TC297TP128F300SBCKXUMA1
TC297TP128F300SBCKXUMA1 - 300MHz TriCore AURIX 8MB MCU | Infineon
The Infineon TC297TP128F300SBCKXUMA1 is a 32-bit TriCore automotive microcontroller from the AURIX TC29xT family, integrating three independent TriCore CPUs running at up to 300 MHz, 8 MB of embedded Flash and 728 KB of SRAM (including cache), in a PG-LFBGA-292-6 package. It is qualified to ISO 26262 ASIL-D functional-safety standards and AEC-Q100 for automotive use, with an operating voltage range of 3.3 V to 5 V and a junction temperature range of -40 °C to +125 °C. The device integrates the Generic Timer Module (GTM), six CAN nodes, and an Ethernet MAC, targeting powertrain, chassis, and ADAS domain controllers.
Background Knowledge: AURIX (Automotive Realtime Integrated NeXt-generation architecture) is Infineon's second-generation TriCore microcontroller family designed for safety-critical automotive applications. TriCore combines the real-time capability of a microcontroller, the computational power of a DSP, and the interrupt responsiveness of a RISC CPU in a single core ISA. Within the AURIX taxonomy, TC29xT sits in the upper-performance tier: multicore (up to 3 TriCore CPUs), large Flash (8 MB), and abundant peripherals, supporting ISO 26262 ASIL-D system designs without external lockstep companion chips.
Key features include three independent 300 MHz TriCore v1.6 CPUs, 8 MB program Flash with ECC, 728 KB SRAM, hardware security module (HSM) and EVITA-Full support, GTM for motor and timer orchestration, six CAN FD nodes, and 1 Gbit Ethernet. The 292-ball LFBGA package exposes the full peripheral set, including multiple SENT, PSI5, SPI, and LIN interfaces. Hardware over/under-voltage monitors and a built-in self-test (BIST) engine support ISO 26262 decomposition to ASIL-D at the system level.
Architecturally, the TC297T uses lockstep and delayed-lockstep CPU pairs (depending on configuration) and dedicated checker cores to detect soft errors; the GTM provides parallel PWM and capture channels independent of CPU load, which is critical for deterministic motor control and fuel-injection timing. Memory is protected by ECC on Flash and parity/ECC on SRAM, and a Hardware Security Module isolates cryptographic keys for secure boot and OTA updates.
Typical applications include automotive zone and domain controllers, electric-vehicle inverter and battery management controllers, ADAS sensor fusion pre-processors, chassis ECUs (braking, steering, suspension), and industrial safety controllers requiring IEC 61508 SIL-3. The combination of three cores and rich peripherals makes it well suited to chassis-domain ECUs where sensor acquisition, motor control, and vehicle-network gateway tasks run concurrently.
When designing with this part, allocate generous PCB copper for the 292-ball LFBGA (a 4-layer minimum stack-up is recommended), keep analog 3.3 V supplies quiet (the EVRA regulator pin is noise-sensitive), and follow Infineon AURIX Application Note AP32267 for oscillator and PLL layout. The HSM must be provisioned before secure boot is enabled, so plan factory key injection in your manufacturing flow.
This page synthesizes distributor pricing (DigiKey, Mouser, Octopart), same-brand TC29xT and TC3xx alternatives found in the Infineon cross-reference data, and design considerations not assembled in the bare manufacturer datasheet.
USD $25,40
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