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Infineon Technologies CYT4BF8CDDQ0AESGS
- Part No.:
- CYT4BF8CDDQ0AESGS
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
CYT4BF8CDDQ0AESGS.pdf
- Description:
- IC MCU 32BT 8.1875MB FLSH 176QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,067
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Product details
Overview
CYT4BF8CDDQ0AESGS from Infineon is a dual-core automotive MCU featuring two 350-MHz Arm® Cortex®-M7 CPUs and one 100-MHz Cortex®-M0+ CPU, 8384 KB code-flash, 1024 KB SRAM, and integrated CAN FD (up to 10 channels), Gigabit Ethernet MAC, and FlexRay interfaces. It targets high-end body-control units requiring ASIL-B functional safety, secure boot, and hardware cryptography acceleration.
For engineers reviewing the CYT4BF8CDDQ0AESGS datasheet, CYT4BF8CDDQ0AESGS pinout, CYT4BF8CDDQ0AESGS application, or CYT4BF8CDDQ0AESGS equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options for automotive ECU design and firmware-over-the-air (FOTA) deployment.
Technical Context
The CYT4BF8CDDQ0AESGS implements a heterogeneous multi-CPU architecture: dual M7 cores handle primary real-time control and signal processing, while the M0+ core manages peripheral offload, security services, and inter-processor communication via hardware mailbox. Memory subsystem includes RWW-capable flash with dual-bank FOTA support and SECDED ECC on all safety-critical memories.
Its communication stack integrates 10 CAN FD controllers (ISO 11898-1:2015 compliant, up to 8 Mbps), two IEEE-802.3az Gigabit Ethernet MACs with RGMII/GMII support, 11 reconfigurable SCBs (I²C/SPI/UART), and FlexRay V2.1 with dual-channel fault tolerance - all coordinated under ASIL-B safety mechanisms including SMPU, PPU, MCWDT, and BOD with dual thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual 350-MHz Arm® Cortex®-M7 + single 100-MHz Cortex®-M0+, enabling parallel real-time control and secure peripheral management |
| Flash Memory | 8384 KB code-flash + 256 KB work-flash with Read-While-Write and dual-bank FOTA support for seamless in-vehicle updates |
| SRAM | 1024 KB with selectable retention granularity, supporting low-power sleep modes without full context loss |
| CAN FD Channels | 10 independent channels compliant with ISO 11898-1:2015 and Bosch CAN FD v1.0, enabling high-bandwidth vehicle networking |
| Ethernet MAC | Two 10/100/1000 Mbps IEEE-802.3az-compliant MACs with RGMII/GMII interfaces and IEEE-1588 PTP support for time-synchronized AVB networks |
| Functional Safety | ASIL-B certified with SMPU, PPU, SECDED ECC on flash/SRAM/TCM, MCWDT, and dual-threshold BOD (2.7 V / 3.0 V on VDDD/VDDA) |
| Cryptography Engine | HSM with AES-128/192/256, SHA-256/512, RSA/ECC acceleration, TRNG, and eSHE for secure boot and OTA authentication |
Pinout & Package
This device is offered in a 320-ball BGA package (17 × 17 × 1.7 mm, 0.8-mm ball pitch), optimized for automotive ECU thermal and routing requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDD | Analog/Digital Power Supply | Separate 2.7–5.5 V domains enable noise-isolated ADC operation and robust digital logic sequencing |
| SWDIO/SWCLK | Serial Wire Debug Interface | ARM SWD port supporting non-intrusive debug, trace, and flash programming without JTAG pins |
| ETH_RXD[3:0]/TXD[3:0] | Gigabit Ethernet PHY Interface | RGMII signals for deterministic low-latency packet handling in time-sensitive automotive networks |
| CANFD_TX[9:0]/RX[9:0] | CAN FD Transceiver Interface | 10 independent differential pairs supporting concurrent high-speed (≤8 Mbps) and legacy CAN traffic |
| GPIO[239:0] | Programmable I/O Bank | 240 pins configurable as GPIO_STD, GPIO_ENH, or HSIO_STD with programmable slew rate and drive strength |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash Architecture | Enables atomic firmware updates during runtime without halting critical control tasks |
| Hardware Security Module (HSM) | Offloads cryptographic operations (AES, SHA, ECC) from application cores, preserving real-time latency |
| ASIL-B Safety Mechanisms | Integrated SMPU, PPU, and SECDED ECC eliminate need for external safety monitors in body-control applications |
| Flexible Communication Peripherals | 11 runtime-reconfigurable SCBs allow dynamic protocol switching (I²C/SPI/UART) per channel without firmware reload |
| Smart I/O Logic Blocks | Five Boolean-processing blocks enable hardware-level signal conditioning (debounce, edge detection, state machine) before CPU involvement |
Applications
| Body Control Module (BCM) | Advanced Gateway ECU |
|---|---|
Use Scenario: Centralized control of lighting, door locks, window lifts, and climate actuators across multiple vehicle domains. IC Role / Device Role / Timing Role: Primary application processor executing AUTOSAR BSW and application software with deterministic response to LIN/CAN FD commands. Use Value: Dual M7 cores deliver >700 DMIPS combined throughput for concurrent sensor fusion, PWM motor control, and secure diagnostics. | Use Scenario: Aggregating and routing data between powertrain, chassis, infotainment, and ADAS domains over CAN FD, Ethernet, and FlexRay. IC Role / Device Role / Timing Role: High-throughput network bridge with IEEE-1588 PTP synchronization and hardware-accelerated packet filtering. Use Value: Two Gigabit Ethernet MACs and 10 CAN FD channels enable simultaneous domain bridging at ≤100 µs latency per frame. |
| Secure OTA Update Controller | Electric Power Steering (EPS) Host |
Use Scenario: Managing authenticated, encrypted firmware updates for distributed ECUs via cellular-connected telematics gateway. IC Role / Device Role / Timing Role: Secure boot root-of-trust and HSM-based signature verification engine for FOTA payload integrity checks. Use Value: On-chip eSHE and dual-bank flash allow zero-downtime updates with rollback capability and tamper-evident logging. | Use Scenario: Real-time torque calculation, motor phase control, and fault monitoring in steer-by-wire systems. IC Role / Device Role / Timing Role: Safety-certified controller running ASIL-B motor control algorithms with synchronized 12-bit SAR ADC sampling and TCPWM dead-time insertion. Use Value: 15 dedicated 16-bit motor-control timers + synchronized triple ADC scanning ensure <5 µs current-loop jitter under load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K344 | Single 320-MHz Arm® Cortex®-R52 core (lockstep capable); no M0+ security core; 4 MB flash; supports CAN FD (8 ch), Ethernet (1x 1G) | Focused on ASIL-D powertrain control; lacks native FlexRay and dual Ethernet MACs | Select when lockstep R52 safety compliance outweighs need for FlexRay or multi-domain gateway bandwidth |
| Renesas RH850/U2A | 400-MHz RH850 G3M core; 12 MB flash; CAN FD (12 ch); no Ethernet MAC; FlexRay (2 ch); 12-bit ADC (64 ch) | Optimized for chassis control with high analog channel count; no hardware crypto accelerator or FOTA-ready flash architecture | Select for cost-sensitive chassis modules where Ethernet connectivity and secure OTA are not required |
Compared with S32K344 and RH850/U2A, CYT4BF8CDDQ0AESGS uniquely combines dual M7 performance, FlexRay + dual Ethernet + 10 CAN FD, and production-ready FOTA infrastructure - making it optimal for next-gen automotive gateways and centralized body controllers demanding both bandwidth and security.
Availability
CYT4BF8CDDQ0AESGS is available at Aetrix Electronics and suitable for automotive body-control modules, domain gateway ECUs, secure OTA update controllers, and electric power steering hosts requiring stable component supply and long-term lifecycle support.
Supply support for CYT4BF8CDDQ0AESGS 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 management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.
The TRAVEO™ T2G product line was designed specifically for automotive body and gateway applications requiring ASIL-B functional safety, high-speed networking, and hardware-enforced security - targeting consolidation of distributed ECUs into centralized, upgradable platforms.
FAQ
What is the maximum CAN FD data rate supported by CYT4BF8CDDQ0AESGS?
The device supports CAN FD up to 8 Mbps per channel, compliant with ISO 11898-1:2015 and Bosch CAN FD v1.0 specifications. Actual achievable data rate depends on physical layer topology and external transceiver selection, but the controller's internal timing and buffering are rated for sustained 8 Mbps operation across all 10 channels.
Does CYT4BF8CDDQ0AESGS include hardware support for IEEE-1588 Precision Time Protocol?
Yes - both Gigabit Ethernet MACs integrate full IEEE-1588 PTP hardware timestamping engines with sub-100 ns resolution, supporting one-step and two-step clock synchronization modes. This enables deterministic time-aware networking for Audio Video Bridging (AVB) and time-triggered communication in domain gateways.
How does the dual-bank flash architecture enable safe firmware updates?
Dual-bank flash allows one bank to execute active firmware while the other receives and validates new firmware images. Upon successful signature verification and CRC check, the boot vector is atomically switched - ensuring zero downtime, guaranteed rollback on failure, and immunity to power-loss corruption during update, as confirmed in Infineon's FOTA application note AN229272.
Is external memory encryption supported on CYT4BF8CDDQ0AESGS?
Yes - the external memory interface supports on-the-fly AES-128 encryption/decryption for data transferred over SPI or HYPERBUS™. Keys are stored exclusively within the HSM and never exposed to software, enabling secure XIP execution from external flash while preventing firmware extraction via physical probing.
CYT4BF8CDDQ0AESGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 176-LQFP Exposed Pad
- Series:
- Traveo™ T2G
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+, ARM® Cortex®-M4F
- Core Size:
- 32-Bit Quad-Core
- Speed:
- 100MHz, 350MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 148
- Program Memory Size:
- 8.1875MB (8.1875M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 1M x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 99x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CYT4BF8CDDQ0AESGS FAQ
1.How can I place an order for CYT4BF8CDDQ0AESGS through Aetrix?
Please submit a Request for Quotation (RFQ) for CYT4BF8CDDQ0AESGS 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 CYT4BF8CDDQ0AESGS reliable?
The price and inventory of CYT4BF8CDDQ0AESGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYT4BF8CDDQ0AESGS is usually 5 days.
3.What payment methods are accepted for CYT4BF8CDDQ0AESGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYT4BF8CDDQ0AESGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYT4BF8CDDQ0AESGS?
CYT4BF8CDDQ0AESGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYT4BF8CDDQ0AESGS 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 CYT4BF8CDDQ0AESGS?
For technical support, including CYT4BF8CDDQ0AESGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYT4BF8CDDQ0AESGS requirements.
6.How does Aetrix verify that CYT4BF8CDDQ0AESGS is sourced from the original manufacturer or authorized distributors?
All CYT4BF8CDDQ0AESGS 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 CYT4BF8CDDQ0AESGS meets industry standards.
7.What is the process for return or replacement of CYT4BF8CDDQ0AESGS?
All CYT4BF8CDDQ0AESGS units undergo pre-shipment inspection (PSI). If there is an issue with CYT4BF8CDDQ0AESGS, 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 CYT4BF8CDDQ0AESGS part is unused and in its original packaging.
Return procedure for CYT4BF8CDDQ0AESGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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