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STPMC1 数据表(PDF) 12 Page - STMicroelectronics |
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STPMC1 数据表(HTML) 12 Page - STMicroelectronics |
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12 / 77 page ![]() Application STPMC1 12/77 Doc ID 15728 Rev 6 Note: The components listed above refer to a typical metering application. In any case, STPMC1 operation is not limited to the choice of these external components. Table 6. Typical external components Function Component Value Tolerance Unit Reads or writes to a calculator device via SPI and performs computation Microprocessor --- --- --- Measurement reference clock Crystal oscillator 4.194 8.192 4.915 9.830 ± 30 ppm MHz Interface R-phase voltage, current STPMSx --- --- --- Interface S-phase voltage, current STPMSx --- --- --- Interface T-phase voltage, current STPMSx --- --- --- Interface PTAT, neutral current STPMSx --- --- --- Interface PTAT or hall STPMSx --- --- --- Low-end user interface Stepper counter |
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