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NXP Semiconductors KW45B41Z82AFPBT
- Part No.:
- KW45B41Z82AFPBT
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
KW45B41Z82AFPBT.pdf
- Description:
- IC RF TXRX+MCU BLE 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,497
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Product details
Overview
KW45B41Z82AFPBT from NXP Semiconductors is a highly secure, single-chip wireless MCU integrating Bluetooth Low Energy 5.3 radio and CAN FD interface, built around a 96 MHz Arm Cortex-M33 core with 1 MB flash and 128 KB SRAM, targeting automotive secure access and industrial wireless battery management systems.
For engineers reviewing the KW45B41Z82AFPBT datasheet, KW45B41Z82AFPBT pinout, KW45B41Z82AFPBT application, or KW45B41Z82AFPBT equivalent, this page delivers verified technical context, exact package mapping (6×6 mm 40-pin HVQFN), confirmed low-power operation (<5.3 mA active core current), AEC-Q100 Grade 2 qualification, and real-world security architecture details including EdgeLock™ Secure Enclave and TrustZone-M.
Technical Context
The KW45B41Z82AFPBT implements a dual-core architecture: a 96 MHz Arm Cortex-M33 application core with TrustZone-M, IEEE 754 FPU, and 8 KB code cache, plus a dedicated 64 MHz CM3 radio core handling BLE 5.3 link layer in 256 kB flash and 88 KB SRAM. It integrates FlexCAN supporting full ISO 11898-1 CAN and CAN FD, alongside two LPUARTs with LIN capability.
Security is enforced via EdgeLock™ Secure Enclave with hardware AES-128/192/256, ECC P-192–521, SHA2-224/256/384/512, TRNG, PRINCE encryption, and secure boot ROM. Power management includes DC/DC regulator (1.8–3.6 V), Core/SYS LDOs, and ultra-low leakage Smart Power Switch (<100 nA sleep current).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M33 @ up to 96 MHz with TrustZone-M, FPU, DSP, MPU, and 8 KB code cache |
| Memory | 1 MB flash (encrypted on-the-fly via PRINCE) + 128 KB SRAM with ECC/parity protection |
| Wireless | BLE 5.3 radio: –106 dBm sensitivity @ 125 kbps, +10 dBm TX power, 24 simultaneous connections |
| CAN Interface | FlexCAN compliant with ISO 11898-1, supporting both CAN 2.0B and CAN FD protocols |
| Security | EdgeLock™ Secure Enclave with hardware crypto accelerators, secure key storage, and factory Root of Trust |
| Power | <5.3 mA active core current @ 96 MHz; <3 μA power-down mode with RTC + 32 KB SRAM retention |
| Qualification | AEC-Q100 Grade 2, operating ambient temperature range –40 °C to +105 °C |
Pinout & Package
Package: 40-pin HVQFN (6 × 6 × 0.85 mm, 0.5 mm pitch, wettable flanks). Pinout validated per NXP KW45B41ZRM Reference Manual and SOT618-13(DD) package drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO_ABC | Digital I/O supply rail | Provides 1.71–3.6 V power to Ports A/B/C, Flash, and analog comparators; supports independent voltage domain control |
| VDD_CORE | Core logic supply | 1.0–1.21 V input for Cortex-M33 core and digital subsystem; regulated by internal LDO or external source |
| VDD_RF | RF analog supply | 1.175–3.6 V supply for 2.4 GHz transceiver analog blocks and RF crystal oscillator |
| PTA0 / PTB0 | GPIO / CAN_TX / CAN_RX | Multi-function pins supporting CAN FD differential signaling and general-purpose I/O with interrupt capability |
| PTD0 | LPUART0_RX / LIN | Low-power UART receive pin with LIN physical layer support for automotive body control networks |
| ANT | RF antenna interface | Single-ended bidirectional RF port connected to on-chip balun; requires external matching network for 2.4 GHz band |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot & Debug | Immutable boot ROM enforces authenticated firmware load; debug access restricted by TrustZone-M and TRDC domains |
| Hardware Crypto Acceleration | Dedicated engines for AES-128/192/256 (GCM/CCM), ECC NIST P-192–521, SHA2-224/256/384/512, and Poly1305 |
| FlexCAN with CAN FD | Full ISO 11898-1 implementation enabling high-speed data transfer (up to 5 Mbps) and extended payload length in automotive ECUs |
| Ultra-Low-Power Modes | Deep Power-Down mode draws <1.5 μA with RTC active; Smart Power Switch enables 300 nA sleep current with GPIO/timer wake-up |
| On-Chip Balun | Integrated RF balun eliminates external matching components, reducing BOM cost and PCB area for BLE 2.4 GHz front-end |
Applications
| Secure Car Access | Passive Entry/Start (PEPS) |
|---|---|
Use Scenario: Wireless authentication between vehicle and fob during approach or door handle touch. IC Role / Device Role / Timing Role: Primary secure MCU executing cryptographic challenge-response, BLE 5.3 ranging, and CAN FD command relay to body control module. Use Value: Enables sub-100 ms latency handshaking with tamper-resistant key storage and secure OTA updates for evolving threat models. | Use Scenario: Seamless engine start without physical key insertion, triggered by proximity detection and vehicle state validation. IC Role / Device Role / Timing Role: Dual-role processor managing BLE low-latency proximity sensing, secure session establishment, and CAN FD ignition command transmission. Use Value: Meets ASIL-B functional safety requirements via MPU, ECC SRAM, watchdog timers, and clock accuracy monitoring (SFA/CAC). |
| Wireless Battery Management (WBMS) | Industrial Positioning/Localization |
Use Scenario: Real-time cell voltage, temperature, and SOC telemetry from EV battery packs using wireless mesh nodes. IC Role / Device Role / Timing Role: Edge node MCU collecting analog sensor data via 16-bit ADC, encrypting payloads in EdgeLock enclave, and transmitting over BLE/CAN FD gateway. Use Value: Eliminates wiring harnesses while maintaining AEC-Q100 reliability and <3 μA sleep current for multi-year battery life. | Use Scenario: Indoor asset tracking in smart factories using BLE AoA/AoD or time-of-flight measurements. IC Role / Device Role / Timing Role: High-precision timing node synchronizing to BLE 5.3 Long Range packets with –106 dBm sensitivity for robust multipath environments. Use Value: Achieves <1 m localization accuracy using integrated 56-bit timestamp timer and signal frequency analyzer (SFA) for clock drift compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| KW45B41Z83AFPBT | Same 40-pin HVQFN package and feature set, but includes integrated CAN FD controller (KW45B41Z82AFPBT lacks CAN FD per Table 1) | Required for automotive ECU designs needing CAN FD bus communication; not suitable where CAN FD is unused | Select KW45B41Z83AFPBT only when CAN FD functionality is mandatory; KW45B41Z82AFPBT reduces cost and complexity where CAN FD is unnecessary |
| NRF52840-QIAA | BLE 5.0-only SoC (no CAN FD), 1 MB flash/256 KB RAM, no AEC-Q100 qualification, no TrustZone-M or EdgeLock enclave | Suitable for consumer IoT or non-automotive industrial use; lacks automotive-grade safety, security, and CAN interface | Choose NRF52840-QIAA for cost-sensitive, non-automotive BLE applications requiring higher RAM; avoid for automotive or CAN-connected systems |
Compared with KW45B41Z83AFPBT, KW45B41Z82AFPBT omits CAN FD while retaining identical BLE 5.3 performance, security, and power specs - making it optimal for BLE-only automotive access nodes. Versus NRF52840-QIAA, KW45B41Z82AFPBT adds AEC-Q100 Grade 2, TrustZone-M, EdgeLock enclave, and automotive-ready peripherals at higher system-level integration cost.
Availability
KW45B41Z82AFPBT is available at Aetrix Electronics and suitable for automotive secure access systems, wireless battery management nodes, and industrial positioning gateways requiring stable component supply, long lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for KW45B41Z82AFPBT 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 MCUs, RF, and embedded security.
The KW45 product family is designed specifically for automotive and industrial wireless edge nodes requiring concurrent BLE 5.3 and CAN FD connectivity, hardened security (TrustZone-M + EdgeLock), and AEC-Q100 Grade 2 reliability in extended temperature environments.
FAQ
Does KW45B41Z82AFPBT support CAN FD?
No, KW45B41Z82AFPBT does not include CAN FD functionality. Per NXP's official ordering information table (Table 1), KW45B41Z82AFPBT is explicitly marked "No" under the CAN column, distinguishing it from CAN FD-enabled variants like KW45B41Z83AFPBT. The device retains full BLE 5.3 radio capabilities, 96 MHz Cortex-M33 core, and EdgeLock Secure Enclave, but omits the FlexCAN module required for CAN FD compliance.
What is the package type and pin count of KW45B41Z82AFPBT?
KW45B41Z82AFPBT uses a 40-pin HVQFN package measuring 6 × 6 × 0.85 mm with 0.5 mm pitch and wettable flanks (package code SOT618-13(DD)). This compact, automotive-qualified封装 supports reflow soldering and optical inspection of solder joints, and is validated in NXP's KW45B41ZRM reference manual and official package drawings.
Is KW45B41Z82AFPBT AEC-Q100 qualified?
Yes, KW45B41Z82AFPBT is AEC-Q100 Grade 2 qualified, certified for ambient operating temperatures from –40 °C to +105 °C and junction temperatures up to +125 °C. This qualification covers thermal, ESD (±2000 V HBM), latch-up immunity (Class II), and lifetime reliability testing per automotive standards, confirming suitability for under-hood and body-control applications.
What security features are implemented in KW45B41Z82AFPBT?
KW45B41Z82AFPBT integrates Arm TrustZone-M, a resource domain controller (TRDC), and the isolated EdgeLock™ Secure Enclave with hardware AES-128/192/256, ECC P-192–521, SHA2-224/256/384/512, TRNG, PRINCE on-the-fly flash encryption, and secure boot ROM. These features enable secure key generation/storage, encrypted firmware execution, and tamper-resistant runtime isolation - all confirmed in the KW45 Product Family Data Sheet Rev. 9.
What is the maximum BLE transmit power and receive sensitivity of KW45B41Z82AFPBT?
KW45B41Z82AFPBT supports programmable BLE transmit output power up to +10 dBm and achieves –106 dBm receive sensitivity at 125 kbps (Long Range mode), –102 dBm at 500 kbps, –97.5 dBm at 1 Mbps, and –95 dBm at 2 Mbps. These values are measured per Bluetooth SIG specifications and documented in the KW45 Product Family Data Sheet Section 3.4.2.
KW45B41Z82AFPBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- Kinetis KW45B
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- TxRx + MCU
- RF Family/Standard:
- Bluetooth, General ISM > 1GHz
- Protocol:
- Bluetooth v5.3
- Modulation:
- FSK, GFSK, GMSK, MSK
- Frequency:
- 2.36GHz ~ 2.48GHz
- Data Rate (Max):
- 2Mbps
- Power - Output:
- 10dBm
- Sensitivity:
- -106dBm
- Memory Size:
- 1MB Flash, 128kB RAM
- Serial Interfaces:
- I2C, PWM, SPI, UART
- GPIO:
- -
- Voltage - Supply:
- 1.8V ~ 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)
KW45B41Z82AFPBT FAQ
1.How can I place an order for KW45B41Z82AFPBT through Aetrix?
Please submit a Request for Quotation (RFQ) for KW45B41Z82AFPBT 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 KW45B41Z82AFPBT reliable?
The price and inventory of KW45B41Z82AFPBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KW45B41Z82AFPBT is usually 5 days.
3.What payment methods are accepted for KW45B41Z82AFPBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KW45B41Z82AFPBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KW45B41Z82AFPBT?
KW45B41Z82AFPBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KW45B41Z82AFPBT 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 KW45B41Z82AFPBT?
For technical support, including KW45B41Z82AFPBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KW45B41Z82AFPBT requirements.
6.How does Aetrix verify that KW45B41Z82AFPBT is sourced from the original manufacturer or authorized distributors?
All KW45B41Z82AFPBT 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 KW45B41Z82AFPBT meets industry standards.
7.What is the process for return or replacement of KW45B41Z82AFPBT?
All KW45B41Z82AFPBT units undergo pre-shipment inspection (PSI). If there is an issue with KW45B41Z82AFPBT, 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 KW45B41Z82AFPBT part is unused and in its original packaging.
Return procedure for KW45B41Z82AFPBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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