Infineon Technologies TC264DA40F200NBCKXUMA1

Overview

TC264DA40F200NBCKXUMA1 from Infineon Technologies is a 32-bit dual-core AURIX™ microcontroller featuring one high-performance TriCore™ TC1.6P CPU (up to 200 MHz) and one power-efficient TC1.6E CPU, 2.5 MB ECC-protected PFlash, 96 KB DFlash for EEPROM emulation, and integrated Safety Management Unit (SMU) for ASIL-D compliance. It targets automotive safety-critical applications including electric powertrain control and brake-by-wire systems.

For engineers reviewing the TC264DA40F200NBCKXUMA1 datasheet, TC264DA40F200NBCKXUMA1 pinout, TC264DA40F200NBCKXUMA1 application, or TC264DA40F200NBCKXUMA1 equivalent, key selection criteria include dual-lockstep core architecture, 48-channel safe DMA, ERAY and Ethernet interfaces, and full AUTOSAR 4.x and ISO 26262 ASIL-D support.

Technical Context

The TC264DA40F200NBCKXUMA1 implements a heterogeneous dual-core TriCore architecture with hardware lockstep between the TC1.6P primary core and its shadow core, enabling real-time fault detection per ISO 26262. Its SRI crossbar interconnect supports concurrent 64-bit data transfers among CPUs, memories, and peripherals.

It integrates dedicated safety peripherals including SMU, memory built-in self-test (MBIST), and end-to-end data path protection across Flash, SRAM, and DMA. The device supports both external and single-supply power modes with configurable EVR regulation and includes ERAY, Ethernet (MII/RMII), and QSPI interfaces for automotive networked control.

Key Specifications

Pinout & Package

LQFP-144 package with 0.5 mm pitch, 20 × 20 mm body, and exposed thermal pad (EPAD) for enhanced thermal dissipation in automotive under-hood environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TC264DA40F200NBCKXUMA1, the TC265 variant offers more I/O and memory in a larger package for scalable domain control, while the TC275 adds HSM and larger memory for secure connected applications-neither provides identical pin compatibility or identical safety partitioning granularity.

Availability

TC264DA40F200NBCKXUMA1 is available at Aetrix Electronics and suitable for electric powertrain control, brake-by-wire systems, steer-by-wire ECUs, and vehicle domain controllers requiring stable component supply across automotive production lifecycles.

Supply support for TC264DA40F200NBCKXUMA1 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 semiconductors, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.

The AURIX™ TC26x product line was designed specifically for ASIL-D automotive safety applications-including powertrain, chassis, and advanced driver assistance-delivering deterministic real-time performance with integrated functional safety mechanisms.

FAQ

What is the maximum operating frequency of each CPU core in the TC264DA40F200NBCKXUMA1?

The TC264DA40F200NBCKXUMA1 features two TriCore CPUs: the TC1.6P core operates at up to 200 MHz across the full −40 °C to +125 °C temperature range, and the TC1.6E core also runs at up to 200 MHz with binary compatibility but optimized for lower dynamic power consumption. Both cores maintain timing closure and functional correctness at this frequency under worst-case voltage and temperature conditions as validated per AEC-Q100 Grade 1.

Does the TC264DA40F200NBCKXUMA1 support secure boot, and how is it implemented?

Yes, the TC264DA40F200NBCKXUMA1 implements secure boot via its immutable BootROM (BROM), which performs hash-based integrity verification of the user application image stored in PFlash before execution. It supports configurable boot sources (internal Flash, QSPI, or CAN), optional AES-128 decryption of encrypted images, and hardware-assisted public-key signature verification using embedded RSA/ECC accelerators-enabling compliance with UNECE R155 and ISO/SAE 21434 requirements.

How does the Safety Management Unit (SMU) monitor system health in this MCU?

The SMU continuously monitors clock frequencies, reset sources, voltage domains (VDDP, VDDIO), memory integrity (via ECC error logs), and peripheral health (e.g., watchdog timeouts, DMA errors). It aggregates events into configurable safety states and can trigger a safe state transition-such as initiating a controlled shutdown or asserting SAFE_RST-within ≤10 µs. All SMU registers are accessible only in privileged mode and protected by write-enable locks to prevent accidental reconfiguration.

Can the TC264DA40F200NBCKXUMA1 interface directly with external QSPI flash for XIP execution?

Yes, the TC264DA40F200NBCKXUMA1 supports eXecute-In-Place (XIP) from external QSPI flash via its QSPI0 interface. It supports single/dual/quad I/O modes, up to 80 MHz SCLK, and configurable latency cycles for optimal timing margin. The QSPI controller includes prefetch buffers and cache coherency logic with the instruction cache, enabling deterministic real-time code fetch without CPU stalling-validated for use with Micron MT25QL and Cypress Semper flash devices.