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NXP Semiconductors MKW35A512VFP4R
- Part No.:
- MKW35A512VFP4R
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MKW35A512VFP4R.pdf
- Description:
- IC RF TXRX+MCU BLE 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,594
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Product details
Overview
MKW35A512VFP4R from NXP Semiconductors is an ultra-low-power, AEC Q100 Grade 2 qualified Bluetooth® Low Energy 5.0 wireless microcontroller featuring a 48 MHz Arm® Cortex®-M0+ core, 512 KB on-chip flash memory, 64 KB SRAM, and integrated 2.4 GHz radio supporting up to 8 simultaneous BLE connections - deployed in automotive digital key, wireless sensor, and secure firmware update systems.
For engineers reviewing the MKW35A512VFP4R datasheet, MKW35A512VFP4R pinout, MKW35A512VFP4R application, or MKW35A512VFP4R equivalent, this page delivers verified technical context, exact package mapping (40-pin "Wettable" HVQFN, 6×6 mm), confirmed RF sensitivity (–95 dBm @ BLE 1 Mbps), DC-DC buck-mode current (6.3 mA Rx), and automotive-grade operating range (–40 to 105 °C).
Technical Context
The MKW35A512VFP4R implements a dual-clock radio subsystem with support for both 26 MHz and 32 MHz crystals, enabling Bluetooth LE 5.0 Link Layer hardware acceleration and Generic FSK modulation at 250/500/1000 kbps. Its transceiver integrates an on-chip balun and single-ended bidirectional RF port, minimizing external component count.
System-level power optimization is achieved via nine low-power modes including VLLS0 (258 nA), a configurable DC-DC converter (buck/bypass), and hardware-accelerated AES-128 encryption with TRNG. Unlike KW36A, MKW35A omits FlexCAN and second LPUART, confirming its role as a cost-optimized BLE-only wireless MCU for non-CAN automotive edge nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm® Cortex®-M0+, up to 48 MHz - enables real-time BLE stack execution with deterministic latency |
| Flash / SRAM | 512 KB program flash + 64 KB SRAM - supports full BLE 5.0 host + controller stack plus application logic |
| BLE Performance | –95 dBm sensitivity @ 1 Mbps; –99 dBm @ 250 kbps GFSK - ensures robust link budget in noisy automotive environments |
| Power Consumption | 6.3 mA typical Rx current (DC-DC buck mode); 258 nA VLLS0 - enables >10-year coin-cell operation in wake-on-RF sensor nodes |
| Operating Range | 1.71–3.6 V supply; –40 to 105 °C ambient - meets AEC Q100 Grade 2 requirements for under-hood and cabin applications |
| Radio Modes | Bluetooth LE 5.0 compliant + Generic FSK (250/500/1000 kbps) - supports both certified wireless connectivity and proprietary medical/industrial protocols |
| Security | AES-128 hardware accelerator + TRNG + 80-bit unique ID - enables secure over-the-air (OTA) firmware updates and device authentication |
Pinout & Package
Package: 40-pin "Wettable" HVQFN, 6×6 mm, 0.5 mm pitch - optimized for automated optical inspection (AOI) and high-yield reflow in automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_0, VDD_1, VDDA | Analog & digital supply rails | Support independent noise isolation for ADC and core logic; require local 100 nF decoupling per rail |
| VSS_0, VSS_1, VSSA | Analog & digital ground returns | Must be connected to solid ground plane; separate analog/digital ground stitching required at single point |
| RF_IN/OUT | Single-ended bidirectional RF port | Connects directly to PCB antenna or matching network; uses internal balun - no external balun needed |
| XTAL32K | 32.768 kHz crystal input | Enables precise RTC timing and BLE sleep clock accuracy during deep-sleep modes |
| SWD_DIO / SWD_CLK | Serial Wire Debug interface | Two-pin debug path supporting programming, trace, and real-time register inspection without halting BLE operation |
| GPIO_0–GPIO_17 | Configurable digital I/O | 18 total GPIOs in 40-pin package - sufficient for button sensing, LED control, and sensor interfacing in compact modules |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DC-DC Buck Converter | Reduces peak Rx current to 6.3 mA at 3.6 V - extends battery life by >3× vs linear regulator in coin-cell applications |
| Hardware AES-128 + TRNG | Enables authenticated, encrypted BLE pairing and OTA updates without CPU overhead - critical for automotive security compliance |
| On-chip Balun + Single-Ended RF Port | Eliminates need for external balun and matching components - reduces BOM cost and PCB area by ≥30% in reference designs |
| VLLS0 Low-Power Mode (258 nA) | Allows wake-on-RF event detection while drawing sub-μA current - ideal for passive entry systems requiring instant response |
| 16-bit ADC with Temp Sensor | Provides direct battery voltage monitoring and ambient temperature measurement - enables runtime health diagnostics without external sensors |
Applications
| Digital Key FOB Replacement | Wireless Tire Pressure Monitor (TPMS) |
|---|---|
Use Scenario: Smartphone-based vehicle unlock and personalization using BLE proximity detection. IC Role / Device Role / Timing Role: Standalone BLE SoC handling link layer, host stack, cryptographic key management, and RF timing synchronization. Use Value: Leverages VLLS0 mode (258 nA) and wake-on-RF to achieve <1 μA average current - enabling 5+ year operation on CR2032. | Use Scenario: Battery-powered sensor node measuring pressure, temperature, and acceleration inside rotating tire assemblies. IC Role / Device Role / Timing Role: Integrated MCU + BLE transceiver performing sensor acquisition, data formatting, and secure advertising packet transmission. Use Value: On-chip 16-bit ADC and temperature sensor eliminate external signal conditioning; –95 dBm sensitivity ensures reliable 10+ meter range despite metal enclosure attenuation. |
| Automotive Cabin Air Quality Sensor | Secure Firmware Update Node |
Use Scenario: Wireless CO₂, VOC, and humidity monitoring in HVAC ducts with periodic BLE broadcast to gateway. IC Role / Device Role / Timing Role: Low-power sensor hub aggregating analog inputs, running BLE advertisement-only stack, and managing sleep/wake cycles. Use Value: DC-DC buck mode (6.3 mA Rx) and 9 low-power modes allow adaptive duty cycling - achieving >3-year battery life at 1-min reporting interval. | Use Scenario: Over-the-air (OTA) firmware update endpoint in ECU or infotainment module requiring cryptographic integrity verification. IC Role / Device Role / Timing Role: Secure bootloader executing AES-128 decryption and signature validation using hardware TRNG and unique chip ID. Use Value: Hardware-accelerated AES prevents timing side-channel attacks; 80-bit unique ID enables per-device key binding - satisfying UNECE R156 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth LE wireless MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKW35A512VFT4 | 48-pin "Wettable" HVQFN (7×7 mm); adds 7 GPIOs and 2 more ADC channels vs VFP4R | Suitable for designs needing higher I/O count or additional analog sensing capability | Select when board layout allows larger package and extra peripherals are required |
| MKW36A512VFP4 | Same 40-pin package but includes FlexCAN module and second LPUART; higher BOM cost | Required for CAN FD gateway functions or LIN bus bridging in vehicle networks | Choose only if CAN FD or dual UART functionality is mandatory - otherwise MKW35A512VFP4R offers better cost/power trade-off |
Compared with MKW35A512VFP4R, MKW35A512VFT4 provides expanded I/O in a larger footprint, while MKW36A512VFP4 adds automotive network interfaces at the expense of higher power and cost - making MKW35A512VFP4R the optimal choice for pure BLE sensor nodes where size, cost, and ultra-low power are primary constraints.
Availability
MKW35A512VFP4R is available at Aetrix Electronics and suitable for automotive digital key systems, wireless TPMS, cabin air quality monitors, and secure OTA update nodes requiring stable component supply across extended production lifecycles.
Supply support for MKW35A512VFP4R 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in wireless MCUs and automotive qualification.
The MKW35A series belongs to NXP's Kinetis W-family of AEC Q100 Grade 2 wireless MCUs, designed specifically for battery-operated automotive edge nodes requiring certified BLE 5.0 connectivity, cryptographic security, and extreme power efficiency.
FAQ
What is the maximum Bluetooth LE connection count supported by MKW35A512VFP4R?
MKW35A512VFP4R supports up to 8 simultaneous Bluetooth LE hardware connections in any master/slave combination, as defined in the Bluetooth LE 5.0 Link Layer hardware implementation. This capability is confirmed in the official MKW36A/35A/34A Data Sheet Rev. 9 and applies identically to MKW35A512VFP4R due to shared radio architecture and silicon revision.
Does MKW35A512VFP4R include CAN FD support?
No, MKW35A512VFP4R does not include FlexCAN or CAN FD support. The orderable parts table explicitly lists "N" for CAN FD under MKW35A512VFP4, distinguishing it from MKW36A variants. CAN FD functionality is exclusive to the KW36A family; MKW35A512VFP4R is optimized as a BLE-only wireless MCU for cost-sensitive automotive sensor applications.
What is the RF output power range of MKW35A512VFP4R?
MKW35A512VFP4R features programmable transmitter output power from –30 dBm to +5 dBm, adjustable in fine steps via register configuration. This range is documented in Section 2.2 (Radio features) and Section 4.3 (Transmit and PLL Feature Summary) of the MKW36A/35A/34A Data Sheet Rev. 9, and is identical across all members of the KW35A family including MKW35A512VFP4R.
Which crystal frequencies are supported for Bluetooth LE operation on MKW35A512VFP4R?
MKW35A512VFP4R supports both 26 MHz and 32 MHz crystal oscillators for Bluetooth LE and Generic FSK modes, as specified in Section 2.2 and Section 2.4 of the MKW36A/35A/34A Data Sheet Rev. 9. The 32.768 kHz crystal is used exclusively for RTC and low-power timing - it is not used for BLE radio operation.
Is MKW35A512VFP4R qualified for automotive use?
Yes, MKW35A512VFP4R is AEC Q100 Grade 2 qualified, with an operating ambient temperature range of –40 to 105 °C and full compliance with automotive reliability and stress testing requirements. This qualification is explicitly stated in the Introduction section and Orderable Parts table of the MKW36A/35A/34A Data Sheet Rev. 9.
MKW35A512VFP4R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- Kinetis KW35A
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v5.0
- Modulation:
- FSK, GFSK, MSK
- Frequency:
- 2.4GHz
- Data Rate (Max):
- 1Mbps
- Power - Output:
- 5dBm
- Sensitivity:
- -95dBm
- Memory Size:
- 512kB Flash, 64kB RAM
- Serial Interfaces:
- I2C, SPI, UART
- GPIO:
- -
- Voltage - Supply:
- 1.71V ~ 3.6V
- Current - Receiving:
- 6.3mA
- Current - Transmitting:
- 5.7mA
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 40-HVQFN (6x6)
MKW35A512VFP4R FAQ
1.How can I place an order for MKW35A512VFP4R through Aetrix?
Please submit a Request for Quotation (RFQ) for MKW35A512VFP4R 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 MKW35A512VFP4R reliable?
The price and inventory of MKW35A512VFP4R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKW35A512VFP4R is usually 5 days.
3.What payment methods are accepted for MKW35A512VFP4R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKW35A512VFP4R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKW35A512VFP4R?
MKW35A512VFP4R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKW35A512VFP4R 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 MKW35A512VFP4R?
For technical support, including MKW35A512VFP4R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKW35A512VFP4R requirements.
6.How does Aetrix verify that MKW35A512VFP4R is sourced from the original manufacturer or authorized distributors?
All MKW35A512VFP4R 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 MKW35A512VFP4R meets industry standards.
7.What is the process for return or replacement of MKW35A512VFP4R?
All MKW35A512VFP4R units undergo pre-shipment inspection (PSI). If there is an issue with MKW35A512VFP4R, 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 MKW35A512VFP4R part is unused and in its original packaging.
Return procedure for MKW35A512VFP4R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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