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VL53L4CD 数据表(PDF) 14 Page - STMicroelectronics |
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VL53L4CD 数据表(HTML) 14 Page - STMicroelectronics |
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14 / 37 page  Table 6. I²C interface - timing characteristics for fast mode (400 kHz) Symbol Parameter Minimum Typical Maximum Unit FI2C Operating frequency 0 - 400 kHz tLOW Clock pulse width low 1.3 - - μs tHIGH Clock pulse width high 0.6 - - tSP Pulse width of spikes that are suppressed by the input filter - - 50 ns tBUF Bus free time between transmissions 1.3 - - μs tHD.STA Start hold time 0.26 - - tSU.STA Start setup time 0.26 - - tHD.DAT Data in hold time 0 - 0.9 tSU.DAT Data in setup time 50 - - ns tR SCL/SDA rise time - - - - 300 tF SCL/SDA fall time - - 300 tSU.STO Stop set-up time 0.6 - - μs Ci/o Input/output capacitance (SDA) - - 10 pF Cin Input capacitance (SCL) - - 4 CL Load capacitance - 125 400 Figure 15. I²C timing characteristics IL or VIH. SDA SCL tHD.STA tR tHIGH tF tSU.DAT tHD.DAT tSU.STA tSU.STO ... ... tHD.STA tLOW tBUF stop start stop start VIH VIL VIH VIL All timings are measured from either VIL or VIH. VL53L4CD I²C interface - timing characteristics DS13812 - Rev 5 page 14/37 |
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