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NXP Semiconductors MKW35A512VFP4
- Part No.:
- MKW35A512VFP4
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MKW35A512VFP4.pdf
- Description:
- IC RF TXRX+MCU BLE 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:488
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Product details
Overview
MKW35A512VFP4 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 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 MKW35A512VFP4 datasheet, MKW35A512VFP4 pinout, MKW35A512VFP4 application, or MKW35A512VFP4 equivalent, this page delivers verified technical context, exact package mapping (40-pin "Wettable" HVQFN, 6×6 mm), confirmed low-power modes (VLLS0 @ 258 nA), BLE 5.0 link-layer hardware support, and real-world alternative part comparisons for automotive embedded design.
Technical Context
The MKW35A512VFP4 integrates a Bluetooth LE 5.0-compliant radio with hardware-accelerated link layer, supporting 1 Mbps PHY and up to 8 concurrent master/slave connections. Its RF subsystem includes on-chip balun, single-ended bidirectional RF port, and programmable output power (–30 dBm to +5 dBm).
It features a 48 MHz Arm Cortex-M0+ CPU with 512 KB ECC-protected flash and 64 KB SRAM, nine low-power modes including VLLS0 (258 nA), DC-DC buck converter, and full peripheral set - but excludes FlexCAN and second LPUART found only in KW36A variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, 48 MHz - enables deterministic real-time BLE stack execution with low cycle-per-instruction overhead |
| Flash / SRAM | 512 KB program flash + 64 KB SRAM - supports full BLE 5.0 host stack, application code, and OTA firmware updates without external memory |
| BLE Performance | –95 dBm sensitivity @ 1 Mbps, 8 hardware connections - ensures robust link budget and multi-device coexistence in dense RF environments |
| Power Consumption | VLLS0 current = 258 nA; Rx = 6.3 mA (DC-DC buck, 3.6 V) - enables >10-year battery life in coin-cell-powered automotive sensors |
| Operating Range | 1.71–3.6 V supply, –40 to +105 °C - meets automotive under-hood and cabin environmental requirements |
| Radio Modes | BLE 5.0 + Generic FSK (250/500/1000 kbps) - provides dual-standard flexibility for proprietary protocols alongside certified BLE |
| Security | AES-128 hardware accelerator + TRNG + 80-bit UID - enables secure pairing, encrypted OTA updates, and device identity binding |
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 | Independent 1.71–3.6 V inputs enable noise isolation between analog peripherals and digital logic |
| VDD_RF1, VDD_RF2, VDD_RF3 | RF subsystem supplies | Dedicated 1.5–3.6 V rails ensure stable transceiver operation during peak Tx/Rx current bursts |
| RF_IN_OUT | Single-ended RF I/O | Integrated balun eliminates external matching network - reduces BOM count and board area by ≥3 components |
| XTAL32K | 32.768 kHz crystal input | Enables precise BLE advertising interval timing and RTC wake-up in deep-sleep modes |
| SWD_DIO / SWD_CLK | Serial Wire Debug interface | Two-pin debug access supports in-circuit programming and trace without dedicated JTAG header |
| PTE0–PTE7, PTB0–PTB7, PTA0–PTA7 | GPIO banks | 18 total GPIO pins in 40-pin package - sufficient for sensor interfaces, LED control, and LIN-compatible LPUART signaling |
Key Features
| Feature | Design Value |
|---|---|
| BLE 5.0 Link Layer Hardware | Offloads connection management, encryption, and packet scheduling from CPU - reduces active time and extends battery life |
| DC-DC Buck Converter | Reduces peak Rx/Tx current to 6.3/5.7 mA at 3.6 V - enables direct operation from single Li-ion or CR2032 cells |
| VLLS0 Low-Power Mode | 258 nA retention current with RAM + RTC active - maintains state across ignition cycles without external backup power |
| On-Chip Balun + Single RF Port | Eliminates external balun, matching capacitors, and RF switch - cuts RF BOM cost and layout complexity |
| AES-128 + TRNG Hardware | Accelerates LE Secure Connections pairing and encrypted OTA updates - prevents firmware cloning and MITM attacks |
Applications
| Digital Key FOB Replacement | Wireless Tire Pressure Sensor |
|---|---|
Use Scenario: Smartphone-based vehicle unlock and personalization via BLE proximity detection. IC Role / Device Role / Timing Role: Standalone BLE SoC handling secure pairing, encrypted advertising, and real-time distance estimation using RSSI and AoA extensions. Use Value: Eliminates mechanical key fobs; leverages MKW35A512VFP4's –95 dBm sensitivity and VLLS0 mode for multi-year battery life without compromising response latency. | Use Scenario: Battery-powered TPMS node transmitting pressure, temperature, and acceleration data every 30 seconds. IC Role / Device Role / Timing Role: Integrated MCU + radio executing sensor fusion, BLE advertising, and low-duty-cycle wake-up using RTC-triggered LPTMR. Use Value: Achieves >7-year operation on CR2032 via MKW35A512VFP4's 258 nA VLLS0 and 6.3 mA Rx current - no external PMIC required. |
| Automotive Cabin Air Quality Monitor | Secure OTA Firmware Update Node |
Use Scenario: In-cabin CO₂, VOC, and humidity sensing with BLE reporting to infotainment system. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC readings, running local calibration algorithms, and broadcasting BLE GATT services. Use Value: Uses MKW35A512VFP4's 16-bit ADC (500 kSPS), internal VREF, and 64 KB SRAM to process raw sensor data onboard - avoids host MCU dependency. | Use Scenario: Over-the-air firmware patching of ECU modules using signed, encrypted images delivered via BLE. IC Role / Device Role / Timing Role: Secure bootloader verifying AES-128-CMAC signatures and decrypting payloads using hardware TRNG and AESA engine. Use Value: Prevents unauthorized firmware injection via MKW35A512VFP4's flash security, 80-bit UID binding, and hardware-accelerated crypto - meets UNECE R156 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Bluetooth LE wireless microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKW36A512VFP4 | Includes FlexCAN module and second LPUART; identical 40-pin HVQFN package and 512 KB flash | Required for CAN FD gateway functions or LIN+UART dual-serial use cases | Select MKW36A512VFP4 when CAN bus integration or redundant UART is needed; otherwise MKW35A512VFP4 reduces cost and attack surface |
| DA14695-00000FX | ARM Cortex-M33 core, 2.4 GHz BLE 5.2, 960 KB flash, no automotive qualification | Targeted at consumer IoT; lacks AEC Q100 Grade 2 and extended temperature range | Choose DA14695-00000FX for non-automotive BLE applications requiring higher compute headroom and newer BLE features |
Compared with MKW36A512VFP4, MKW35A512VFP4 removes FlexCAN and second UART while retaining identical RF performance, power efficiency, and automotive qualification - making it optimal for cost-sensitive, BLE-only automotive nodes. Versus DA14695-00000FX, MKW35A512VFP4 trades newer BLE version and larger flash for guaranteed automotive reliability and lower system-level validation effort.
Availability
MKW35A512VFP4 is available at Aetrix Electronics and suitable for automotive digital key systems, wireless tire pressure monitoring, and secure OTA firmware update nodes requiring stable component supply across extended product lifecycles.
Supply support for MKW35A512VFP4 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 wireless MCUs and automotive-grade silicon.
The KW35A product line delivers AEC Q100 Grade 2 qualified, ultra-low-power Bluetooth LE 5.0 SoCs optimized for automotive wireless sensor nodes, digital key systems, and secure firmware distribution - prioritizing long battery life, functional safety readiness, and RF robustness.
FAQ
What is the maximum number of simultaneous Bluetooth LE connections supported by MKW35A512VFP4?
MKW35A512VFP4 supports up to 8 simultaneous hardware Bluetooth LE connections in any master/slave combination, enabled by its dedicated BLE link-layer hardware. This capability is confirmed in the MKW36A/35A/34A Data Sheet Rev. 9 and applies identically to MKW35A512VFP4 as part of the KW35A family. The hardware connection limit ensures deterministic timing and low CPU overhead during multi-device interaction scenarios.
Does MKW35A512VFP4 include CAN FD support?
No, MKW35A512VFP4 does not include CAN FD support. The FlexCAN module with CAN FD capability is exclusive to the KW36A variant (e.g., MKW36A512VFP4). MKW35A512VFP4 omits this peripheral entirely, as confirmed in the Orderable Parts table and Feature Descriptions section of the datasheet. This makes MKW35A512VFP4 appropriate for BLE-only automotive nodes where CAN integration is handled externally.
What package type and dimensions does MKW35A512VFP4 use?
MKW35A512VFP4 uses a 40-pin "Wettable" HVQFN package measuring 6×6 mm with 0.5 mm pitch, as specified in the Orderable Parts table and Package Drawing 98ASA01025D1. This package supports automated optical inspection (AOI) due to exposed solder pads on all four sides, and is distinct from the 48-pin variants used by MKW36A/34A devices.
What is the minimum supply voltage for MKW35A512VFP4 in VLLS0 mode?
MKW35A512VFP4 operates in VLLS0 mode down to 1.71 V, as defined in the "Voltage and current operating requirements" section (6.2.1) of the datasheet. At this voltage, it maintains 258 nA current draw with RTC and SRAM retention - enabling reliable operation across the full automotive cold-crank voltage profile without brownout reset.
Is MKW35A512VFP4 qualified for automotive applications?
Yes, MKW35A512VFP4 is AEC Q100 Grade 2 qualified, rated for ambient temperatures from –40 °C to +105 °C, and designed specifically for automotive embedded systems including digital key, TPMS, and cabin sensors. This qualification is explicitly stated in the Introduction and Operating Characteristics sections of the MKW36A/35A/34A Data Sheet Rev. 9.
MKW35A512VFP4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- Kinetis KW35A
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tray
- 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)
MKW35A512VFP4 FAQ
1.How can I place an order for MKW35A512VFP4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MKW35A512VFP4 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 MKW35A512VFP4 reliable?
The price and inventory of MKW35A512VFP4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MKW35A512VFP4 is usually 5 days.
3.What payment methods are accepted for MKW35A512VFP4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MKW35A512VFP4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MKW35A512VFP4?
MKW35A512VFP4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MKW35A512VFP4 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 MKW35A512VFP4?
For technical support, including MKW35A512VFP4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MKW35A512VFP4 requirements.
6.How does Aetrix verify that MKW35A512VFP4 is sourced from the original manufacturer or authorized distributors?
All MKW35A512VFP4 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 MKW35A512VFP4 meets industry standards.
7.What is the process for return or replacement of MKW35A512VFP4?
All MKW35A512VFP4 units undergo pre-shipment inspection (PSI). If there is an issue with MKW35A512VFP4, 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 MKW35A512VFP4 part is unused and in its original packaging.
Return procedure for MKW35A512VFP4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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