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NXP Semiconductors MKW39A512VFT4R
- Part No.:
- MKW39A512VFT4R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MKW39A512VFT4R.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,229
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Product details
Overview
MKW39A512VFT4R from NXP Semiconductors is an ultra-low-power Bluetooth® Low Energy 5.0 wireless microcontroller integrating an Arm® Cortex®-M0+ core (up to 48 MHz), 512 KB flash, 64 KB SRAM, and a 2.4 GHz multi-standard radio supporting BLE 5.0 (including 2M PHY, Long Range, Advertising Extensions) and Generic FSK. It delivers –105 dBm receiver sensitivity at 125 kbit/s LR mode, operates from 1.71–3.6 V, and targets automotive digital key and industrial sensor node applications.
For engineers reviewing the MKW39A512VFT4R datasheet, MKW39A512VFT4R pinout, MKW39A512VFT4R application, or MKW39A512VFT4R equivalent, key selection criteria include AEC-Q100 Grade 2 qualification, BLE 5.0 long-range performance, integrated DC-DC converter enabling coin-cell operation, and 48-pin HVQFN package with wettable flanks for automated optical inspection.
Technical Context
The MKW39A512VFT4R implements a dual-oscillator timing architecture: 26/32 MHz crystals for BLE/FSK radio operation and a 32.768 kHz crystal for RTC and low-power timing. Its radio subsystem includes hardware-accelerated AES-128, TRNG, and on-chip balun with single-ended RF port-enabling minimal external components.
Power management integrates a configurable DC-DC buck converter (supporting 2.1–3.6 V input) and nine low-power modes, including VLLS0 at 266.6 nA. The MCU features three TPM modules (one 4-channel, two 2-channel), dual SPI/I²C, one LPUART with LIN support, 16-bit ADC, and FlexRAM for EEPROM emulation-all accessible in low-power states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, up to 48 MHz - enables real-time BLE stack execution with low cycle count overhead |
| Memory | 512 KB flash + 64 KB SRAM + 8 KB FlexRAM - supports full BLE 5.0 host/controller stack plus application firmware and EEPROM emulation |
| BLE Radio | BLE 5.0 compliant with 2M PHY, Long Range (125/500 kbit/s), Advertising Extensions - enables high-throughput firmware updates and extended indoor range |
| Receiver Sensitivity | –105 dBm @ 125 kbit/s LR - achieves >150 m line-of-sight range in typical automotive cabin environments |
| Supply Voltage | 1.71–3.6 V - compatible with single Li-ion, coin cell, or regulated 3.3 V rails without level-shifting |
| Low-Power Mode | VLLS0 current = 266.6 nA - allows multi-year battery life in periodic wake-up sensor applications |
| Qualification | AEC-Q100 Grade 2 (–40 to 105 °C) - certified for under-hood and dashboard automotive deployment |
Pinout & Package
Package: 48-pin "Wettable" HVQFN, 7×7 mm, 0.5 mm pitch - supports AOI-compatible solder joint inspection and high-density PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_0, VDD_1, VDDA | Analog & digital supply | 1.71–3.6 V input; separate analog rail ensures ADC accuracy during RF transmission |
| VDD_RF1, VDD_RF2, VDD_RF3 | RF power domains | Independent 1.5–3.6 V supplies for transceiver blocks; decoupling critical for EMI compliance |
| RF_IN/OUT | Single-ended RF port | Integrated balun eliminates external matching network; direct connection to antenna or PA/LNA |
| XTAL1/XTAL2 (26/32 MHz) | Radio reference clock | Crystal termination required per spec; determines BLE timing accuracy and frequency stability |
| RTC_XTAL1/RTC_XTAL2 (32.768 kHz) | Low-power timing reference | Enables precise BLE advertising interval timing and RTC wake-up during VLLS0 mode |
| SWD_DIO/SWD_CLK | Debug interface | Two-wire Serial Wire Debug - enables in-circuit programming and trace without dedicated JTAG pins |
Key Features
| Feature | Design Value |
|---|---|
| BLE 5.0 Long Range PHY | Hardware-coded 125/500 kbit/s modes with –105 dBm sensitivity - extends operational range without increasing transmit power or antenna size |
| Integrated DC-DC Buck Converter | Reduces Rx current to 6.3 mA and Tx to 5.7 mA at 3.6 V - enables >10-year battery life on CR2032 in beacon applications |
| Hardware Security Engine | AES-128 accelerator + TRNG + 80-bit unique ID - provides cryptographic primitives for LE Secure Connections and firmware authentication |
| Automotive Qualification | AEC-Q100 Grade 2 - validated for sustained operation at 105 °C ambient, meeting automotive ECU reliability requirements |
| Wettable Flank HVQFN | 48-pin 7×7 mm package with exposed thermal pad and side-wettable leads - ensures solder joint reliability and automated optical inspection capability |
Applications
| Digital Key System | Industrial Wireless Sensor Node |
|---|---|
Use Scenario: Smartphone-based vehicle access where BLE proximity detection unlocks doors and personalizes seat/mirror settings. IC Role / Device Role / Timing Role: Standalone BLE 5.0 modem and security anchor - handles pairing, encrypted key exchange, and secure boot verification. Use Value: Leverages –105 dBm LR sensitivity and AEC-Q100 Grade 2 rating to maintain reliable link through car body metal attenuation and temperature extremes. | Use Scenario: Battery-powered vibration/temperature monitor in factory machinery reporting to gateway via BLE mesh. IC Role / Device Role / Timing Role: Autonomous sensor hub - acquires data via 16-bit ADC, processes locally, and transmits only on threshold breach using VLLS0 wake-up. Use Value: 266.6 nA VLLS0 current and integrated DC-DC enable 7+ year CR2032 operation while maintaining BLE 5.0 advertising interval accuracy. |
| Medical Asset Tracking | Smart Building Occupancy Sensor |
Use Scenario: Reusable BLE tag attached to infusion pumps or defibrillators, broadcasting location and status to hospital RTLS infrastructure. IC Role / Device Role / Timing Role: BLE beacon with MAC address privacy - uses hardware-resolved private addresses and advertising extensions for dense deployment. Use Value: Hardware whitelisting for 26 devices and 8 private resolvable addresses prevents interference in high-density clinical environments. | Use Scenario: Ceiling-mounted PIR + ambient light sensor detecting occupancy and adjusting HVAC/lighting via BLE to building BMS. IC Role / Device Role / Timing Role: Ultra-low-power edge controller - wakes on motion, samples sensors, computes occupancy state, and transmits via BLE 2M PHY. Use Value: 48 MHz Cortex-M0+ and DMA-accelerated ADC enable real-time sensor fusion without waking main CPU, minimizing active time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth Low Energy wireless microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NRF52840-QIAA | ARM Cortex-M4F core, 1 MB flash, no AEC-Q100 qualification, higher Rx sensitivity (–103 dBm @ 1 Mbit/s) but no LR mode below 500 kbit/s | Targets consumer IoT and PC peripherals; lacks automotive temperature range and qualification | Select when higher compute headroom and USB support are needed over automotive compliance |
| CC2642R1F | ARM Cortex-M4F, 352 KB flash, AEC-Q100 Grade 2 qualified, supports BLE 5.0 LR but with –102.5 dBm @ 125 kbit/s (3 dB less sensitive than MKW39A512VFT4R) | Validated for automotive infotainment and telematics; requires external balun and more RF components | Select when TI ecosystem toolchain preference or integrated power amplifier support is prioritized |
Compared with NRF52840-QIAA and CC2642R1F, MKW39A512VFT4R offers superior long-range sensitivity (–105 dBm), integrated balun reducing BOM count, and native AEC-Q100 Grade 2 qualification - making it optimal for cost-sensitive, space-constrained automotive digital key and industrial sensor designs requiring guaranteed automotive reliability.
Availability
MKW39A512VFT4R is available at Aetrix Electronics and suitable for automotive digital key systems, industrial wireless sensor nodes, medical asset tracking, and smart building occupancy monitoring requiring stable component supply across extended product lifecycles.
Supply support for MKW39A512VFT4R 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with leadership in ARM-based microcontrollers and wireless SoCs.
The MKW39A512VFT4R belongs to NXP's Kinetis KW39 wireless MCU family, designed specifically for ultra-low-power, AEC-Q100-compliant Bluetooth LE 5.0 applications in automotive access and industrial sensing.
FAQ
What is the maximum BLE 5.0 transmit power supported by MKW39A512VFT4R?
MKW39A512VFT4R supports programmable transmitter output power from –30 dBm to +5 dBm. This 35 dB dynamic range enables precise RF link budget tuning for different antenna configurations and regulatory regions. The +5 dBm maximum output is achievable with internal PA and meets FCC/ETSI conducted power limits when paired with appropriate filtering and matching networks per the reference design.
Does MKW39A512VFT4R include hardware support for BLE Secure Connections?
Yes, MKW39A512VFT4R includes dedicated hardware acceleration for AES-128 encryption and a True Random Number Generator (TRNG), both required for BLE Secure Connections pairing. These modules operate independently of the Cortex-M0+ core, enabling secure key generation and encryption without CPU intervention - reducing latency and power consumption during pairing events in MKW39A512VFT4R-based systems.
Can MKW39A512VFT4R operate from a single CR2032 coin cell battery?
Yes, MKW39A512VFT4R can operate from a single CR2032 coin cell (nominal 3.0 V) using its integrated DC-DC buck converter. With VLLS0 current at 266.6 nA and typical BLE advertising current of 6.3 mA (Rx) / 5.7 mA (Tx), MKW39A512VFT4R enables multi-year operation in periodic beacon applications - validated in NXP reference designs using standard CR2032 cells without external regulators.
What is the function of the "wettable" flank feature in the MKW39A512VFT4R HVQFN package?
The "wettable" flank feature in MKW39A512VFT4R's 48-pin HVQFN package exposes vertical sidewalls of each lead, enabling automated optical inspection (AOI) of solder fillet quality after reflow. This improves manufacturing yield and field reliability in automotive and industrial production, where zero-defect solder joints are mandatory - unlike standard QFN packages that hide solder interfaces beneath the body.
Is MKW39A512VFT4R pin-compatible with other KW39/38/37 family members?
MKW39A512VFT4R shares the same 48-pin HVQFN package and pinout with MKW38A512VFT4 and MKW37A512VFT4, as confirmed in Section 7.3 of the official datasheet. However, functional differences exist: MKW39A512VFT4R omits FlexCAN (present on KW38) and second LPUART (present on KW38), so pin multiplexing must be verified per application - MKW39A512VFT4R is not a drop-in replacement for KW38 in CAN-based designs.
MKW39A512VFT4R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- Kinetis KW3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LVD, POR, PWM, WDT
- Number of I/O:
- -
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
MKW39A512VFT4R FAQ
1.How can I place an order for MKW39A512VFT4R through Aetrix?
Please submit a Request for Quotation (RFQ) for MKW39A512VFT4R 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 MKW39A512VFT4R reliable?
The price and inventory of MKW39A512VFT4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKW39A512VFT4R is usually 5 days.
3.What payment methods are accepted for MKW39A512VFT4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKW39A512VFT4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKW39A512VFT4R?
MKW39A512VFT4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKW39A512VFT4R 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 MKW39A512VFT4R?
For technical support, including MKW39A512VFT4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKW39A512VFT4R requirements.
6.How does Aetrix verify that MKW39A512VFT4R is sourced from the original manufacturer or authorized distributors?
All MKW39A512VFT4R 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 MKW39A512VFT4R meets industry standards.
7.What is the process for return or replacement of MKW39A512VFT4R?
All MKW39A512VFT4R units undergo pre-shipment inspection (PSI). If there is an issue with MKW39A512VFT4R, 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 MKW39A512VFT4R part is unused and in its original packaging.
Return procedure for MKW39A512VFT4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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