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STCOM10 데이터시트(PDF) 10 Page - STMicroelectronics |
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STCOM10 데이터시트(HTML) 10 Page - STMicroelectronics |
10 / 58 page Description STCOM 10/58 DocID028515 Rev 1 Zero crossing comparator The mains line zero crossing can be detected by providing a mains synchronous bipolar (AC) signal at the input of this comparator. The zero crossing comparator provides positive and negative event information (rising/falling edge or high/low level). 1.2.4 Line driver The STCOM is equipped with an integrated high-performance dual power line driver. It has very low distortion, allowing the device to comply with EMC requirements. When supplied at maximum voltage, the line driver is capable to provide 28 V p-p in differential configuration or 14 V p-p in single-ended configuration. The output current can reach 1 A rms in both differential and single-ended configurations, in order to drive very low power line impedance. Any overtemperature event will force the line driver to shut down, thus preventing the STCOM to get damaged. 1.3 Application core sub-system 1.3.1 ARM® Cortex™-M4F core The Cortex™-M4 processor is built on a high-performance processor core, with a 3-stage pipeline Harvard architecture, making it ideal for demanding embedded applications. The processor delivers exceptional power efficiency through an efficient instruction set and extensively optimized design, providing high end processing hardware including IEEE754- compliant single precision (32-bit) floating point computation, a range of a single cycle and SIMD multiplication and multiply with accumulate capabilities, saturating arithmetic and dedicated hardware division. To facilitate the design of cost-sensitive devices, the Cortex™-M4 processor implements tightly coupled system components that reduce processor area while significantly improving interrupt handling and system debug capabilities. The Cortex™-M4 processor implements a version of the Thumb® instruction set based on Thumb-2® technology, ensuring high code density and reduced program memory requirements. The Cortex™-M4 instruction set provides the exceptional performance expected of a modern 32-bit architecture, with the high code density of 8-bit and 16-bit microcontrollers. The Cortex™-M4 processor provides multiple interfaces using AMBA™ technology to provide high-speed, low latency memory accesses. It supports unaligned data accesses and implements atomic bit manipulation that enables faster peripheral controls, system spinlocks and thread-safe Boolean data handling. |
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