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FXOS8700CQ 데이터시트(PDF) 13 Page - Freescale Semiconductor, Inc |
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FXOS8700CQ 데이터시트(HTML) 13 Page - Freescale Semiconductor, Inc |
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13 / 86 page ![]() Sensors Freescale Semiconductor, Inc. 13 5 Digital Interfaces 5.1 I2C interface characteristics Figure 5. I2C slave timing diagram Table 8. I2C slave timing values(1) 1. All values referred to VIH (min) and VIL (max) levels. Parameter Symbol I2C Fast Mode Unit Min Max SCL Clock Frequency fSCL 0 400 kHz Bus Free Time between STOP and START condition tBUF 1.3 μs (Repeated) START Hold Time tHD;STA 0.6 μs (Repeated) START Setup Time tSU;STA 0.6 μs STOP Condition Setup Time tSU;STO 0.6 μs SDA Data Hold Time tHD;DAT 0.05 0.9(2) 2. This device does not stretch the LOW period (tLOW) of the SCL signal. μs SDA Valid Time(3) 3. tVD;DAT = time for Data signal from SCL LOW to SDA output. tVD;DAT 0.9(2) μs SDA Valid Acknowledge Time(4) 4. tVD;ACK = time for Acknowledgement signal from SCL LOW to SDA output (HIGH or LOW, depending on which one is worse). tVD;ACK 0.9(2) μs SDA Setup Time tSU;DAT 100 ns SCL Clock Low Time tLOW 1.3 μs SCL Clock High Time tHIGH 0.6 μs SDA and SCL Rise Time tr 20 + 0.1 Cb (5) 5. Cb = total capacitance of one bus line in pF. 300 ns SDA and SCL Fall Time tf 20 + 0.1 Cb (5) 300 ns Pulse width of spikes on SDA and SCL that must be suppressed by internal input filter tSP 050 ns handbook, full pagewidth MSC610 S Sr tSU;STO tSU;STA tHD;STA tHIGH tLOW tSU;DAT tHD;DAT tf SDA SCL P S tBUF tr tf tr tSP tHD;STA |
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