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NXP Semiconductors KW45Z41083AFPBR
- Part No.:
- KW45Z41083AFPBR
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
KW45Z41083AFPBR.pdf
- Description:
- IC RF TXRX+MCU BLE 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,317
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Product details
Overview
KW45Z41083AFPBR 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 KW45Z41083AFPBR datasheet, KW45Z41083AFPBR pinout, KW45Z41083AFPBR application, or KW45Z41083AFPBR equivalent, key selection criteria include AEC-Q100 Grade 2 qualification, on-the-fly PRINCE encryption, -40 °C to +105 °C operation, ultra-low power-down current (<3 μA), and dual-domain security architecture with TRDC and secure boot ROM.
Technical Context
The KW45Z41083AFPBR implements a dual-core architecture: the main Cortex-M33 executes application firmware with TrustZone-M isolation, while a dedicated CM3 core handles Bluetooth LE 5.3 protocol stack execution. It integrates a hardware-accelerated EdgeLock Secure Enclave supporting AES-128/192/256, ECC P-256/384, ECDSA, SHA2-256/384, and PRINCE XEX encryption for flash.
Its FlexCAN controller supports full CAN FD (up to 5 Mbps) with ISO 11898-1 compliance, and low-power peripherals include two LPUARTs with LIN capability, two LPI2Cs, two LPSPIs, MIPI-I3C, and a 16-bit SAR ADC (2 Msps). Power management includes DC/DC buck mode, Smart Power Switch (<100 nA sleep), and multiple retention modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M33 @ 96 MHz with TrustZone-M, FPU, DSP, MPU, 8 KB code cache |
| Memory | 1 MB flash (PRINCE-encrypted), 128 KB SRAM with ECC/parity protection |
| Security | EdgeLock Secure Enclave with hardware crypto accelerators, TRDC, secure boot ROM, UUID & MAC subaddress |
| Connectivity | FlexCAN (CAN FD, ISO 11898-1), 2× LPUART w/LIN, 2× LPI2C, 2× LPSPI, MIPI-I3C, FlexIO |
| Radio Support | MCU-only variant - no integrated BLE radio; requires external KW45B companion radio IC |
| Power & Temp | AEC-Q100 Grade 2; -40 °C to +105 °C ambient; <3 μA power-down (RTC + 32 KB SRAM retained) |
| Analog | 16-bit SAR ADC (2 Msps), 2× analog comparators w/8-bit DAC, 1.0–2.1 V reference |
Pinout & Package
Package: 40-pin HVQFN (6 × 6 × 0.85 mm, 0.5 mm pitch, wettable flanks). Pinout validated per NXP SOT618-13(DD) package drawing and KW45Z41083AFPBR-specific pin assignment table (Rev. 9, p.71–77).
| 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, CMPs; enables 3.3 V logic compatibility |
| VDD_CORE | Core domain regulator input | 1.25–3.6 V input to internal LDO_CORE; supports 1.0–1.21 V core voltage operation |
| VDD_SYS | System domain supply | 1.8–2.25 V for PMC, EFUSE, SRTC, FROs; POR threshold at 1.0 V nominal |
| PTA0 / CAN0_RX | FlexCAN receive input | Dedicated differential CAN FD receiver pin; supports up to 5 Mbps data rate |
| PTA1 / CAN0_TX | FlexCAN transmit output | Active-high CAN FD transmitter; requires external CAN transceiver for bus interface |
| PTB0 / LPUART0_RX | LIN/UART receive input | Supports LIN 2.2 slave/master; compatible with 12 V automotive battery monitoring |
| PTB1 / LPUART0_TX | LIN/UART transmit output | Configurable as LIN wakeup or UART TX; low-power operation down to 300 nA sleep mode |
| RESET_b | Active-low reset input | Asynchronous reset with internal pull-up; triggers secure boot ROM initialization sequence |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 2 qualification | Validated for automotive under-hood environments up to +105 °C ambient, enabling PEPS and WBMS deployment |
| EdgeLock Secure Enclave | Hardware-isolated domain managing key storage, secure boot, cryptographic acceleration, and tamper response with four digital tamper pins |
| PRINCE XEX flash encryption | On-the-fly decryption of encrypted 1 MB flash contents using factory-programmed keys - protects firmware IP and OTA update payloads |
| Smart Power Switch | Ultra-low leakage switch enabling <100 nA deep-sleep current with GPIO or timer wake-up - critical for battery-powered automotive sensors |
| FlexCAN with CAN FD | Full ISO 11898-1 implementation supporting data rates up to 5 Mbps and payload lengths up to 64 bytes - meets modern ECU communication requirements |
Applications
| Secure Car Access | Passive Entry/Start (PEPS) |
|---|---|
Use Scenario: Vehicle proximity detection and encrypted authentication via UWB or LF+RF handshaking. IC Role / Device Role / Timing Role: Main application processor executing secure credential validation, CAN FD gateway to body control module, and real-time RF timing coordination. Use Value: Enables sub-100 ms unlock/start latency with hardware-accelerated ECC signature verification and tamper-resistant key storage. | Use Scenario: Key fob presence detection, door handle activation, and engine start authorization without physical button press. IC Role / Device Role / Timing Role: Central MCU managing LF field generation, BLE/CAN FD handshaking, secure enclave-based challenge-response, and low-power wake-up sequencing. Use Value: Achieves <3 μA power-down current with RTC and 32 KB SRAM retention - extends fob battery life beyond 5 years. |
| Wireless BMS (WBMS) | Industrial Positioning |
Use Scenario: Cell voltage, temperature, and state-of-charge telemetry collection across high-voltage battery packs using isolated wireless links. IC Role / Device Role / Timing Role: Safety-critical sensor node MCU with ASIL-B capable peripherals, CRC-protected CAN FD messaging, and secure OTA firmware updates. Use Value: Meets ISO 26262 functional safety requirements via SRAM ECC, watchdog timers, clock loss detection, and memory protection unit (MPU). | Use Scenario: Indoor asset tracking using time-of-flight (ToF) or angle-of-arrival (AoA) measurements with synchronized multi-node timing. IC Role / Device Role / Timing Role: Precision timing coordinator with 56-bit timestamp timer, signal frequency analyzer (SFA), and low-jitter 32.768 kHz RTC oscillator. Use Value: Delivers ±50 ppm frequency accuracy over -40 °C to +105 °C - enables sub-10 cm indoor localization accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344WAT0MLLT | 120 MHz Arm Cortex-M7, 4 MB flash, S32G-compatible security subsystem, no integrated BLE radio support | Targeted at high-end gateway ECUs; lacks native BLE stack offload core and PRINCE encryption | Choose for higher compute throughput and AUTOSAR Adaptive support; not drop-in for BLE-centric PEPS designs |
| MIMXRT685SFFOB | Cortex-M33 @ 600 MHz, 1 MB SRAM, no CAN FD, no AEC-Q100 qualification, i.MX RT series | Designed for industrial HMI and edge AI inference; lacks automotive safety features and CAN FD PHY layer support | Consider only for non-automotive, high-performance MCU applications requiring large on-chip SRAM and no CAN FD |
Compared with S32K344WAT0MLLT and MIMXRT685SFFOB, KW45Z41083AFPBR uniquely combines AEC-Q100 Grade 2, on-chip EdgeLock Secure Enclave with PRINCE, FlexCAN FD, and ultra-low power consumption - making it optimal for cost-sensitive, safety-aware automotive wireless nodes where BLE coexistence and secure OTA updates are mandatory.
Availability
KW45Z41083AFPBR is available at Aetrix Electronics and suitable for automotive secure access systems, wireless battery management, and industrial positioning applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for KW45Z41083AFPBR 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 MCU, RF, and embedded security.
The KW45 product line was designed specifically for automotive and industrial wireless edge nodes requiring certified functional safety, hardware-enforced security, and multi-protocol connectivity - with KW45Z variants serving as the secure MCU foundation for BLE/CAN FD system architectures.
FAQ
Does KW45Z41083AFPBR include an integrated Bluetooth Low Energy radio?
No, KW45Z41083AFPBR is the MCU-only variant of the KW45 family. It does not integrate a BLE radio; instead, it is designed to pair with companion KW45B-series radio ICs (e.g., KW45B41Z83AFPBR) via SPI or shared memory. This separation enables optimized RF layout, independent certification, and flexible protocol stack partitioning - all documented in the KW45 Product Family Data Sheet Rev. 9.
What security certifications and hardware features does KW45Z41083AFPBR support?
KW45Z41083AFPBR supports AEC-Q100 Grade 2 qualification and implements Arm TrustZone-M, EdgeLock Secure Enclave with hardware crypto accelerators (AES, ECC, SHA2), PRINCE XEX flash encryption, secure boot ROM, TRDC resource domain control, and four digital tamper pins with timestamping - meeting ISO/SAE 21434 cybersecurity engineering requirements for automotive ECUs.
Is KW45Z41083AFPBR pin-compatible with other KW45Z variants in the same package?
Yes, KW45Z41083AFPBR shares identical 40-pin HVQFN (SOT618-13) pinout and electrical characteristics with other KW45Z410xxAFPBR variants (e.g., KW45Z41053AFPBR), differing only in flash size (1 MB vs. 512 KB) and feature enablement (CAN FD enabled in all Z410x parts). Pin-to-pin compatibility is confirmed in NXP's KW45 ordering information tables and package drawings.
What is the maximum CAN FD data rate supported by KW45Z41083AFPBR?
KW45Z41083AFPBR's FlexCAN module supports full CAN FD operation per ISO 11898-1, including data rates up to 5 Mbps in the data phase and arbitration rates up to 1 Mbps. The peripheral includes programmable bit timing, error counters, and FIFO-based message buffering - verified in the KW45 Reference Manual (KW45B41ZRM) Section 3.7.5.
How does KW45Z41083AFPBR achieve ultra-low power consumption in deep-sleep mode?
KW45Z41083AFPBR achieves <1.5 μA deep power-down current using its Smart Power Switch, which isolates non-essential domains while retaining RTC operation and 32 KB SRAM. Wake-up occurs via GPIO, internal timer, or low-power peripherals - all validated per NXP's power consumption operating behaviors (Data Sheet Rev. 9, Section 2.2.7.2).
KW45Z41083AFPBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- Kinetis KW45Z
- Package/Case:
- 40-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:
- 40-HVQFN (6x6)
KW45Z41083AFPBR FAQ
1.How can I place an order for KW45Z41083AFPBR through Aetrix?
Please submit a Request for Quotation (RFQ) for KW45Z41083AFPBR 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 KW45Z41083AFPBR reliable?
The price and inventory of KW45Z41083AFPBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KW45Z41083AFPBR is usually 5 days.
3.What payment methods are accepted for KW45Z41083AFPBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KW45Z41083AFPBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KW45Z41083AFPBR?
KW45Z41083AFPBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KW45Z41083AFPBR 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 KW45Z41083AFPBR?
For technical support, including KW45Z41083AFPBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KW45Z41083AFPBR requirements.
6.How does Aetrix verify that KW45Z41083AFPBR is sourced from the original manufacturer or authorized distributors?
All KW45Z41083AFPBR 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 KW45Z41083AFPBR meets industry standards.
7.What is the process for return or replacement of KW45Z41083AFPBR?
All KW45Z41083AFPBR units undergo pre-shipment inspection (PSI). If there is an issue with KW45Z41083AFPBR, 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 KW45Z41083AFPBR part is unused and in its original packaging.
Return procedure for KW45Z41083AFPBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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