Infineon AURIX™ TC23xL Series High-Performance Automotive Grade Microcontroller SAK-TC234LP-32F200N AC

SAK-TC234LP-32F200N AC Product Overview

The SAK-TC234LP-32F200N AC is a high-performance 32-bit automotive-grade microcontroller from Infineon's second-generation AURIX™ family. Built on the powerful TriCore™ architecture (which fuses DSP and RISC features), this device is a standout model in the TC23xL series. It delivers up to 200MHz CPU frequency, 2MB flash memory, and 192KB RAM, housed in a 144-pin TQFP package.

The core strengths of the SAK-TC234LP-32F200N AC lie in its exceptional functional safety and real-time control capabilities. It supports single-voltage 3.3V supply and integrates a versatile Generic Timer Module (GTM), a Hardware Security Module (HSM), and diverse lock-step cores compliant with ISO 26262. As an automotive-grade product, it operates over a wide temperature range of -40°C to 125°C, making it ideal for electronic control units with stringent safety and reliability demands.

The AURIX™ series is specifically designed to meet the automotive industry's most rigorous safety standards (ASIL-D). While maintaining low power consumption, the TC234LP offers high-throughput data processing, serving as a key component bridging the traditional embedded world and future autonomous driving.

SAK-TC234LP-32F200N AC Key Features

• High-Performance TriCore™ Processing Architecture: 32-bit single-core architecture, up to 200MHz main frequency, combining the real-time capability of a microcontroller, DSP digital signal processing performance, and RISC fast interrupt response to handle complex algorithms and protocol stacks.

• Large Memory with ECC Protection: Integrated 2MB flash and 192KB RAM with 128KB EEPROM. Full memory supports Error Correction Code (ECC), significantly enhancing data integrity for mission-critical high-reliability applications.

• Functional Safety & Information Security (ASIL-D): Supports ISO 26262 up to ASIL-D safety level. Built-in HSM, clock-diverse lock-step cores, access permission system, and safety management unit simplify system functional safety development.

• Rich Automotive Communication Interfaces: Features 120 I/O pins supporting up to 6x CAN (including CAN FD), 2x LIN, 1x FlexRay, 4x DSPI/QSPI, and SENT sensor interfaces – an excellent choice for in-vehicle network gateways.

• Powerful Analog & Timing Functions: Integrates 24 channels of 12-bit SAR ADC, coupled with GTM and CCU6, suitable for complex PWM generation and precise signal acquisition in motor control.

• Wide-Voltage Supply & Low Power: Supports a wide supply voltage range from 1.17V to 5.5V, with on-chip voltage regulator and wake-up timer, offering excellent energy efficiency and reducing BOM cost.

• Automotive-Grade Reliability: Designed for harsh environments, supports -40°C to +125°C ambient temperature, available in PG-TQFP-144-27 package with MSL Level 3.

• AUTOSAR Support: Supports AUTOSAR V3.2 and V4.x, providing a complete ecosystem to facilitate software reuse and shorten development cycles.

  
  

  
  

SAK-TC234LP-32F200N AC Applications

• Body & Comfort Systems: Door control, window lift, seat adjustment, lighting control, and air conditioning systems – leveraging rich peripherals and low-power features.

• Chassis & Safety Systems: Electric power steering, airbags, electronic parking brake, and tire pressure monitoring – meeting ASIL-D safety requirements.

• Powertrain: Engine management, transmission control, fuel injection systems, and vehicle control units for new energy vehicles.

• Industrial Automation: Main control core for high-performance PLCs, servo drives, photovoltaic inverters, and industrial robots – utilizing powerful PWM and real-time performance.

• Automotive Gateway & Communication: As a domain controller or central gateway, handling routing and conversion of large data volumes thanks to multiple CAN FD and FlexRay interfaces.

  
  

  
  

SAK-TC234LP-32F200N AC Advantages & Highlights

• ISO 26262 ASIL-D Functional Safety: The chip’s most core advantage. Lock-step core technology reduces the burden of safety diagnostic software development, and hardware-level fault detection ensures safe operation even in the event of random hardware failures.

• Single 3.3V Supply Simplifies Design: Unlike complex multi-power-domain chips, the TC234LP requires only a single 3.3V supply. The built-in LDO greatly simplifies PCB power design, saving cost and space for external power ICs.

• Large Embedded Memory with ECC: 2MB Flash and 192KB RAM are high-end specs among comparable automotive MCUs, sufficient to host complex AutoSAR systems and advanced control algorithms, reducing the need for external memory.

• Powerful GTM Timer Module: Designed for complex motor control and power conversion. The GTM can handle complex PWM waveform generation and motor position capture independently of the CPU, freeing up CPU resources for algorithm processing.

• High Scalability: As part of the AURIX™ family, the TC234LP is pin- and software-compatible with the TC22x and TC23x series. Customers can choose single-core or multi-core solutions on the same platform according to project needs, maximizing development reuse.
  
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FAQ:

1. What is the Infineon SAK‑TC234LP‑32F200N AC and what are its key specifications?
   It is a member of the AURIX™ TC23xL family, featuring a single 32‑bit TriCore™ 1.6P processor with a lockstep core running at 200 MHz. The device provides 2 MB of embedded Flash, 128 KB of SRAM with ECC, and 64 KB of data Flash (EEPROM emulation). Rich automotive peripherals include multi‑channel CAN FD, LIN, SENT, a 12‑bit ADC, and advanced timer modules, all in an LQFP‑144 package rated from ‑40 °C to +125 °C (ambient).

2. What functional safety level does the TC234LP support, and how does the lockstep core contribute?
   The TC234LP is designed to meet ISO 26262 ASIL‑D requirements. The lockstep core continuously compares the outputs of two identical processor pipelines; any discrepancy immediately triggers a safety reaction. Together with ECC‑protected memories, a safety watchdog, and a fault‑collection unit, the device can detect and mitigate systematic and random hardware faults without an external supervisor IC.

3. How much Flash and SRAM does this device offer, and is it enough for complex automotive algorithms?
   It provides 2 MB of program Flash and 128 KB of system SRAM, plus 64 KB of data Flash that can be used for EEPROM emulation. This is sufficient for sophisticated chassis control, electric power steering (EPS), brake‑by‑wire, or body‑domain controller firmware, including AUTOSAR stacks. The memory footprint is balanced for cost‑sensitive applications that do not require the larger memories of the TC29x series.

4. Which communication interfaces are integrated on the TC234LP?
   The chip includes up to 6 CAN FD channels, multiple LIN 2.2/2.1 interfaces, SENT (Single Edge Nibble Transmission) channels for sensor communication, and standard serial interfaces (SPI, I²C, UART). The CAN FD modules support the flexible data‑rate protocol, enabling higher bandwidth on existing automotive CAN buses without changing the physical layer.

5. How does the TC234LP differ from other TC23x series devices like the TC233L or TC237L?
   The TC23x family shares the same 200 MHz TriCore core and lockstep architecture, but the TC234LP sits in the middle in terms of memory and peripheral count. It offers more Flash and SRAM than the entry‑level TC233L, yet fewer CAN channels and I/O than the higher‑end TC237L. The TC234LP is a sweet spot for applications that need solid safety performance and moderate I/O without the overhead of the larger, more expensive TC237L.

6. Can the TC234LP be used for motor control and powertrain applications?
   Yes. The TriCore architecture includes a DSP engine and a single‑precision FPU, which accelerate field‑oriented control (FOC) and digital filter algorithms. The generic timer module (GTM) can generate complex PWM patterns with dead‑time insertion for three‑phase inverters, and the multiple fast ADCs enable precise phase‑current sensing. This makes the TC234LP suitable for electric water pumps, oil pumps, fuel pumps, and low‑power traction inverters.

7. What development tools and software ecosystems are available for the TC234LP?
   Infineon provides the AURIX™ Development Studio (free Eclipse‑based IDE with GNU compiler) and the iLLD (low‑level drivers) for fast prototyping. Commercial tools such as Tasking, HighTec, and IAR offer production‑grade compilers and debuggers. AUTOSAR MCAL and complex device drivers (CDDs) are available from third‑party vendors. The TC234LP is also fully supported by Infineon’s AURIX™ Safety Library (SafeTlib) for functional‑safety projects.

8. What is the package and operating temperature range of the SAK‑TC234LP‑32F200N AC?
   The "AC" suffix denotes an automotive‑grade temperature range of ‑40 °C to +125 °C (ambient). The device is housed in an LQFP‑144 package (24 mm × 24 mm), which provides 144 exposed pins suitable for both hand‑soldered prototyping and automated production. The large package ensures good thermal dissipation and easy PCB routing.

9. Does the TC234LP include a Hardware Security Module (HSM) for secure boot and communication?
   Yes, the TC234LP integrates an EVITA‑light HSM that provides hardware‑accelerated AES‑128 encryption, a true random number generator, and secure key storage. It supports secure boot, encrypted firmware updates, and protected on‑board communication (SecOC), helping OEMs meet cybersecurity requirements such as ISO/SAE 21434 and UN R155.

10. What are the most typical automotive applications for the TC234LP?
    It is widely used in electric power steering (EPS), electronic braking systems (EBS), active suspension, body‑domain controllers, battery management systems (BMS), and smart actuator modules. Its combination of ASIL‑D safety, a compact LQFP‑144 package, and robust connectivity makes it a trusted choice for safety‑critical yet cost‑sensitive automotive electronics.