Infineon Technologies CYT4BB8CEBQ0AESGS

Overview

CYT4BB8CEBQ0AESGS from Infineon is a TRAVEO™ T2G 32-bit automotive microcontroller featuring dual 250-MHz Arm® Cortex®-M7 CPUs and one 100-MHz Cortex®-M0+ CPU, 4160 KB code-flash, 768 KB SRAM, and hardware-accelerated cryptography (AES-128/192/256, ECC, SHA-256/512, TRNG). It supports CAN FD (up to 8 Mbps), 10/100 Ethernet MAC with IEEE-1588 PTP, and ASIL-B functional safety for high-end body-control units.

For engineers reviewing the CYT4BB8CEBQ0AESGS datasheet, CYT4BB8CEBQ0AESGS pinout, CYT4BB8CEBQ0AESGS application, or CYT4BB8CEBQ0AESGS equivalent, key selection considerations include dual-core deterministic real-time execution, FOTA-ready dual-bank flash architecture, integrated HSM/eSHE security, and automotive-grade power management across Hibernate, DeepSleep, and Low-power Active modes.

Technical Context

The device implements a heterogeneous multi-CPU subsystem where dual Cortex®-M7 cores handle primary application tasks with 16-KB I/D cache and TCM, while the Cortex®-M0+ manages peripheral offload and secure boot verification. Inter-processor communication is implemented in hardware with dedicated mailbox and semaphore resources.

Functional safety is architected via SMPU, PPU, SECDED ECC on all safety-critical memories (flash, SRAM, TCM), MCWDT, CSV, and dual-threshold BOD (2.7 V / 3.0 V on VDDD/VDDA; 1.1 V on VCCD), meeting ASIL-B requirements per ISO 26262.

Key Specifications

Pinout & Package

This device is packaged in a 272-ball BGA (16 × 16 × 1.7 mm, 0.8-mm ball pitch) with thermal pad. Pin functions are defined per the CYT4BB series peripheral I/O map and ball assignment table in Infineon's 002-26591 Rev. *H datasheet.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with S32K344 and RH850/U2A, CYT4BB8CEBQ0AESGS uniquely combines dual M7 cores, on-die Ethernet MAC with PTP, dual-bank flash for FOTA, and HSM-based security - making it optimal for next-gen zonal gateways requiring concurrent real-time, networking, and secure update capabilities.

Availability

CYT4BB8CEBQ0AESGS is available at Aetrix Electronics and suitable for automotive body-control modules, zonal gateway ECUs, electric power steering monitors, and secure telematics units requiring stable component supply, long-term lifecycle assurance, and ASIL-B compliance.

Supply support for CYT4BB8CEBQ0AESGS 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 and manufacturing infrastructure.

CYT4BB belongs to the TRAVEO™ T2G family, designed specifically for automotive domain controllers and zonal gateways requiring real-time dual-core processing, integrated Ethernet, CAN FD, and hardware-enforced security.

FAQ

What is the maximum CAN FD data rate supported by CYT4BB8CEBQ0AESGS?

The device supports CAN FD up to 8 Mbps in data phase, compliant with ISO 11898-1:2015 and Bosch CAN FD Specification v1.0. Achievable rate depends on physical layer topology and external transceiver capability; the controller itself imposes no lower-layer limitation beyond protocol stack configuration.

Does CYT4BB8CEBQ0AESGS include an integrated Ethernet PHY?

No, CYT4BB8CEBQ0AESGS integrates only a 10/100 Mbps Ethernet MAC. External PHY connectivity is required via MII or RMII interface; the device supports both standards and provides necessary clocking, control, and data signals for direct connection to industry-standard PHY ICs.

How is functional safety implemented for ASIL-B compliance?

ASIL-B compliance is achieved through hardware-enforced mechanisms: SECDED ECC on flash, SRAM, and TCM; shared memory protection unit (SMPU); peripheral protection unit (PPU); multi-counter watchdog timer (MCWDT); dual-threshold brown-out detection; and clock supervisor (CSV), all documented in Infineon's safety manual for CYT4BB.

Can the dual Cortex-M7 cores operate independently with separate memory spaces?

Yes - each Cortex-M7 core has dedicated 16-KB instruction and 16-KB data TCM, plus private 16-KB I/D caches. Shared resources (e.g., main SRAM, flash, peripherals) are managed via hardware inter-processor communication (IPC) with mailboxes and semaphores, enabling true asymmetric multiprocessing (AMP) or symmetric (SMP) configurations.