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Infineon Technologies TC399XX256F300SBCLXUMA1
- Part No.:
- TC399XX256F300SBCLXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 516-LFBGA
- Datasheet:
-
TC399XX256F300SBCLXUMA1.pdf
- Description:
- IC MCU 32BIT 16MB FLASH 516LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,924
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Product details
Overview
TC399XX256F300SBCLXUMA1 from Infineon is a 32-bit TriCore™ microcontroller with 2.5 MB flash, 300 MHz CPU frequency, and integrated Ethernet MAC, designed for automotive body control modules requiring ASIL-D functional safety compliance.
For engineers reviewing the TC399XX256F300SBCLXUMA1 datasheet, TC399XX256F300SBCLXUMA1 pinout, TC399XX256F300SBCLXUMA1 application, or TC399XX256F300SBCLXUMA1 equivalent, key selection criteria include dual-core lockstep operation, 128 KB SRAM with ECC, Ethernet PHY interface support, and AURIX™ safety mechanisms including end-to-end data protection and memory built-in self-test (MBIST).
Technical Context
The TC399XX256F300SBCLXUMA1 integrates two TriCore™ TC1.6P cores in lockstep configuration with 2.5 MB on-chip flash (with ECC), 128 KB SRAM (with ECC), and 48 KB PSRAM. It supports ASIL-D via hardware safety mechanisms including CPU core monitoring, memory test controllers, and peripheral safety channels.
It features an integrated 10/100 Mbps Ethernet MAC with IEEE 1588 timestamping, six CAN FD controllers (ISO 11898-1:2015 compliant), and 12x ADC units with up to 24-bit resolution and 1 MS/s sampling rate - all accessible under safety-managed execution contexts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | TriCore™ TC1.6P dual-core lockstep, 300 MHz - enables ASIL-D-compliant real-time control with redundancy checking |
| Flash Memory | 2.5 MB with ECC and read-while-write capability - supports safe firmware updates without interruption |
| SRAM | 128 KB with ECC and parity - provides fault-tolerant data storage for safety-critical variables |
| Ethernet Interface | 10/100 Mbps MAC with IEEE 1588 v2 hardware timestamping - enables time-synchronized communication in vehicle networks |
| CAN FD Channels | 6 × ISO 11898-1:2015 compliant controllers - supports high-bandwidth diagnostics and ECU coordination |
| ADC Resolution | Up to 24-bit with 1 MS/s sampling - delivers precision sensor acquisition for battery management and thermal monitoring |
Pinout & Package
TC399XX256F300SBCLXUMA1 is housed in a 292-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP | Core power supply (1.3 V) | Supplies regulated voltage to CPU and safety logic; requires low-noise filtering per AURIX™ layout guidelines |
| VDDIO | I/O power supply (3.3 V) | Drives all digital I/O banks; supports 5 V tolerant inputs on selected pins |
| ETH_RXD0–ETH_RXD1 | Ethernet receive data pair | Differential input for 10/100 Mbps MII/RMII; routed with controlled impedance (50 Ω ±10%) |
| ETH_TXD0–ETH_TXD1 | Ethernet transmit data pair | Differential output for 10/100 Mbps MII/RMII; requires 50 Ω series termination |
| OSC_IN / OSC_OUT | Crystal oscillator interface | Supports 20 MHz fundamental-mode crystal for system clock generation with ±50 ppm stability |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep execution | Hardware-enforced instruction-level comparison between two TriCore™ cores for continuous fault detection |
| Memory BIST and ECC | On-chip MBIST engine performs full SRAM/PSRAM/flash test at startup and runtime; ECC corrects single-bit errors |
| Safety interrupt controller (SIC) | Dedicated interrupt arbiter with priority masking and error injection support for ISO 26262 FMEDA validation |
| Peripheral safety channels | Independent safety monitors for GPT12, CCU6, and SENT peripherals ensure timing and data integrity |
Applications
| Body Control Module (BCM) | Gateway ECU |
|---|---|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC actuators in modern vehicles. IC Role / Device Role / Timing Role: Primary safety-certified MCU executing ASIL-B software partitions with lockstep supervision for critical outputs. Use Value: Enables centralized fail-safe actuator control with diagnostic coverage >99% per ISO 26262 Part 5 Annex D. | Use Scenario: Aggregation and routing of CAN FD, LIN, and Ethernet traffic between domain ECUs in zonal architectures. IC Role / Device Role / Timing Role: High-throughput gateway processor with time-synchronized packet forwarding using IEEE 1588 timestamps. Use Value: Reduces inter-domain latency to <100 µs while maintaining ASIL-B data integrity across network boundaries. |
| Electric Power Steering (EPS) | Battery Management System (BMS) Master |
Use Scenario: Real-time torque assist calculation and motor phase control with functional safety monitoring. IC Role / Device Role / Timing Role: Safety controller running ASIL-D motor control algorithms with dual-core lockstep and watchdog co-processor. Use Value: Achieves <10 µs worst-case interrupt latency for torque loop closure and failsafe torque reduction within 5 ms. | Use Scenario: Monitoring cell voltages, temperatures, and isolation resistance across 12–24 series-connected Li-ion cells. IC Role / Device Role / Timing Role: Safety-certified master controller managing daisy-chained analog front-ends and performing SOC/SOH estimation. Use Value: Supports 24-bit ADC acquisition with <±1 mV accuracy and end-to-end CRC protection for all telemetry data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TC377TP128F300NACXUMA1 | Single-core TriCore™, 1.2 MB flash, no Ethernet MAC, 3x CAN FD | Limited to ASIL-B applications without Ethernet backbone requirements | Select when cost-sensitive body control needs lower integration and no time-synchronized networking |
| TC397XP256F300SBCUMA1 | Same dual-core lockstep and flash size, but uses QFP-292 package without thermal pad and lacks IEEE 1588 support | Suitable for non-under-hood applications where thermal margin is less constrained | Choose for space-constrained layouts where thermal pad mounting is impractical |
Compared with TC377TP128F300NACXUMA1, this part adds Ethernet + ASIL-D capability; compared with TC397XP256F300SBCUMA1, it improves thermal performance and adds hardware timestamping - both critical for gateway and EPS deployments.
Availability
TC399XX256F300SBCLXUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, electric power steering systems, and battery management system masters requiring stable component supply and long-term lifecycle assurance.
Supply support for TC399XX256F300SBCLXUMA1 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 MCUs, and security solutions, with global R&D centers and automotive-grade manufacturing facilities.
This device belongs to the AURIX™ TC3xx family, engineered specifically for ASIL-D automotive applications including chassis, powertrain, and ADAS domains where deterministic real-time performance and fault containment are mandatory.
FAQ
What safety certifications does TC399XX256F300SBCLXUMA1 support?
TC399XX256F300SBCLXUMA1 is certified to ISO 26262 ASIL-D at the hardware level, with FMEDA reports, safety manuals, and diagnostic libraries provided by Infineon. It supports ASIL-D decomposition when used with certified software stacks and external safety monitors per ISO 26262 Part 10.
Does this MCU include an integrated Ethernet PHY?
No - TC399XX256F300SBCLXUMA1 integrates only the Ethernet MAC layer. An external PHY (e.g., Infineon TLF35584 or compatible IEEE 802.3-compliant device) is required for physical layer signaling, with RMII/MII interface support and precise timing alignment.
What debug interface is supported for development and testing?
The device supports JTAG and DAP (Debug Access Port) interfaces via the Infineon DAS (Debug Adapter System), enabling full-core visibility, trace capture, and safety-related register inspection. AURIX™ Development Studio and iLLD library provide validated drivers for debug probe integration.
How is flash programming handled during production?
Production programming uses Infineon's MemTool with SPC5/SPC5-compatible boot ROM, supporting UART, CAN FD, and Ethernet-based flashing. Secure boot with SHA-256 signature verification and encrypted firmware loading (AES-128) are enabled via dedicated boot ROM keys and HSM support.
TC399XX256F300SBCLXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 516-LFBGA
- Series:
- AURIX™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- TriCore™
- Core Size:
- 32-Bit 6-Core
- Speed:
- 300MHz
- Connectivity:
- ASC, CANbus, Ethernet, FlexRay, HSSL, I2C, LINbus, MSC, PSI, QSPI, SENT
- Peripherals:
- DMA, I2S, PWM, WDT
- Number of I/O:
- -
- Program Memory Size:
- 16MB (16M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6.75M x 8
- Voltage - Supply (Vcc/Vdd):
- 3.3V, 5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TC399XX256F300SBCLXUMA1 FAQ
1.How can I place an order for TC399XX256F300SBCLXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TC399XX256F300SBCLXUMA1 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 TC399XX256F300SBCLXUMA1 reliable?
The price and inventory of TC399XX256F300SBCLXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC399XX256F300SBCLXUMA1 is usually 5 days.
3.What payment methods are accepted for TC399XX256F300SBCLXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC399XX256F300SBCLXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC399XX256F300SBCLXUMA1?
TC399XX256F300SBCLXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC399XX256F300SBCLXUMA1 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 TC399XX256F300SBCLXUMA1?
For technical support, including TC399XX256F300SBCLXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC399XX256F300SBCLXUMA1 requirements.
6.How does Aetrix verify that TC399XX256F300SBCLXUMA1 is sourced from the original manufacturer or authorized distributors?
All TC399XX256F300SBCLXUMA1 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 TC399XX256F300SBCLXUMA1 meets industry standards.
7.What is the process for return or replacement of TC399XX256F300SBCLXUMA1?
All TC399XX256F300SBCLXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TC399XX256F300SBCLXUMA1, 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 TC399XX256F300SBCLXUMA1 part is unused and in its original packaging.
Return procedure for TC399XX256F300SBCLXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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