TMCU Technology Overview: Advancements in Smart Cockpit Solutions

TMCU has announced its latest developments in smart cockpit technology, featuring the ARM® Cortex®-M0+ 32-bit CPU with a maximum system frequency of 80 MHz. The chip includes 128 to 224 KB of Code Flash with ECC checking, 32 KB of Data Flash usable as a simulated EEPROM, and supports 30 touch channels capable of detecting large loads of up to 4nF. It meets automotive-grade standards, complying with AEC-Q100 Grade 2, and operates in an environmental temperature range from -40 °C to 105 °C, with a junction temperature range of -40 °C to 125 °C. The packaging options available are 32-pin QFN (5 mm x 5 mm) and 48-pin LQFP (7 mm x 7 mm). Unique advantages include exceptional load capacity and precision sensing with a detection accuracy of 1fF/mm and a near-zero false positive rate, making it the first of its kind internationally and the only one domestically. The chip offers a fully domestic supply chain and is the first automotive-grade touch MCU in China to receive SGS ASIL-B functional safety certification. Its temperature drift performance is also industry-leading, ensuring stable detection over a temperature range of -40°C to 105°C. The single-chip integration design optimizes circuits, doubles quality and efficiency while reducing failure points, marking an industry first. Furthermore, it has completed EMC optimization and passed stringent electromagnetic compatibility tests, supporting dynamic BCI official certification by China’s Ministry of Industry and Information Technology. The TMCU series is applicable in smart sensors and human-machine interaction (HMI) scenarios. Smart sensors include steering wheel hand-off detection (HOD), door handle sensors, tailgate foot-activated sensors, passenger occupancy detection (POD), window pinch protection, and liquid level detection. HMI applications include front and rear air conditioning panels, rear refrigerator panels, seat control panels, steering wheel buttons, and touch reading lights, catering to various smart cockpit and intelligent driving demands. Looking ahead, the TMCU series is set to significantly advance the localization of automotive touch chips, breaking through barriers in critical niche markets previously dominated by foreign chips. In the niche market of steering wheel hand-off detection, the TMCU series surpasses existing performance standards, reducing management costs for hand-off detection controllers, and contributing to the development of intelligent assisted driving ecosystems in terms of performance, safety, quality, and cost. For touch door handle sensors, which are widely used in keyless entry vehicles, TMCU chips achieve high SNR and support Active Shielding with proprietary detection algorithms, effectively breaking the monopoly of foreign chips in this field.