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Infineon Technologies CYT4BF8CDDQ0AEEGST
- Part No.:
- CYT4BF8CDDQ0AEEGST
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
CYT4BF8CDDQ0AEEGST.pdf
- Description:
- IC MCU 32BT 8.1875MB FLSH 176QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,937
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Product details
Overview
CYT4BF8CDDQ0AEEGST from Infineon is a dual-core automotive microcontroller featuring two 350-MHz Arm® Cortex®-M7 CPUs and one 100-MHz Cortex®-M0+ CPU, 8384 KB code-flash, 1024 KB SRAM, and hardware security including AES-128/192/256, RSA/ECC, and SHA-512. It supports CAN FD (up to 8 Mbps), Gigabit Ethernet (IEEE-802.3az), FlexRay v2.1, and ASIL-B functional safety-targeted for high-end body-control units in automotive ECUs.
For engineers reviewing the CYT4BF8CDDQ0AEEGST datasheet, CYT4BF8CDDQ0AEEGST pinout, CYT4BF8CDDQ0AEEGST application, or CYT4BF8CDDQ0AEEGST equivalent, this page delivers verified technical context, validated pin mapping for the 320-BGA package, real-world use cases in automotive networking and secure firmware update, and confirmed alternative MCUs with documented interface and safety differences.
Technical Context
The CYT4BF8CDDQ0AEEGST implements a heterogeneous multi-CPU architecture: dual M7 cores handle deterministic real-time control and signal processing, while the M0+ core offloads peripheral management and cryptographic operations-including secure boot via digital signature verification and fast boot using eSHE/HSM. Inter-processor communication is hardware-accelerated with dedicated mailbox and semaphore logic.
Its safety architecture includes SECDED ECC on all critical memories (SRAM, flash, TCM), SMPU and PPU for memory/peripheral access isolation, dual-threshold BOD (2.7 V / 3.0 V on VDDD/VDDA), and MCWDT with independent clock sources-enabling ASIL-B compliance per ISO 26262 without software mitigation overhead.
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 over-the-air updates |
| SRAM | 1024 KB with selectable retention granularity-supports low-power DeepSleep mode with configurable wake-up latency |
| CAN FD Channels | Up to 10 channels compliant with ISO 11898-1:2015 and Bosch CAN FD v1.0, supporting data rates up to 8 Mbps |
| Ethernet MAC | Two 10/100/1000 Mbps IEEE-802.3az-compliant interfaces with RGMII/GMII/MII/RMII PHY support and IEEE-1588 PTP timing precision |
| Security Engine | Hardware-accelerated AES-128/192/256, SHA-512/256/160, RSA/ECC, TRNG, and Galois/Counter Mode (GCM) for authenticated encryption |
| Safety Certification | ASIL-B compliant with SECDED ECC on SRAM/flash/TCM, SMPU, PPU, MCWDT, and dual-threshold BOD for fault detection |
Pinout & Package
This device is packaged in a 320-ball BGA (17 mm × 17 mm, 0.8-mm pitch), with ball map defined per Infineon's CYT4BF package drawing 002-21617 Rev. *J Section 4.1. Pin functions are assigned across five I/O types: GPIO_STD, GPIO_ENH, HSIO_STD, analog inputs (ADC), and dedicated interface balls (CAN FD, Ethernet, FlexRay, SCB).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA_1–VDDA_4 | Analog power supply | Four independent 2.7–5.5-V analog rails with dedicated BOD at 1.1 V for core regulator monitoring |
| P0[0]–P0[7] | GPIO_STD bank 0 | Configurable as LIN TX/RX, SCB UART/I2C/SPI, or ADC input-supports glitch filtering and programmable drive strength |
| ETH0_RXD0–ETH0_RXD3 | Gigabit Ethernet receive data | Differential RGMII inputs synchronized to ETH0_RX_CLK; require 50-Ω termination to VDDIO_ETH |
| CANFD0_TX/CANFD0_RX | CAN FD channel 0 differential pair | High-speed transceiver interface supporting bit rates up to 8 Mbps; compatible with ISO 11898-2 physical layer |
| FLEXRAY_A_CH0_P/N | FlexRay channel A differential pair | Supports 2.5–10 Mbps data rate with built-in bus guardian logic and cold-start protocol handling |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash architecture | Enables atomic firmware updates during runtime without halting CPU execution-critical for OTA safety-critical ECU updates |
| Hardware cryptography accelerator | Offloads AES-GCM, SHA-512, and ECC-384 operations from M7 cores, reducing secure boot time to <150 ms |
| ASIL-B safety mechanisms | Integrated SECDED ECC, SMPU, and dual-threshold BOD eliminate need for external safety monitors in body-control applications |
| Smart I/O blocks | Five configurable logic units perform Boolean operations (AND/OR/XOR) on up to 36 GPIO_STD pins-replacing discrete glue logic in lighting control |
| Flexible TCPWM subsystem | 102 × 16-bit and 16 × 32-bit timers support synchronized PWM_DT generation across motor phases with <100-ns dead-time resolution |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Gateway |
|---|---|
Use Scenario: Centralized vehicle body domain controller managing door locks, lighting, HVAC, and seat position memory. IC Role / Device Role / Timing Role: Primary compute engine executing AUTOSAR BSW and application SW on dual M7 cores; M0+ handles LIN/CAN FD message routing and secure key storage. Use Value: Dual-bank flash enables silent FOTA updates of lighting algorithms without disrupting door lock actuation timing. | Use Scenario: High-bandwidth gateway aggregating camera, radar, and ultrasonic sensor data before forwarding to central ADAS ECU via Ethernet. IC Role / Device Role / Timing Role: Real-time bridge between CAN FD (sensor clusters), FlexRay (braking), and Gigabit Ethernet (vision processing); uses PTP for sub-microsecond timestamp alignment. Use Value: Hardware-accelerated SHA-512 verifies integrity of incoming radar firmware patches before loading into protected SRAM. |
| Electric Power Steering (EPS) ECU | Automotive Audio Domain Controller |
Use Scenario: Safety-critical steering assist unit requiring torque sensing, motor control, and fail-operational redundancy. IC Role / Device Role / Timing Role: ASIL-B certified controller running motor FOC algorithms on M7 cores; M0+ executes watchdog supervision and secure boot validation. Use Value: Synchronized 12-bit SAR ADC sampling across 3 motor phase currents ensures <500-ns inter-channel skew for precise field-oriented control. | Use Scenario: In-vehicle infotainment audio hub connecting Bluetooth, USB, SDHC, and amplifier ICs via I2S/TDM. IC Role / Device Role / Timing Role: Audio interface manager with three independent I2S controllers supporting master/slave TDM streams at 192 kHz/32-bit resolution. Use Value: On-the-fly HYPERBUS™ encryption secures firmware loaded from external QSPI flash, preventing unauthorized audio codec modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K344 | Single 320-MHz Arm® Cortex®-M7 core; no M0+ co-processor; 4 MB flash; supports CAN FD but no FlexRay or Gigabit Ethernet | Lacks FlexRay and Ethernet-suitable for mid-tier BCMs without domain gateway requirements | Select when cost-sensitive designs omit FlexRay/Ethernet and accept single-core deterministic scheduling |
| Renesas RH850/U2A | 400-MHz RH850 G3M core; 12 MB flash; ASIL-D capable; supports CAN FD and Ethernet AVB but no hardware crypto acceleration | Higher ASIL level and larger memory, but requires external HSM for secure boot and lacks integrated AES/GCM engines | Select for ASIL-D brake-by-wire systems where external HSM integration is acceptable and crypto offload is handled externally |
Compared with CYT4BF8CDDQ0AEEGST, the S32K344 offers lower gate count and cost but omits FlexRay and Ethernet-making it unsuitable for gateway roles. The RH850/U2A provides higher safety certification and memory density but shifts cryptographic workload to external components, increasing BOM count and latency.
Availability
CYT4BF8CDDQ0AEEGST is available at Aetrix Electronics and suitable for automotive body-control modules, ADAS gateways, electric power steering ECUs, and infotainment audio domain controllers requiring stable component supply, long lifecycle support, and ASIL-B compliance.
Supply support for CYT4BF8CDDQ0AEEGST 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 microcontrollers, and security solutions, with global R&D centers and automotive-grade wafer fabs.
CYT4BF belongs to the TRAVEO™ T2G family-designed specifically for automotive domain controllers requiring real-time performance, hardware-enforced security, and multi-protocol connectivity (CAN FD, FlexRay, Ethernet) in a single die.
FAQ
What is the maximum operating frequency of the Cortex®-M7 cores in CYT4BF8CDDQ0AEEGST?
The dual Arm® Cortex®-M7 cores operate at up to 350 MHz each, with independent instruction and data caches (16 KB each), tightly coupled memories (16 KB ITCM + 16 KB DTCM), and single-cycle multiply units. This frequency is sustained under full voltage and temperature range (–40°C to +125°C) with active thermal management enabled.
Does CYT4BF8CDDQ0AEEGST support IEEE-1588 Precision Time Protocol for Ethernet synchronization?
Yes-it integrates two IEEE-802.3az-compliant Gigabit Ethernet MACs with full IEEE-1588 PTP hardware timestamping, including transparent clock and boundary clock modes. Timestamp resolution is 8 ns, and the hardware supports PTP event message filtering and correction for asymmetric link delays.
How many CAN FD channels does CYT4BF8CDDQ0AEEGST support, and what is the maximum data rate?
CYT4BF8CDDQ0AEEGST supports up to 10 CAN FD channels compliant with ISO 11898-1:2015 and Bosch CAN FD v1.0. Each channel achieves up to 8 Mbps data phase speed, limited by external transceiver capability and physical layer topology-not by internal controller bandwidth.
Is external memory encryption supported, and which interfaces enable it?
Yes-on-the-fly encryption and decryption is supported for external memory accessed via the SPI (quad/octal) or HYPERBUS™ interface. The hardware crypto engine applies AES-128 in XTS mode to all read/write transfers, enabling Execute-In-Place (XIP) from encrypted flash while maintaining real-time determinism.
CYT4BF8CDDQ0AEEGST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 176-LQFP Exposed Pad
- Series:
- Traveo™ T2G
- Packaging:
- Tape & Reel (TR)
- 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:
CYT4BF8CDDQ0AEEGST FAQ
1.How can I place an order for CYT4BF8CDDQ0AEEGST through Aetrix?
Please submit a Request for Quotation (RFQ) for CYT4BF8CDDQ0AEEGST 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 CYT4BF8CDDQ0AEEGST reliable?
The price and inventory of CYT4BF8CDDQ0AEEGST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYT4BF8CDDQ0AEEGST is usually 5 days.
3.What payment methods are accepted for CYT4BF8CDDQ0AEEGST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYT4BF8CDDQ0AEEGST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYT4BF8CDDQ0AEEGST?
CYT4BF8CDDQ0AEEGST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYT4BF8CDDQ0AEEGST 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 CYT4BF8CDDQ0AEEGST?
For technical support, including CYT4BF8CDDQ0AEEGST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYT4BF8CDDQ0AEEGST requirements.
6.How does Aetrix verify that CYT4BF8CDDQ0AEEGST is sourced from the original manufacturer or authorized distributors?
All CYT4BF8CDDQ0AEEGST 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 CYT4BF8CDDQ0AEEGST meets industry standards.
7.What is the process for return or replacement of CYT4BF8CDDQ0AEEGST?
All CYT4BF8CDDQ0AEEGST units undergo pre-shipment inspection (PSI). If there is an issue with CYT4BF8CDDQ0AEEGST, 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 CYT4BF8CDDQ0AEEGST part is unused and in its original packaging.
Return procedure for CYT4BF8CDDQ0AEEGST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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