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FDA903D Datasheet(PDF) 62 Page - STMicroelectronics |
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FDA903D Datasheet(HTML) 62 Page - STMicroelectronics |
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62 / 82 page  I2C bus interface FDA903D 62/82 DocID031502 Rev 2 14.7 I2C timing This paragraph describes more in detail the I2C bus protocol used and its timings. Please refer to Table 12 and Figure 73 below. Figure 73. 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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