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STV2236 数据表(PDF) 43 Page - STMicroelectronics |
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STV2236 数据表(HTML) 43 Page - STMicroelectronics |
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43 / 86 page ![]() STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS 43/86 4.11 I²C BUS CHARACTERISTICS 4.11.1 SCL 4.11.2 SDA 4.11.3 I²C Timing Figure 19. I²C Bus Timing Symbol Parameter Test Conditions Min. Typ. Max. Unit VIL Low Level Input Voltage -0.5 1.5 V VIH High Level Input Voltage 3 VCC+0.5 V ILI Input Leakage Current VIN = 0 to VCC -10 10 µA fSCL Clock Frequency 0 100 kHz tR Input Rise Time 1.5V to 3V 1.000 ns tF Input Fall Time 1.5V to 3V 300 ns CI Input Capacitance 10 pF Symbol Parameter Test Conditions Min. Typ. Max. Unit VIL Low Level input Voltage -0.5 1.5 V VIH High Level input Voltage 3 VCC+0.5 V ILI Input Leakage Current VIN = 0 to VCC -10 10 µA CI Input Capacitance 10 pF tR Input Rise Time 1.5V to 3V 1.000 ns tF Input Fall Time 1.5V to 3V 300 ns VOL Low Level Output Voltage IOL = 3mA 0.4 V tF Output Fall Time 3V to 1.5V 250 ns CL Load Capacitance 400 pF CI Input Capacitance 10 pF Symbol Parameter Test Conditions Min. Typ. Max. Unit tLOW Clock Low period 4.7 µs tHIGH Clock High period 4 µs tSU,DAT Data Set-up Time 250 ns tHD,DAT Data Hold Time 0 340 ns tSU,STO Set-up Time from Clock High to Stop 4µs tBUF Start Set-up Time following a Stop 4.7 µs tHD,STA Start Hold Time 4 µs tSU,STA Start Set-up Time following Clock Low to High Transition 4.7 µs tBUF tLOW tHIGH tHD,STA tR tF tSU,STA tHD,DAT tSU,DAT tSU,STO SDA SCL SDA |
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