My Inquiry
My Account
NXP Semiconductors KW45Z41083AFPBT
- Part No.:
- KW45Z41083AFPBT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
KW45Z41083AFPBT.pdf
- Description:
- K4W1 HVQFN40
- Quantity:
- Payment:
- Shipping:
Inventory:2,779
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
KW45Z41083AFPBT 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 and Wireless Battery Management Systems (WBMS).
For engineers reviewing the KW45Z41083AFPBT datasheet, KW45Z41083AFPBT pinout, KW45Z41083AFPBT application, or KW45Z41083AFPBT equivalent, key selection criteria include AEC-Q100 Grade 2 qualification, on-chip EdgeLock™ Secure Enclave with PRINCE encryption, -40 °C to +105 °C ambient operation, 40-pin HVQFN (6 × 6 mm, wettable flanks), and dual-domain power management enabling <3 μA power-down current with RTC active.
Technical Context
The KW45Z41083AFPBT implements a dual-core architecture: the application core (Arm Cortex-M33 with TrustZone-M, FPU, MPU, and 8 KB code cache) handles system control and security services, while a dedicated CM3 radio core (64 MHz) manages BLE 5.3 link-layer operations independently. It integrates FlexCAN with full CAN FD support (up to 5 Mbps) and LIN-capable LPUARTs for automotive network coexistence.
Security is enforced via hardware-isolated EdgeLock™ Secure Enclave supporting AES-128/192/256, ECC NIST P-256/384, ECDSA, SHA2-256/384, TRNG, and PRINCE on-the-fly flash decryption. Power management includes DCDC 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 @ 96 MHz with TrustZone-M, FPU, DSP, 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 LR), +10 dBm TX output, 24 simultaneous connections |
| CAN Interface | FlexCAN supporting CAN FD (ISO 11898-1), up to 5 Mbps data rate, AEC-Q100 Grade 2 qualified |
| Security | EdgeLock™ Secure Enclave with hardware crypto accelerators, TRNG, secure boot ROM, and factory Root of Trust |
| Power | <3 μA in power-down mode (RTC active, 32 KB SRAM retention); <1.5 μA in Deep Power-Down mode |
| Operating Range | –40 °C to +105 °C ambient; junction up to +125 °C; AEC-Q100 Grade 2 certified |
Pinout & Package
Package: 40-pin HVQFN (6 × 6 × 0.85 mm, 0.5 mm pitch, wettable flanks). Compliant with JEDEC MO-220, SOT618-13(DD).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO_ABC | Digital I/O supply rail | Supplies Ports A/B/C, Flash, and comparators; 1.71–3.6 V range supports mixed-voltage interface design |
| VDD_CORE | Core logic supply | 1.0–1.21 V input to internal LDO_CORE; enables low-power operation with voltage scaling |
| VDD_RF | RF analog supply | 1.175–3.6 V rail for 32 MHz RF oscillator and BLE transceiver analog blocks |
| PTA0 / PTA1 | GPIO / CAN_TX / CAN_RX | Primary FlexCAN channel pins; support CAN FD physical layer signaling and bus arbitration |
| PTB0 / PTB1 | LPUART0_TX / LPUART0_RX | Low-power UART with LIN 2.2 compliance; enables diagnostic and body-control communication |
| PTD0 | SWD_CLK | Serial Wire Debug clock input; enables secure debug access under TrustZone-M domain control |
| RESET_b | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external watchdog or power supervisor assertion |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot & Debug | Immutable boot ROM validates signed firmware images; debug access restricted by TrustZone-M and TRDC policy |
| On-the-Fly Flash Decryption | PRINCE XEX block cipher decrypts encrypted flash contents during execution - protects IP without runtime overhead |
| FlexCAN with CAN FD | Full ISO 11898-1 implementation including bit-rate switching, payload up to 64 bytes, and error confinement for ASIL-B systems |
| Ultra-Low-Power Modes | Deep Power-Down mode draws <1.5 μA with RTC running; wakeup via GPIO, timer, or CAN bus activity |
| Hardware Crypto Acceleration | Dedicated AES/GCM/CCM, ECC, ECDSA, SHA2-256/384 engines offload CPU - critical for OTA update integrity and key exchange |
Applications
| Secure Car Access | Keyless Entry |
|---|---|
Use Scenario: Vehicle proximity detection and authentication using BLE 5.3 encrypted challenge-response handshake. IC Role / Device Role / Timing Role: Primary secure MCU executing cryptographic operations, managing BLE radio timing, and interfacing with CAN FD gateway for door lock actuation. Use Value: Enables sub-100 ms unlock latency with tamper-resistant key storage and PRINCE-encrypted firmware - meets OEM anti-relay attack requirements. | Use Scenario: Driver-initiated door unlocking via smartphone app or fob, requiring authenticated BLE connection and LIN-based door module control. IC Role / Device Role / Timing Role: BLE host controller coordinating link-layer security, LPUART driving LIN transceivers for body control unit communication. Use Value: Integrates BLE 5.3 Long Range (–106 dBm RX) and LIN PHY in one die - eliminates external transceivers and reduces BOM cost by 30% vs discrete solution. |
| Passive Entry/Start (PEPS) | Wireless BMS |
Use Scenario: Seamless vehicle entry and engine start without user interaction, using low-latency UWB/BLE fusion and secure key handover. IC Role / Device Role / Timing Role: Real-time secure processor managing time-critical RF synchronization, CAN FD message scheduling, and secure enclave key derivation. Use Value: Dual-core isolation ensures BLE timing integrity while EdgeLock™ enforces ASIL-B compliant key lifecycle - certified for PEPS functional safety. | Use Scenario: Cell voltage monitoring and state-of-charge reporting across battery packs using wireless mesh networking and CAN FD backhaul. IC Role / Device Role / Timing Role: Sensor node MCU collecting ADC data, encrypting telemetry via hardware AES, and transmitting over BLE to gateway before CAN FD aggregation. Use Value: 16-bit SAR ADC (2 Msps) and on-chip VREF enable ±0.1% cell voltage accuracy; <3 μA power-down extends node battery life to >10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure wireless MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP KW45Z41083AFTBT | Same silicon, 48-pin HVQFN (7 × 7 mm) package; higher pin count enables more GPIO, additional UART/SPI channels | Better suited for designs requiring >30 GPIO or dual CAN FD interfaces; larger footprint increases PCB area and assembly cost | Select when board layout allows 7×7 mm space and peripheral expansion is needed beyond 40-pin constraints |
| NXP KW38Z128VFM4 | Legacy KW38 family; Cortex-M0+ core (48 MHz), 128 KB flash, BLE 5.0 only, no CAN FD, no EdgeLock Secure Enclave | Targeted at cost-sensitive non-automotive IoT; lacks AEC-Q100 qualification, PRINCE encryption, and CAN FD support | Consider only for non-automotive, non-safety-critical BLE sensor nodes where security and CAN integration are not required |
Compared with KW45Z41083AFTBT, the KW45Z41083AFPBT offers identical functionality in a smaller 6×6 mm HVQFN package - reducing PCB area by 37% while maintaining full CAN FD, BLE 5.3, and EdgeLock™ capabilities. Versus KW38Z128VFM4, it delivers 2× core performance, automotive-grade security, and CAN FD - essential for PEPS and WBMS deployment.
Availability
KW45Z41083AFPBT is available at Aetrix Electronics and suitable for automotive secure access systems, wireless battery management systems, and industrial edge controllers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for KW45Z41083AFPBT 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 Arm-based MCUs and automotive-grade security IP.
The KW45 product line is designed specifically for automotive and industrial wireless edge nodes requiring integrated BLE 5.3, CAN FD, and hardware-enforced security - targeting PEPS, WBMS, and secure telematics gateways.
FAQ
What is the maximum operating temperature for KW45Z41083AFPBT?
KW45Z41083AFPBT is AEC-Q100 Grade 2 qualified with an ambient operating temperature range of –40 °C to +105 °C and junction temperature up to +125 °C. This rating is validated per JEDEC JESD22-A108 and supports under-hood automotive deployments including door modules and battery sensors.
Does KW45Z41083AFPBT support CAN FD at full 5 Mbps data rate?
Yes, KW45Z41083AFPBT's FlexCAN module fully complies with ISO 11898-1 and supports CAN FD bit-rate switching up to 5 Mbps in the data phase. The peripheral includes dedicated message RAM, error counters, and loopback mode for protocol validation - confirmed in KW45B41ZRM Section 3.7.5.
How does the EdgeLock™ Secure Enclave in KW45Z41083AFPBT protect firmware updates?
KW45Z41083AFPBT uses the EdgeLock™ Secure Enclave to authenticate and decrypt over-the-air (OTA) firmware updates via ECDSA signature verification and AES-GCM decryption. The enclave isolates keys and crypto operations from the application core - preventing extraction even if the main firmware is compromised.
What is the minimum supply current for KW45Z41083AFPBT in power-down mode with RTC active?
KW45Z41083AFPBT draws less than 3 μA in power-down mode with real-time clock (RTC) active and 32 KB SRAM retention. This value is measured at 25 °C with DCDC enabled and VDD_CORE = 1.1 V, per KW45 Product Family Data Sheet Section 2.2.7.2.
Is KW45Z41083AFPBT pin-compatible with other KW45Z variants in the same package?
KW45Z41083AFPBT shares identical 40-pin HVQFN pinout with all KW45Zx10xxAFPBT variants (e.g., KW45Z41053AFPBT), including matching signal assignments for FlexCAN, LPUART, and SWD. Pin compatibility is guaranteed across memory variants within the AFPBT suffix group per NXP Package Drawing SOT618-13(DD).
KW45Z41083AFPBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 40-VFQFN Exposed Pad
- Series:
- Kinetis KW45Z
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit
- Speed:
- 96MHz
- Connectivity:
- CANbus, HMI, I2C, SPI, UART/USART
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 22
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 14x16b SAR
- Oscillator Type:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
KW45Z41083AFPBT FAQ
1.How can I place an order for KW45Z41083AFPBT through Aetrix?
Please submit a Request for Quotation (RFQ) for KW45Z41083AFPBT 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 KW45Z41083AFPBT reliable?
The price and inventory of KW45Z41083AFPBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KW45Z41083AFPBT is usually 5 days.
3.What payment methods are accepted for KW45Z41083AFPBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KW45Z41083AFPBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KW45Z41083AFPBT?
KW45Z41083AFPBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KW45Z41083AFPBT 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 KW45Z41083AFPBT?
For technical support, including KW45Z41083AFPBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KW45Z41083AFPBT requirements.
6.How does Aetrix verify that KW45Z41083AFPBT is sourced from the original manufacturer or authorized distributors?
All KW45Z41083AFPBT 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 KW45Z41083AFPBT meets industry standards.
7.What is the process for return or replacement of KW45Z41083AFPBT?
All KW45Z41083AFPBT units undergo pre-shipment inspection (PSI). If there is an issue with KW45Z41083AFPBT, 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 KW45Z41083AFPBT part is unused and in its original packaging.
Return procedure for KW45Z41083AFPBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
KW45Z41083AFPBT Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
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…
