLED display, and managing USB charging protocol. Use Value: 16-bit ADC resolution captures subtle photoplethysmogram waveform details; 12-bit DAC generates precise LED bias currents for optimal SNR. |
| Industrial Smart Meter | Home Automation Controller |
Use Scenario: DIN-rail mounted electricity meter performing RMS voltage/current calculation, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Primary metrology engine interfacing with isolated sigma-delta ADCs, executing IEC 62053-compliant calculations, and managing secure firmware updates. Use Value: -40°C to +105°C rating ensures reliability in outdoor enclosures; hardware CRC engine accelerates secure OTA update verification. |
Use Scenario: Wall-mounted hub coordinating Zigbee/Z-Wave lighting, HVAC, and security peripherals via multiple concurrent protocols. IC Role / Device Role / Timing Role: Protocol bridge and local decision engine handling scene automation, occupancy-based scheduling, and encrypted local command execution. Use Value: Dual UART + I²C + SPI enables simultaneous connection to 3+ wireless SoCs; low-power timer (LPTMR) maintains precise 100 ms scheduling accuracy across sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L051K8U6 | 32 KB flash / 8 KB SRAM; 32 MHz Cortex-M0+; 12-bit ADC (1.14 MSPS); no integrated DAC or TSI. | Lacks hardware touch interface and 12-bit DAC; requires external components for capacitive sensing or analog output. | Select when higher SRAM headroom is needed and touch/DAC are implemented externally. |
| EFM32ZG108F32 | 32 KB flash / 4 KB RAM; 24 MHz Cortex-M0+; 12-bit ADC (1 MSPS); 2-channel 12-bit DAC; no TSI. | Lower core frequency limits real-time DSP throughput; no hardware touch engine increases firmware overhead. | Prefer for cost-sensitive designs where 24 MHz operation suffices and touch is software-based. |
Compared with MKL15Z32VFM4R, STM32L051K8U6 offers more SRAM but omits integrated DAC and TSI, increasing BOM count; EFM32ZG108F32 provides dual DACs but halves CPU performance, limiting complex sensor fusion - making MKL15Z32VFM4R optimal for balanced analog-rich, ultra-low-power edge nodes.
Availability
MKL15Z32VFM4R is available at Aetrix Electronics and suitable for smart sensor nodes, wearable health monitors, and industrial smart meters requiring stable component supply across extended product lifecycles.
Supply support for MKL15Z32VFM4R 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 KL15 family - including MKL15Z32VFM4R - was designed specifically for cost-sensitive, battery-operated embedded systems demanding best-in-class energy efficiency without sacrificing peripheral richness or development ecosystem maturity.
FAQ
What is the maximum operating frequency of the MKL15Z32VFM4R?
The MKL15Z32VFM4R features an ARM Cortex-M0+ core rated for up to 48 MHz operation in normal run mode. In very-low-power run (VLPR) mode, it operates at up to 4 MHz to minimize current draw while maintaining active processing capability - a key enabler for always-on sensor applications where MKL15Z32VFM4R delivers 47 μA/MHz efficiency.
Does the MKL15Z32VFM4R support hardware touch sensing?
Yes, the MKL15Z32VFM4R integrates a dedicated Touch Sensing Interface (TSI) module supporting up to 16 electrodes with hardware-accelerated scanning and noise immunity features. This allows MKL15Z32VFM4R to implement robust capacitive touch buttons, sliders, or wheels with minimal CPU intervention and sub-10 μA active current - eliminating external touch controllers.
What are the memory resources available on the MKL15Z32VFM4R?
The MKL15Z32VFM4R includes 32 KB of on-chip program flash memory and 4 KB of SRAM. Flash supports read-while-write and has a zero-wait-state controller for deterministic execution; SRAM is partitioned to support low-power retention during deep-sleep modes. These resources are sufficient to host RTOS-based firmware with BLE or IEEE 802.15.4 stacks alongside application logic in MKL15Z32VFM4R deployments.
Which low-power modes does the MKL15Z32VFM4R support, and what is the lowest current draw?
The MKL15Z32VFM4R supports nine low-power modes, including Very-Low-Leakage Stop Mode 0 (VLLS0) with full register and RAM retention. In VLLS0 with PORPO=1, MKL15Z32VFM4R achieves a typical current draw of 0.12 μA at 25°C - among the lowest in its class - enabling decade-long operation on primary lithium batteries without recharge infrastructure.
Is the MKL15Z32VFM4R pin-compatible with other Kinetis KL15 variants?
No, MKL15Z32VFM4R is not pin-compatible with higher-pin-count KL15 variants (e.g., MKL15Z32VFT4 or MKL15Z32VLH4) due to differing QFN-32 vs. QFN-48 vs. LQFP-64 footprints. However, it shares identical peripheral register maps and software compatibility with all KL15 family members - allowing firmware reuse across package variants when migrating to larger memory or I/O requirements in MKL15Z32VFM4R-based designs.
MKL15Z32VFM4R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- Kinetis KL1
- 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, LINbus, SPI, TSI, 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 9x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
MKL15Z32VFM4R FAQ
1.How can I place an order for MKL15Z32VFM4R through Aetrix?
Please submit a Request for Quotation (RFQ) for MKL15Z32VFM4R 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 MKL15Z32VFM4R reliable?
The price and inventory of MKL15Z32VFM4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKL15Z32VFM4R is usually 5 days.
3.What payment methods are accepted for MKL15Z32VFM4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKL15Z32VFM4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKL15Z32VFM4R?
MKL15Z32VFM4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKL15Z32VFM4R 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 MKL15Z32VFM4R?
For technical support, including MKL15Z32VFM4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKL15Z32VFM4R requirements.
6.How does Aetrix verify that MKL15Z32VFM4R is sourced from the original manufacturer or authorized distributors?
All MKL15Z32VFM4R 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 MKL15Z32VFM4R meets industry standards.
7.What is the process for return or replacement of MKL15Z32VFM4R?
All MKL15Z32VFM4R units undergo pre-shipment inspection (PSI). If there is an issue with MKL15Z32VFM4R, 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 MKL15Z32VFM4R part is unused and in its original packaging.
Return procedure for MKL15Z32VFM4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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