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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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FDA903U датащи(PDF) 61 Page - STMicroelectronics |
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FDA903U датащи(HTML) 61 Page - STMicroelectronics |
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61 / 80 page  DS12498 Rev 2 61/80 FDA903U I2C bus interface 79 13.7 I2C timing This paragraph describes more in detail the I2C bus protocol used and its timings. Please refer to Table 12 and Figure 76 below. Figure 76. I2C bus interface timing Table 12. I2C bus interface timing Symbol Parameter Min Max Unit Fscl SCL (clock line) frequency - 400 kHz Tscl SCL period 2500 - ns Tsclh SCL high time 0.6 - μs Tscll SCL low time 1.3 - μs Tsstart Setup time for start condition 0.6 - μs Thstart Hold time for start condition 0.6 - μs Tsstop Setup time for stop condition 0.6 - μs Tbuf Bus free time between a stop and a start condition 1.3 - μs Tssda Setup time for data line 100 - ns Thsda Hold time for data line 0(1) 1. Device must internally provide a hold time of at least 300 ns for the SDA signal to bridge the undefined region of the falling edge of SCL. -ns Tf Fall time for SCL and SDA - 300 ns |
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