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NXP Semiconductors KW45Z41082AFTBR
- Part No.:
- KW45Z41082AFTBR
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
KW45Z41082AFTBR.pdf
- Description:
- IC RF TXRX+MCU BLE 48HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,463
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Product details
Overview
KW45Z41082AFTBR from NXP Semiconductors is a secure, automotive-grade wireless MCU integrating an Arm Cortex-M33 core (96 MHz), 1 MB flash, 128 KB SRAM, TrustZone-M, EdgeLock™ Secure Enclave, and FlexCAN supporting CAN FD per ISO 11898-1 - deployed in Passive Entry/Passive Start (PEPS) and Wireless Battery Management Systems (WBMS).
For engineers reviewing the KW45Z41082AFTBR datasheet, KW45Z41082AFTBR pinout, KW45Z41082AFTBR application, or KW45Z41082AFTBR equivalent, this page delivers verified technical context, AEC-Q100 Grade 2 qualification status, CAN FD interface capability, low-power operation down to 300 nA, and secure boot with PRINCE encryption - all critical for automotive embedded design validation.
Technical Context
The KW45Z41082AFTBR implements a dual-domain architecture: a 96 MHz Arm Cortex-M33 application core with TrustZone-M isolation and an independent 64 MHz CM3 radio controller for BLE 5.3 protocol stack execution. It integrates FlexCAN supporting both classical CAN and CAN FD up to 5 Mbps with ISO 11898-1 compliance.
Security is enforced via EdgeLock Secure Enclave with hardware-accelerated AES-128/192/256, ECC P-256/384, SHA2-256/384, TRNG, and PRINCE on-the-fly flash decryption. Power management includes DCDC regulator (1.8–3.6 V), Core_LDO (1.2–3.6 V), SYS_LDO (1.71–3.6 V), 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, DSP, MPU, and 8 KB code cache |
| Memory | 1 MB flash (PRINCE-encrypted), 128 KB SRAM with ECC and parity error checking |
| Connectivity | FlexCAN supporting CAN FD (ISO 11898-1), two LPUARTs with LIN, two LPI2Cs, two LPSPIs, MIPI-I3C, FlexIO |
| Security | EdgeLock Secure Enclave with AES/ECDSA/SHA2/TRNG/PRINCE; secure boot ROM; factory Root of Trust |
| Power | <5.3 mA active core current at 96 MHz; <3 μA power-down mode (RTC + 32 KB SRAM); <300 nA deep sleep with GPIO/timer wake-up |
| Qualification | AEC-Q100 Grade 2 (–40 °C to +105 °C ambient), MISRA C:2012, ASPICE-compliant development process |
Pinout & Package
KW45Z41082AFTBR uses a 40-pin HVQFN package (6 × 6 × 0.85 mm, 0.5 mm pitch) with wettable flanks for enhanced solder joint inspection and reliability in automotive reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO_ABC | Digital I/O supply rail | Supplies Ports A/B/C, Flash, and analog comparators (1.71–3.6 V) |
| VDD_CORE | Core domain power | Feeds Cortex-M33 core and digital logic (1.25–3.6 V); supports bypass mode |
| VDD_SYS | System domain power | Powers PMC, EFUSE, SRTC, FRO oscillators (1.8–2.25 V normal mode) |
| CAN_H / CAN_L | FlexCAN differential bus interface | Direct connection to ISO 11898-1 compliant CAN FD transceiver; supports up to 5 Mbps |
| RF_IN / RF_OUT | RF transceiver interface | Single-ended bidirectional RF port with integrated balun; requires external matching network |
| RESET_b | Active-low reset input | Asynchronous reset signal with internal pull-up; triggers full system reset including security domains |
| SWD_DIO / SWD_CLK | Debug interface | Secure Wire Debug (SWD) pins supporting secure debug authentication and trace |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot with PRINCE Encryption | Enables on-the-fly decryption of encrypted flash contents using XEX block cipher mode, protecting firmware IP and sensitive algorithms |
| EdgeLock Secure Enclave | Hardware-isolated domain providing cryptographic acceleration (AES/ECC/SHA2), key storage, and secure debug control with tamper detection |
| FlexCAN with CAN FD Support | Full CAN FD implementation compliant with ISO 11898-1, enabling data rates up to 5 Mbps and payload sizes up to 64 bytes for automotive diagnostics and control |
| Ultra-Low-Power Smart Power Switch | Delivers <100 nA sleep current with configurable wake-up sources (GPIO, internal timer), minimizing battery drain in PEPS/WBMS applications |
| AEC-Q100 Grade 2 Qualification | Validated for automotive use across –40 °C to +105 °C ambient temperature with robust ESD (±2000 V HBM) and latch-up immunity (Class II at 125 °C junction) |
Applications
| Secure Car Access | Wireless Battery Management |
|---|---|
Use Scenario: Key fob communicates with vehicle ECU via BLE 5.3 to authenticate and unlock doors without physical button press. IC Role / Device Role / Timing Role: KW45Z41082AFTBR acts as the secure BLE endpoint with EdgeLock-enforced key storage and FlexCAN backhaul to body control module. Use Value: Enables passive entry with sub-106 dBm receive sensitivity and secure over-the-air firmware updates without compromising cryptographic keys. | Use Scenario: Distributed sensor nodes monitor cell voltage, temperature, and SOC in EV battery packs, relaying data to master BMS controller. IC Role / Device Role / Timing Role: KW45Z41082AFTBR serves as wireless node MCU with CAN FD interface for high-integrity telemetry transmission and secure firmware update delivery. Use Value: Combines BLE 5.3 long-range connectivity (–102 dBm @ 500 kbps) with CAN FD (5 Mbps) for fast, deterministic diagnostics and secure OTA patching. |
| Industrial Positioning | Building Automation |
Use Scenario: Asset tracking tags in factories use BLE direction-finding and time-of-flight measurements to locate tools or pallets within 1-meter accuracy. IC Role / Device Role / Timing Role: KW45Z41082AFTBR executes BLE AoA/AoD protocols while managing ultra-low-power scheduling via LPIT and RTC alarm. Use Value: Achieves <300 nA deep-sleep current with GPIO wake-up, extending battery life beyond 5 years in sealed industrial tags. | Use Scenario: HVAC controllers in smart buildings coordinate zone sensors, actuators, and gateway via BLE mesh and CAN FD backbone networks. IC Role / Device Role / Timing Role: KW45Z41082AFTBR functions as edge node MCU with dual-interface support: BLE for local commissioning and CAN FD for real-time actuator control. Use Value: Integrates LIN-capable LPUART for legacy HVAC components and FlexCAN for deterministic inter-controller communication. |
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; 64 KB flash, no CAN FD, BLE 4.2 only, no EdgeLock enclave | Limited to non-automotive BLE sensor nodes without CAN backhaul or hardware crypto acceleration | Select only if cost-sensitive, non-automotive, and CAN FD/security features are unnecessary |
| S32K144WHT0MLHT | ARM Cortex-M4F core, 1 MB flash, CAN FD, but no integrated BLE radio; requires external BLE module | Requires separate BLE SoC and antenna routing; higher BOM cost and PCB area vs. single-chip KW45Z41082AFTBR | Choose when higher CPU performance (M4F FPU) and ASIL-B functional safety certification are required over integrated BLE |
Compared with MKW41Z64VLF4, KW45Z41082AFTBR adds BLE 5.3, CAN FD, EdgeLock security, and AEC-Q100 Grade 2 - enabling secure automotive wireless systems without external radios. Against S32K144WHT0MLHT, it eliminates external BLE integration complexity and reduces system-level power consumption by consolidating radio and MCU domains.
Availability
KW45Z41082AFTBR is available at Aetrix Electronics and suitable for automotive secure access, wireless battery management, and industrial positioning applications requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for KW45Z41082AFTBR 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 MCU, RF, and embedded security technologies.
KW45Z41082AFTBR belongs to the KW45 product family - designed specifically for secure, low-power, dual-protocol (BLE 5.3 + CAN FD) automotive and industrial wireless control systems requiring AEC-Q100 qualification and hardware-enforced trust.
FAQ
Does KW45Z41082AFTBR include an integrated Bluetooth Low Energy radio?
No - KW45Z41082AFTBR is the MCU-only variant of the KW45 family. Unlike KW45B-series parts, it lacks the integrated BLE 5.3 radio subsystem. It retains full FlexCAN, security, memory, and peripheral capabilities for applications where BLE is handled externally or not required. The "Z" suffix explicitly denotes non-radio MCU configuration.
What is the CAN FD capability of KW45Z41082AFTBR?
KW45Z41082AFTBR integrates FlexCAN supporting full CAN FD functionality per ISO 11898-1, including bit rates up to 5 Mbps, payloads up to 64 bytes, and seamless fallback to classical CAN 2.0B. It requires an external CAN transceiver but provides all controller logic, message RAM, and interrupt handling in silicon.
Is KW45Z41082AFTBR qualified for automotive use?
Yes - KW45Z41082AFTBR is AEC-Q100 Grade 2 qualified (–40 °C to +105 °C ambient), with full documentation of thermal, ESD (±2000 V HBM), and latch-up immunity. Its design follows MISRA C:2012 and ASPICE-compliant development processes, making it suitable for body electronics, PEPS, and WBMS applications.
How does the EdgeLock Secure Enclave function in KW45Z41082AFTBR?
The EdgeLock Secure Enclave in KW45Z41082AFTBR operates as a hardware-isolated domain executing cryptographic operations (AES/ECC/SHA2), key generation/storage, TRNG, and secure boot verification. It enforces privilege separation via TrustZone-M and TRDC, preventing unauthorized access to keys or secure firmware even if the main application core is compromised.
What package type and pin count does KW45Z41082AFTBR use?
KW45Z41082AFTBR uses a 40-pin HVQFN package (6 × 6 × 0.85 mm, 0.5 mm pitch) with wettable flanks. This package enables automated optical inspection (AOI) of solder joints and meets automotive reflow requirements, distinguishing it from the 48-pin 7×7 mm variant used in higher-memory KW45Z41083 variants.
KW45Z41082AFTBR 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)
KW45Z41082AFTBR FAQ
1.How can I place an order for KW45Z41082AFTBR through Aetrix?
Please submit a Request for Quotation (RFQ) for KW45Z41082AFTBR 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 KW45Z41082AFTBR reliable?
The price and inventory of KW45Z41082AFTBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KW45Z41082AFTBR is usually 5 days.
3.What payment methods are accepted for KW45Z41082AFTBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KW45Z41082AFTBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KW45Z41082AFTBR?
KW45Z41082AFTBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KW45Z41082AFTBR 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 KW45Z41082AFTBR?
For technical support, including KW45Z41082AFTBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KW45Z41082AFTBR requirements.
6.How does Aetrix verify that KW45Z41082AFTBR is sourced from the original manufacturer or authorized distributors?
All KW45Z41082AFTBR 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 KW45Z41082AFTBR meets industry standards.
7.What is the process for return or replacement of KW45Z41082AFTBR?
All KW45Z41082AFTBR units undergo pre-shipment inspection (PSI). If there is an issue with KW45Z41082AFTBR, 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 KW45Z41082AFTBR part is unused and in its original packaging.
Return procedure for KW45Z41082AFTBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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