Automotive connected gateways
Performance and security for today’s automotive connected gateways
When designing central gateway applications for cars, the two biggest success factors are performance and security. As the central hub for internal and external communications, today's connected gateways must deliver significantly more processing power and data throughput than their predecessors. At the same time, connected gateways play an indispensable role in protecting the vehicle from cyber-attacks, and in enabling new IoT services like car sharing, software updates over the air (SOTA), and predictive maintenance.
Meeting evolving gateway challenges
With Infineon’s solutions for connected gateways, designers no longer have to trade performance for security. Our AURIX™ family of automotive microcontrollers, for instance, strikes the perfect balance between cutting-edge performance and robust, scalable cybersecurity. Scalability in mind, Traveo™ devices enable faster in-car communication and have advanced security features with the introduction of HSM, dedicated Cortex®-M0+ for secure processing, and embedded flash in dual bank mode for FOTA requirements. For further hardening, the most neuralgic points of the E/E architecture against observative, semi-invasive, manipulative, and other attacks, our OPTIGA™ TPM 2.0 security controller can be combined with the AURIX™ or Traveo™ 32-bit microcontroller and any application processor. For this very reason, leading German vehicle manufacturers selected OPTIGA™ TPM 2.0 as the security solution of choice for their connected cars.
System Diagram: Connected Gateway
Products
Gate Driver IC：AUIRS2301S
Linear regulator：TLF4277EL, TLE4267G, TLS805B1SJV, TLS850D0TA V33, TLE42694GM
CAN Transceiver：TLE9252VLC, TLE9251VSJ, TLE9254LC, TLE6251-2G
Telematics：
Body and Comfort：
PMIC with Safety Watchdog：TLF35584QVVS2, TLF35584QVVS1, TLF35584QKVS2
Automotive MOSFET：AUIRF7379Q, IPZ40N04S5-8R4, IPC100N04S5L-2R6, IPD26N06S2L-35, IPB70N04S4-06
Secure Element：SLI 97CSINFX1M00PE, SLI 97CSINFX8000PE, SLI37CMXXX
NOR flash memory：
LIN Transceiver：TLE7259-3GE
High-Side Switch：BTS72220-4ESA, BTS71220-4ESE, BTS71033-6ESA, BTS7200-2EPA, BTS7080-2EPA
OPTIGA™ TPM：SLI 9670
Microcontroller：SAK-TC377TX-96F300S AB, SAK-TC397XX-256F300S BC, SAL-TC397XP-256F300S BC, SAL-TC298TP-128F300N BC
System Basis Chip (SBC)：TLE9278BQX V33, TLE9278-3BQX, TLE9273QX, TLE9278-3BQX V33, TLE9263BQX V33
Low-Side Switches：BTS3050EJ, BTS3408G, TLE8110ED, TLE8718SA
LED Driver：TLE4241GM, TLD2331-3EP, TLD1124EL
Chassis and Safety：
F-RAM：
Function block explanation
The power supply subsystem feeds power to the processors, communication interfaces, and various circuits on the PCB. Depending on the overall current consumption and connectivity requirements, this subsystem can be realized using integrated solutions (System Basis Chips, SBCs) or discrete components. The processor subsystem consists of a single microcontroller, multiple microcontrollers, or a microcontroller/microprocessor combination depending on overall system partitioning and performance requirements. Regardless of the partitioning, the AURIX™ automotive microcontroller as a gateway provides the necessary physical isolation and protocol translation to safely route messages between the different functional domains. The security subsystem consists of two main components: AURIX™ and Traveo™ with their embedded Hardware Security Module (EVITA HSM full version) for real-time security-critical use cases and the OPTIGA™ TPM security controller to harden the entire E/E architecture more effectively while also enabling new use cases.
Excelon F-RAM system life expectancy calculation
ExcelonTM F-RAM™, like any other nonvolatile memory technology, is subject to physical degradation that can eventually lead to device failure if not addressed appropriately. F-RAM write/read endurance and data retention are the two end-of-life (EoL ) parameters to specify its reliability and performance in a system. Learn more about the F-RAM data retention performance at various operating temperatures and find a method and guidance to accurately calculate the system's EoL based on its operating temperature profile. Check the application note.
Mid feature automotive gateway
Slightly optimizes system costs, both hardware (some reduction in wire harness, size, space, weight) and software, without high development effort as new functionalities (ADAS, Telematics, etc.) emerge to make space in the vehicle for them. Drawback; PCB, module, and EMC design challenges as more power and logic functions are merged.
Entry feature automotive gateway
Scalable platform in performance and in cost, some software reuse for OEM and Tier1 for multiple platforms. Main drawback; high count of vehicle electronic control units (ECU) and heavy vehicle wire harness.
With Semper NOR Flash Memory Infineon provides the newest high-performance, safe, and reliable NOR Flash memory solution. Semper NOR integrates critical safety features and is the industry's first ASIL-B compliant and ASIL-D-ready NOR Flash memory.
NOR Flash Memory | S26HS512TGABHM010 | S25HL512TDPBHM010 | S25FL256LAGBHM020 | S26KS256SDPBHM020 | S26HS01GTFPBHM030 | S25HL01GTFABHM030 |
F-RAM for Automotive markets provides fast writes at full interface speed. F-RAM does not have any write delays and data is instantly nonvolatile. Traditional nonvolatile memories have delays of 5 or more milliseconds before data becomes nonvolatile. If power is disrupted, pending data is lost unless the system has extra capacitance or batteries to keep the system on until data is stored.
F-RAM offers virtually unlimited endurance of 100 trillion read/write cycles. Traditional nonvolatile memories typically have less than 1 million cycle endurance, forcing system designers to use complex wear-leveling routines and up to 4x more density to prolong the lifetime of these memories.
CY15B104QN-50SXAT | CY15B102QN-50SXE | CY15B256Q-SXAT | CY15B128Q-SXE | CY15B064Q-SXE |
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