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NXP Semiconductors KW45Z41083AFTBR
- Part No.:
- KW45Z41083AFTBR
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
KW45Z41083AFTBR.pdf
- Description:
- IC RF TXRX+MCU BLE 48HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,834
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Product details
Overview
KW45Z41083AFTBR from NXP Semiconductors is a secure, automotive-grade wireless MCU integrating an Arm Cortex-M33 core (96 MHz), 1 MB flash / 128 KB SRAM, FlexCAN supporting CAN FD (ISO 11898-1), and Bluetooth LE 5.3 radio subsystem - deployed in Passive Entry/Passive Start (PEPS) systems requiring AEC-Q100 Grade 2 qualification and extended temperature operation up to +105 °C.
For engineers reviewing the KW45Z41083AFTBR datasheet, KW45Z41083AFTBR pinout, KW45Z41083AFTBR application, or KW45Z41083AFTBR equivalent, key selection considerations include CAN FD interface compliance, EdgeLock™ Secure Enclave support for hardware-accelerated AES/ECC/SHA, TrustZone-M isolation, ultra-low power modes (<3 μA in power-down with RTC active), and 48-pin HVQFN wettable flank packaging for automotive PCB reliability.
Technical Context
The KW45Z41083AFTBR implements a dual-core architecture: a primary Arm Cortex-M33 application core (96 MHz, TrustZone-M, 8 KB code cache, IEEE 754 FPU) and a dedicated CM3 radio controller core (64 MHz) managing BLE 5.3 link layer operations. It integrates FlexCAN with full CAN FD support per ISO 11898-1, including bit-rate switching and payload extension up to 64 bytes.
Security is enforced via EdgeLock™ Secure Enclave with hardware crypto accelerators (AES-128/192/256, ECC P-192–521, SHA2-224/256/384/512), TRDC-based resource domain control, PRINCE on-the-fly flash encryption, and secure boot ROM. Power management includes DC/DC regulator (1.8–3.6 V), Core/SYS LDOs, and Smart Power Switch (<100 nA sleep current).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M33 @ 96 MHz with TrustZone-M, FPU, MPU, and 8 KB instruction cache |
| Memory | 1 MB embedded flash (PRINCE-encrypted option) + 128 KB SRAM with ECC |
| Wireless | Bluetooth LE 5.3 radio with –106 dBm sensitivity @ 125 kbps, +10 dBm TX output, 24 simultaneous connections |
| CAN Interface | FlexCAN supporting CAN FD (ISO 11898-1), bit-rate switching, 64-byte payloads, AEC-Q100 Grade 2 qualified |
| Security | EdgeLock™ Secure Enclave with hardware AES/ECC/SHA accelerators, TRDC, secure debug, factory Root of Trust |
| Power Modes | <3 μA power-down (RTC + 32 KB SRAM retention); <1.5 μA deep power-down; 300 nA timer/GPIO-wakeup mode |
| Operating Temp | –40 °C to +105 °C ambient (AEC-Q100 Grade 2), junction up to +125 °C |
Pinout & Package
Package: 48-pin HVQFN (7 × 7 × 0.85 mm), 0.5 mm pitch, wettable flanks - optimized for automotive reflow inspection and thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO_ABC | Digital I/O supply rail | 1.71–3.6 V input powering Ports A/B/C, Flash, and comparators; supports level-shifted GPIO operation |
| VDD_CORE | Core logic supply | 1.0–1.21 V regulated input for Cortex-M33 core and internal digital domains |
| CAN_H / CAN_L | CAN FD differential bus interface | Direct connection to external CAN transceiver; compliant with ISO 11898-1 physical layer requirements |
| RF_IN / RF_OUT | 2.4 GHz RF port | Single-ended bidirectional RF path with integrated balun; requires no external matching for basic antenna integration |
| SWD_DIO / SWD_CLK | ARM Serial Wire Debug interface | Secure debug access with optional lockout via EdgeLock enclave; supports production programming and field diagnostics |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Crypto Acceleration | AES-128/192/256, ECC P-192–521, SHA2-224/256/384/512, and Poly1305 offloaded from CPU - enabling real-time OTA firmware signing/verification |
| Secure Boot & Key Management | Immutable boot ROM validates signed images; EdgeLock enclave manages key generation, storage, and lifecycle - preventing extraction even under physical attack |
| FlexCAN FD Implementation | Full CAN FD protocol stack with data phase bit-rate switching (up to 5 Mbps) and 64-byte payloads - eliminating gateway bottlenecks in vehicle ECU networks |
| Low-Power Radio Operation | 4.7 mA RX / 4.6 mA TX @ 0 dBm (DC-DC mode); supports BLE Long Range modes at –106 dBm sensitivity - extending key fob range without increasing battery drain |
| Automotive Qualification | AEC-Q100 Grade 2 certified with SRAM ECC, watchdog redundancy, clock loss detection, and voltage monitors - meeting functional safety requirements for PEPS and WBMS |
Applications
| Secure Car Access | Passive Entry/Start (PEPS) |
|---|---|
Use Scenario: Wireless authentication between vehicle and key fob during approach or cabin entry. IC Role / Device Role / Timing Role: Primary MCU executing secure challenge-response protocol, CAN FD messaging to body control module, and BLE 5.3 low-latency ranging. Use Value: Enables sub-100 ms unlock response with cryptographic verification, leveraging TrustZone-M isolation to protect keys from software exploits. | Use Scenario: Engine start authorization without physical key insertion, using proximity detection and encrypted handshake. IC Role / Device Role / Timing Role: Real-time BLE direction-finding and secure session establishment; FlexCAN FD transmits authenticated start command to engine ECU. Use Value: Meets ASIL-B timing constraints for ignition sequence; EdgeLock enclave ensures private key never leaves secure domain during handshake. |
| Wireless Battery Management (WBMS) | Industrial Positioning/Localization |
Use Scenario: Monitoring cell voltages, temperatures, and state-of-charge across EV battery packs via wireless sensor nodes. IC Role / Device Role / Timing Role: Sensor fusion MCU collecting analog data (16-bit ADC), encrypting telemetry, and transmitting over BLE 5.3 to gateway while maintaining CAN FD diagnostic channel to BMS master. Use Value: Eliminates wiring harness complexity; PRINCE flash encryption protects battery algorithms from reverse engineering. | Use Scenario: Indoor asset tracking using BLE AoA/AoD with synchronized multi-node timing in factory automation environments. IC Role / Device Role / Timing Role: Time-synchronized BLE anchor node with 56-bit timestamp timer and low-jitter 32.768 kHz RTC for precise angle-of-arrival calculation. Use Value: Achieves <1 m localization accuracy at 10 Hz update rate; LPUART with LIN capability enables hybrid wired/wireless commissioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MKW41Z64VLF4 | Legacy KW41Z family; Cortex-M0+, 64 KB flash, BLE 4.2 only, no CAN FD, no EdgeLock enclave | Limited to non-automotive BLE sensor nodes; lacks AEC-Q100 qualification and secure boot enforcement | Select only for cost-sensitive industrial BLE endpoints where CAN FD and hardware security are unnecessary |
| S32K144WHT0MLHT | Arm Cortex-M4F, 512 KB flash, CAN FD, no integrated BLE radio; requires external BLE module | Requires separate BLE SoC and RF layout; higher BOM cost and larger PCB footprint than single-chip KW45Z41083AFTBR | Choose when deterministic real-time control dominates over wireless integration, or when existing S32K software investment outweighs radio consolidation benefits |
Compared with MKW41Z64VLF4 and S32K144WHT0MLHT, KW45Z41083AFTBR uniquely combines BLE 5.3 + CAN FD + EdgeLock Secure Enclave in one AEC-Q100 Grade 2 package - reducing system-level security validation effort, eliminating external RF components, and enabling unified firmware updates across wireless and vehicle bus domains.
Availability
KW45Z41083AFTBR is available at Aetrix Electronics and suitable for automotive PEPS systems, wireless battery management systems (WBMS), and industrial BLE-CAN gateways requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.
Supply support for KW45Z41083AFTBR 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 MCUs, radar, and trusted execution environments.
KW45Z41083AFTBR belongs to the KW45 product family - designed specifically for automotive and industrial wireless edge nodes requiring concurrent BLE 5.3 and CAN FD communication, hardware-enforced security, and extended temperature resilience.
FAQ
What is the maximum operating temperature for KW45Z41083AFTBR?
KW45Z41083AFTBR is AEC-Q100 Grade 2 qualified with an ambient operating temperature range of –40 °C to +105 °C and a junction temperature limit of +125 °C. This rating is validated across all integrated peripherals including FlexCAN FD, BLE radio, and EdgeLock Secure Enclave - ensuring reliable operation in under-hood automotive environments and industrial enclosures without forced cooling.
Does KW45Z41083AFTBR support CAN FD bit-rate switching?
Yes, KW45Z41083AFTBR's FlexCAN module fully supports CAN FD bit-rate switching per ISO 11898-1, enabling separate arbitration and data phase bit rates (e.g., 1 Mbps arbitration / 5 Mbps data). The hardware implementation includes dedicated message RAM buffers, flexible data length control, and automatic CRC recalculation - allowing seamless integration into modern vehicle domain controllers without software overhead.
How does the EdgeLock Secure Enclave in KW45Z41083AFTBR protect firmware updates?
KW45Z41083AFTBR uses its EdgeLock Secure Enclave to validate and decrypt over-the-air (OTA) firmware updates via hardware-accelerated ECDSA signature verification and AES-GCM decryption. The enclave isolates keys and crypto operations from the main Cortex-M33 core, preventing runtime extraction. Signed images are decrypted on-the-fly during flash programming - ensuring confidentiality and integrity without exposing plaintext firmware in SRAM.
What power modes are available on KW45Z41083AFTBR for battery-powered automotive sensors?
KW45Z41083AFTBR offers multiple ultra-low-power modes optimized for battery operation: power-down mode draws <3 μA with RTC and 32 KB SRAM retention; deep power-down consumes <1.5 μA with RTC active; and Smart Power Switch mode achieves <100 nA sleep current with wake-up via internal timer or GPIO. All modes preserve EdgeLock enclave state and secure context across transitions.
Is KW45Z41083AFTBR pin-compatible with other KW45 family members?
KW45Z41083AFTBR uses a 48-pin HVQFN package identical to KW45B41Z83AFTBR and KW45Z41053AFTBR. Pin functions for power, reset, SWD, CAN, and critical GPIOs are consistent across these variants. However, radio-related pins (e.g., RF_IN/RF_OUT) differ between Z-series (MCU-only) and B-series (radio-included) parts - requiring board-level redesign if migrating from a B-part to KW45Z41083AFTBR.
KW45Z41083AFTBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- Kinetis KW45Z
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth
- Protocol:
- Bluetooth v5.3
- Modulation:
- FSK, GFSK, GMSK, MSK
- Frequency:
- 2.36GHz ~ 2.4835GHz
- Data Rate (Max):
- 2Mbps
- Power - Output:
- 10dBm
- Sensitivity:
- -106dBm
- Memory Size:
- 1MB Flash, 128kB RAM
- Serial Interfaces:
- GPIO, I2C, PWM, SPI, UART
- GPIO:
- -
- Voltage - Supply:
- 0.9V ~ 2.4V, 1.175V ~ 3.6V
- Current - Receiving:
- 4.1mA ~ 10.01mA
- Current - Transmitting:
- 4.6mA ~ 22.4mA
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 48-HVQFN (7x7)
KW45Z41083AFTBR FAQ
1.How can I place an order for KW45Z41083AFTBR through Aetrix?
Please submit a Request for Quotation (RFQ) for KW45Z41083AFTBR 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 KW45Z41083AFTBR reliable?
The price and inventory of KW45Z41083AFTBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KW45Z41083AFTBR is usually 5 days.
3.What payment methods are accepted for KW45Z41083AFTBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KW45Z41083AFTBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KW45Z41083AFTBR?
KW45Z41083AFTBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KW45Z41083AFTBR 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 KW45Z41083AFTBR?
For technical support, including KW45Z41083AFTBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KW45Z41083AFTBR requirements.
6.How does Aetrix verify that KW45Z41083AFTBR is sourced from the original manufacturer or authorized distributors?
All KW45Z41083AFTBR 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 KW45Z41083AFTBR meets industry standards.
7.What is the process for return or replacement of KW45Z41083AFTBR?
All KW45Z41083AFTBR units undergo pre-shipment inspection (PSI). If there is an issue with KW45Z41083AFTBR, 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 KW45Z41083AFTBR part is unused and in its original packaging.
Return procedure for KW45Z41083AFTBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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