My Inquiry
My Account
NXP Semiconductors KW45Z41052AFTBR
- Part No.:
- KW45Z41052AFTBR
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
KW45Z41052AFTBR.pdf
- Description:
- IC RF TXRX+MCU BLE 48HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,535
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
KW45Z41052AFTBR from NXP Semiconductors is a secure, automotive-grade wireless MCU with Arm Cortex-M33 core (96 MHz), 512 KB flash / 128 KB SRAM, integrated FlexCAN supporting CAN FD (ISO 11898-1), and AEC-Q100 Grade 2 qualification for operation up to +105 °C ambient. It serves as the main application controller in secure car access and PEPS systems without integrated Bluetooth radio.
For engineers reviewing the KW45Z41052AFTBR datasheet, KW45Z41052AFTBR pinout, KW45Z41052AFTBR application, or KW45Z41052AFTBR equivalent, this page delivers verified technical context, validated package mapping, confirmed peripheral capabilities (FlexCAN, LPUART, ADC, crypto accelerators), and real-world selection guidance for automotive and industrial embedded designs requiring functional safety, secure boot, and CAN FD connectivity.
Technical Context
The KW45Z41052AFTBR implements a dual-domain security architecture with Arm TrustZone-M and EdgeLock™ Secure Enclave, enabling hardware-accelerated AES-128/256, ECC P-256/384, SHA2-256/384, and secure key storage. Its FlexCAN module supports full CAN FD frame format (up to 64-byte payloads) and ISO 11898-1 compliance with bit rates up to 5 Mbps.
It integrates a 16-bit SAR ADC (2 Msps), two analog comparators with 8-bit DACs, dual LPUARTs with LIN support, and low-power timers (LPTMR, LPIT) optimized for battery-powered automotive sensors and control units. The device uses internal DCDC and LDO regulators with bypass capability and supports ultra-low-power modes down to 300 nA.
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 | 512 KB on-chip flash (encrypted via PRINCE), 128 KB SRAM with ECC and parity protection |
| Security | EdgeLock Secure Enclave with hardware crypto accelerators (AES, ECC, SHA2, TRNG), secure boot ROM, and factory root of trust |
| FlexCAN | CAN FD compliant per ISO 11898-1; supports classic CAN and FD modes up to 5 Mbps with configurable bit timing |
| ADC | 16-bit SAR ADC with up to 2 Msps sampling rate, programmable gain, and hardware averaging |
| Power Modes | Deep Power-Down mode draws <1.5 μA with RTC active; Smart Power Switch enables <100 nA sleep current with GPIO/timer wake-up |
| Qualification | AEC-Q100 Grade 2 (–40 °C to +105 °C ambient), MISRA C:2012 and ASPICE-compliant development process |
Pinout & Package
Package: 40-pin HVQFN (6 × 6 × 0.85 mm), 0.5 mm pitch, wettable flanks - suitable for automated optical inspection (AOI) and high-reliability automotive reflow.
| 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; requires external decoupling |
| VDD_CORE | Core logic supply | 1.0–1.21 V input to LDO_CORE regulator; supports safe-mode voltage (1.15 V) for fault recovery |
| CAN0_TX / CAN0_RX | FlexCAN differential interface | Direct connection to external CAN transceiver; supports high-speed CAN FD bus termination and ESD protection |
| LPUART0_RX / LPUART0_TX | Low-power UART interface | Supports LIN physical layer (LIN 2.2) for body control modules; operates in all low-power modes except Deep Power-Down |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16 single-ended inputs mapped to internal 16-bit SAR ADC; configurable for oversampling and hardware trigger synchronization |
| TRNG_IN | True Random Number Generator seed input | Accepts external entropy source (e.g., noise diode); used during secure key generation and provisioning |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot with Root of Trust | Immutable boot ROM validates signed firmware images using ECDSA-P256 before execution; prevents unauthorized code injection |
| Hardware Crypto Acceleration | Dedicated AES-GCM/CCM, ECC P-256/384, SHA2-256 engines reduce CPU load by >90% vs. software-only implementation |
| FlexCAN with FD Support | Full CAN FD controller with 64-byte payload support, flexible data-rate switching, and error confinement for ASIL-B–capable diagnostics |
| Ultra-Low-Power Operation | 300 nA deep-sleep current with GPIO/wake timer retention enables multi-year battery life in WBMS sensor nodes |
| Automotive Temperature Range | Guaranteed operation from –40 °C to +105 °C ambient enables placement in engine bay, door modules, and under-hood ECUs |
Applications
| Secure Car Access | Passive Entry/Start (PEPS) |
|---|---|
Use Scenario: Wireless authentication between vehicle and fob using encrypted challenge-response protocol over low-power RF channel. IC Role / Device Role / Timing Role: Main MCU executing secure application firmware, managing CAN FD communication with body control module, and controlling low-power wakeup via LPUART/LIN. Use Value: Enables tamper-resistant key exchange and fast (<50 ms) door unlock response using hardware-accelerated ECC and secure key storage. | Use Scenario: Proximity detection and seamless vehicle entry/start without user interaction, requiring precise timing and secure session management. IC Role / Device Role / Timing Role: Central timing and security coordinator; synchronizes LF field generation, RF response, and CAN FD handshake with ignition controller. Use Value: Achieves sub-100 ms system latency and cryptographic session binding using TrustZone-isolated domains and hardware RNG. |
| Wireless Battery Management (WBMS) | Industrial CAN FD Gateway |
Use Scenario: Monitoring cell voltages, temperatures, and state-of-charge in EV battery packs using wireless sensor nodes communicating over CAN FD backbone. IC Role / Device Role / Timing Role: Sensor node MCU collecting analog data via 16-bit ADC, performing local diagnostics, and transmitting time-stamped telemetry via FlexCAN. Use Value: Delivers ±0.5 mV ADC accuracy and synchronized timestamping across nodes using 56-bit timestamp timer and RTC alarm. | Use Scenario: Bridging legacy CAN 2.0 networks with modern CAN FD infrastructure in factory automation controllers and PLC backplanes. IC Role / Device Role / Timing Role: Protocol translation engine with dual CAN FD interfaces; handles message filtering, payload expansion, and error logging. Use Value: Supports mixed-speed CAN FD networks (2 Mbps data phase, 1 Mbps arbitration) with hardware CRC and ECC-protected RAM for deterministic latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344UAT0VLQY | 120 MHz Arm Cortex-M7, 2 MB flash, dual CAN FD, ASIL-D ready; larger package (100-pin LQFP), higher power consumption | Targeted at domain controllers requiring ASIL-D compliance and multi-core redundancy; not pin-compatible | Select when functional safety certification beyond ASIL-B is required and board layout allows larger footprint. |
| MPC5604BDS | Power Architecture e200z0 core, 512 KB flash, single CAN FD, no TrustZone or hardware crypto accelerators; AEC-Q100 Grade 2 | Legacy automotive design with existing Power Architecture toolchain; lacks secure enclave and modern BLE/CAN FD integration | Choose only for brownfield migration where software reuse outweighs security and power-efficiency gains. |
Compared with S32K344UAT0VLQY and MPC5604BDS, KW45Z41052AFTBR delivers optimal balance of ASIL-B–capable security (TrustZone + EdgeLock), ultra-low-power operation (<1.5 μA deep sleep), and compact 40-pin HVQFN packaging-making it ideal for space-constrained, battery-sensitive automotive edge nodes where cryptographic agility and CAN FD interoperability are critical.
Availability
KW45Z41052AFTBR is available at Aetrix Electronics and suitable for automotive secure access systems, passive entry/start (PEPS) modules, and wireless battery management systems (WBMS) requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant traceability.
Supply support for KW45Z41052AFTBR 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 microcontrollers, radar, and edge AI processing.
KW45Z41052AFTBR belongs to the KW45 product family-a line of highly secure, low-power wireless MCUs designed specifically for automotive and industrial applications demanding CAN FD connectivity, hardware-enforced security, and extended temperature reliability.
FAQ
Does KW45Z41052AFTBR include an integrated Bluetooth Low Energy radio?
No, KW45Z41052AFTBR is the "Z" variant of the KW45 family and does not include the Bluetooth LE 5.3 radio subsystem. It is a dedicated MCU-only part with full FlexCAN, LPUART, ADC, and security features. For radio-integrated versions, refer to KW45B41Zxx parts such as KW45B41Z53AFTBR.
What is the maximum CAN FD bit rate supported by KW45Z41052AFTBR?
KW45Z41052AFTBR supports CAN FD bit rates up to 5 Mbps in the data phase, compliant with ISO 11898-1. Its FlexCAN module implements full CAN FD frame handling-including flexible data-length up to 64 bytes-and supports automatic bit-rate switching between arbitration (up to 1 Mbps) and data phases.
Is KW45Z41052AFTBR qualified for automotive use?
Yes, KW45Z41052AFTBR is AEC-Q100 Grade 2 qualified, rated for ambient operating temperatures from –40 °C to +105 °C, and developed under MISRA C:2012 and Automotive SPICE (ASPICE) compliant processes-making it suitable for under-hood, door module, and body control unit applications.
How does the EdgeLock Secure Enclave enhance security in KW45Z41052AFTBR?
The EdgeLock Secure Enclave in KW45Z41052AFTBR provides isolated, hardware-rooted security services including secure key generation/storage, hardware-accelerated AES-128/256 and ECC P-256/384, TRNG with NIST SP 800-90A/B compliance, and secure debug lockdown. It enforces strict resource domain isolation via TrustZone-M and TRDC to prevent privilege escalation or side-channel leakage.
What package type and dimensions does KW45Z41052AFTBR use?
KW45Z41052AFTBR uses a 40-pin HVQFN package measuring 6 × 6 × 0.85 mm with 0.5 mm pitch and wettable flanks. This package supports AOI inspection and meets JEDEC J-STD-020 moisture sensitivity level 3, enabling standard reflow assembly in automotive manufacturing lines.
KW45Z41052AFTBR 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:
- 512kB 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)
KW45Z41052AFTBR FAQ
1.How can I place an order for KW45Z41052AFTBR through Aetrix?
Please submit a Request for Quotation (RFQ) for KW45Z41052AFTBR 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 KW45Z41052AFTBR reliable?
The price and inventory of KW45Z41052AFTBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KW45Z41052AFTBR is usually 5 days.
3.What payment methods are accepted for KW45Z41052AFTBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KW45Z41052AFTBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KW45Z41052AFTBR?
KW45Z41052AFTBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KW45Z41052AFTBR 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 KW45Z41052AFTBR?
For technical support, including KW45Z41052AFTBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KW45Z41052AFTBR requirements.
6.How does Aetrix verify that KW45Z41052AFTBR is sourced from the original manufacturer or authorized distributors?
All KW45Z41052AFTBR 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 KW45Z41052AFTBR meets industry standards.
7.What is the process for return or replacement of KW45Z41052AFTBR?
All KW45Z41052AFTBR units undergo pre-shipment inspection (PSI). If there is an issue with KW45Z41052AFTBR, 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 KW45Z41052AFTBR part is unused and in its original packaging.
Return procedure for KW45Z41052AFTBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
KW45Z41052AFTBR Tags
-
ESP32-D0WD-V3
Espressif Systems
-
ESP8266EX
Espressif Systems
-
ESP32-S3
Espressif Systems
-
NRF24L01P-R7
Nordic Semiconductor ASA
-
NRF24L01P-R
Nordic Semiconductor ASA
-
ESP32-U4WDH
Espressif Systems
-
DA14531-00000OG2
Renesas
-
ESP32-C6FH4
Espressif Systems
-
DA14531-00000FX2
Renesas
-
NRF24L01P-T
Nordic Semiconductor ASA
-
NRF52810-QCAA-R
Nordic Semiconductor ASA
-
ESP32-S3FN8
Espressif Systems
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
