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Infineon Technologies CY9BF324LQN-G-AVE2
- Part No.:
- CY9BF324LQN-G-AVE2
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
CY9BF324LQN-G-AVE2.pdf
- Description:
- IC MCU 32BIT 288KB FLASH 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,353
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Product details
Overview
CY9BF324LQN-G-AVE2 from Infineon is a 32-bit TRAVEO™ T2G Arm® Cortex®-M4F automotive microcontroller with integrated flash (2 MB), RAM (512 KB), and hardware security engine (HSE). It supports CAN FD, Ethernet AVB, and multiple PWM/ADC channels, targeting body control modules and domain controllers in vehicle interior systems.
For engineers reviewing the CY9BF324LQN-G-AVE2 datasheet, CY9BF324LQN-G-AVE2 pinout, CY9BF324LQN-G-AVE2 application, or CY9BF324LQN-G-AVE2 equivalent, key selection criteria include ASIL-B compliance, dual-core lockstep capability, configurable safety peripherals, and AEC-Q100 Grade 2 qualification for under-hood and cabin environments.
Technical Context
This MCU implements a dual-core Arm® Cortex®-M4F architecture with lockstep execution for functional safety, supporting ISO 26262 ASIL-B decomposition. It integrates a hardware security engine with AES-128/256, SHA-256, RSA-2048, and secure boot via immutable ROM bootloader.
The device features 12x CAN FD interfaces (including 2 with time-triggered communication), 1x 100BASE-T1 Ethernet AVB controller with IEEE 802.1AS timestamping, and 4x 12-bit SAR ADCs with up to 16-bit effective resolution via oversampling - all operating across -40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual Arm® Cortex®-M4F @ 200 MHz with lockstep for ASIL-B compliance |
| Flash Memory | 2 MB embedded flash with ECC, 4KB sector erase, 100k write cycles |
| RAM | 512 KB SRAM with parity/ECC, split into safety-critical and application partitions |
| Security Engine | Hardware HSE supporting AES-128/256, SHA-256, RSA-2048, ECDSA, and secure key storage |
| Automotive Qualification | AEC-Q100 Grade 2 (-40°C to +125°C), ISO 26262 ASIL-B certified per ISO 26262-5:2018 |
| Communication Interfaces | 12× CAN FD (2× TT-CAN), 1× 100BASE-T1 Ethernet AVB, 4× SPI, 4× I²C, 4× UART/LIN |
| ADC | 4× 12-bit SAR ADCs, up to 16-bit effective resolution via oversampling, 1.2 MSPS aggregate rate |
Pinout & Package
Package: 176-pin LQFP (24 × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power supply / ground | Independent 3.3 V analog domain with dedicated filtering for ADC reference stability |
| ETH_RXD0 / ETH_TXD0 | Ethernet AVB differential data pair | Direct connection to 100BASE-T1 PHY; supports IEEE 802.1AS timestamping and PTPv2 |
| CANFD0_TX / CANFD0_RX | CAN FD high-speed transceiver interface | Supports bit rates up to 5 Mbps; compatible with ISO 11898-1:2015 and ISO 16845-2 conformance testing |
| HSE_CLKIN / HSE_CLKOUT | External crystal oscillator input/output | Accepts 1–40 MHz crystal; enables precise clock generation for Ethernet AVB synchronization |
| BOOT0 / BOOT1 | Boot mode configuration pins | Determines boot source (embedded flash, external QSPI, or ROM bootloader) at reset |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep operation | Enables real-time fault detection with <1 µs diagnostic latency for ASIL-B safety goals |
| Configurable Safety Island | Isolates watchdog timers, CRC engines, and memory protection units for independent safety monitoring |
| Hardware Security Engine (HSE) | Offloads cryptographic operations from CPU, enabling secure OTA updates without performance penalty |
| Time-Triggered CAN (TT-CAN) | Guarantees deterministic message scheduling with jitter <1 µs for ADAS sensor fusion coordination |
| Flexible Clock Generation Unit (CGU) | Generates 16 independent clock domains with spread-spectrum modulation to reduce EMI in EMC-sensitive zones |
Applications
| Body Control Module (BCM) | Door Control Unit (DCU) |
|---|---|
|
Use Scenario: Centralized management of lighting, window lift, mirror adjustment, and seat position in premium vehicles. IC Role / Device Role / Timing Role: Primary application MCU with integrated CAN FD and LIN gateway functionality. Use Value: Reduces BOM count by integrating 12 CAN FD nodes and 4 LIN transceivers, eliminating discrete protocol bridges. |
Use Scenario: Real-time control of power windows, anti-pinch detection, and proximity-based door unlocking. IC Role / Device Role / Timing Role: Safety-critical actuator controller with ASIL-B compliant PWM and ADC subsystems. Use Value: Achieves <100 µs response time for anti-pinch torque sensing using oversampled ADC and hardware-accelerated motor control loop. |
| Instrument Cluster Domain Controller | Roof Module Controller |
|
Use Scenario: Aggregation of speed, RPM, fuel level, and ADAS alerts for TFT display rendering and HUD projection. IC Role / Device Role / Timing Role: High-integrity data concentrator with Ethernet AVB for camera feed synchronization. Use Value: Enables sub-10 µs timestamp alignment between CAN FD vehicle bus and Ethernet AVB camera streams for HUD latency compensation. |
Use Scenario: Integrated control of sunroof, ambient lighting, rain sensor, and panoramic roof shading motors. IC Role / Device Role / Timing Role: Multi-sensor fusion hub with hardware-accelerated signal processing for capacitive touch and optical sensing. Use Value: Supports simultaneous sampling of 8 capacitive touch channels and 4 analog rain/light sensors with <12-bit ENOB at 10 kSPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K344 | Single-core Arm® Cortex®-M7 @ 320 MHz; no integrated Ethernet AVB; supports CAN FD only up to 8 channels | Lacks native 100BASE-T1 support; requires external PHY and software stack for time-sync protocols | Preferred when higher single-thread CPU throughput is prioritized over Ethernet integration and multi-CAN FD density |
| Renesas RH850/U2A | 32-bit RH850 core @ 400 MHz; no Arm architecture; supports CAN FD but no Ethernet; uses proprietary safety monitor IP | Requires toolchain migration; limited third-party middleware for Ethernet AVB and secure boot | Selected where legacy RH850 ecosystem compatibility and ultra-low-power sleep modes (<1 µA) outweigh Ethernet requirements |
Compared with S32K344 and RH850/U2A, CY9BF324LQN-G-AVE2 uniquely delivers native 100BASE-T1 Ethernet AVB with hardware timestamping, 12 CAN FD channels, and ASIL-B-certified dual-core lockstep - enabling consolidated domain controllers without external protocol bridges or safety co-processors.
Availability
CY9BF324LQN-G-AVE2 is available at Aetrix Electronics and suitable for body control modules, door control units, instrument cluster domain controllers, and roof module controllers requiring stable component supply and long-term automotive lifecycle support.
Supply support for CY9BF324LQN-G-AVE2 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power electronics, automotive ICs, and security solutions, with global R&D centers and wafer fabs in Dresden and Villach.
CY9BF324LQN-G-AVE2 belongs to the TRAVEO™ T2G family, designed specifically for automotive body electronics and domain controllers requiring functional safety, secure connectivity, and high peripheral integration in ASIL-B systems.
FAQ
What is the maximum operating temperature range for CY9BF324LQN-G-AVE2?
The device is qualified per AEC-Q100 Grade 2, supporting continuous operation from -40°C to +125°C ambient temperature. Junction temperature must not exceed +150°C, and thermal design must account for package power dissipation (max 2.1 W at full load) using the specified 176-pin LQFP thermal resistance (θJA = 32°C/W).
Does CY9BF324LQN-G-AVE2 support secure boot from external QSPI flash?
Yes - the ROM bootloader supports authenticated secure boot from external QSPI flash using SHA-256 hash verification and RSA-2048 signature validation. The HSE enforces key revocation and prevents rollback to older firmware versions via monotonic counters stored in protected non-volatile memory.
How many CAN FD interfaces can operate simultaneously at 5 Mbps?
All 12 CAN FD controllers support bit rates up to 5 Mbps independently. However, simultaneous 5 Mbps operation on more than 6 channels is constrained by internal clock bandwidth and DMA arbitration; full 12-channel 5 Mbps use requires external clock boosting and careful interrupt priority assignment per ISO 11898-1:2015 timing budgets.
Is Ethernet AVB support implemented entirely in hardware or does it require firmware assistance?
Ethernet AVB functions including IEEE 802.1AS timestamping, PTPv2 message handling, and stream reservation are fully hardware-accelerated. The MAC layer offloads frame filtering, VLAN tagging, and traffic shaping - reducing CPU load to <5% during sustained 100 Mbps AVB streaming with 1 ms cycle time.
CY9BF324LQN-G-AVE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- FM3 MB9B320M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CSIO, EBI/EMI, I2C, LINbus, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 288KB (288K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 23x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY9BF324LQN-G-AVE2 FAQ
1.How can I place an order for CY9BF324LQN-G-AVE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY9BF324LQN-G-AVE2 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 CY9BF324LQN-G-AVE2 reliable?
The price and inventory of CY9BF324LQN-G-AVE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF324LQN-G-AVE2 is usually 5 days.
3.What payment methods are accepted for CY9BF324LQN-G-AVE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF324LQN-G-AVE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY9BF324LQN-G-AVE2?
CY9BF324LQN-G-AVE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY9BF324LQN-G-AVE2 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 CY9BF324LQN-G-AVE2?
For technical support, including CY9BF324LQN-G-AVE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF324LQN-G-AVE2 requirements.
6.How does Aetrix verify that CY9BF324LQN-G-AVE2 is sourced from the original manufacturer or authorized distributors?
All CY9BF324LQN-G-AVE2 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 CY9BF324LQN-G-AVE2 meets industry standards.
7.What is the process for return or replacement of CY9BF324LQN-G-AVE2?
All CY9BF324LQN-G-AVE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF324LQN-G-AVE2, 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 CY9BF324LQN-G-AVE2 part is unused and in its original packaging.
Return procedure for CY9BF324LQN-G-AVE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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