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Si8402AB-B-IS Datasheet(PDF) 6 Page - Silicon Laboratories |
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Si8402AB-B-IS Datasheet(HTML) 6 Page - Silicon Laboratories |
6 / 34 page Si840x 6 Rev. 1.6 Timing Specifications (Measured at 1.40 V Unless Otherwise Specified) Maximum I2C bus Frequency Fmax — — 1.7 MHz Propagation Delay 5 V Operation Side A to side B rising5 Side A to side B falling5 Side B to side A rising Side B to side A falling 3.3 V Operation Side A to side B rising5 Side A to side B falling5 Side B to side A rising Side B to side A falling Tphab Tplab Tphba Tplba Tphab Tplab Tphba Tplba No bus capacitance, R1 = 1400, R2 = 499, See Figure 2 R1 = 806 R2 = 499 — — — — — — — — 25 15 20 9.0 28 13 20 10 29 22 30 12 35 18 40 15 ns ns ns ns ns ns ns ns Pulse width distortion 5V Side A low to Side B low5 Side B low to Side A low 3.3 V Side A low to Side B low5 Side B low to Side A low PWDAB PWDBA PWDAB PWDBA No bus capacitance, R1 = 1400, R2 = 499, See Figure 2 R1 = 806, R2 = 499 — — — — 9.0 11 15 11 15 20 22 30 ns ns ns ns Table 3. Si8400/01/02/05 Electrical Characteristics for Bidirectional I2C Channels1 (Continued) 3.0 V < VDD < 5.5 V. TA = –40 to +125 °C. Typical specs at 25 °C unless otherwise noted. Parameter Symbol Test Condition Min Typ Max Unit Notes: 1. All voltages are relative to respective ground. 2. VIL < 0.450 V, VIH > 0.780 V. 3. Logic low output voltages are 910 mV max from –10 to 125 °C at 3.0 mA. Logic low output voltages are 955 mV max from –40 to 125 °C at 3.0 mA. Logic low output voltages are 825 mV max from –10 to 125 °C at 0.5 mA. Logic low output voltages are 875 mV max from –40 to 125 °C at 0.5 mA. See “AN375: Design Considerations for Isolating an I2C Bus or SMBus” for additional information. 4. I2C V (Side A) = I2CVOL (Side A) – I2CVT (Side A). To ensure no latch-up on a given bus, I2CV (Side A) is the minimum difference between the output logic low level of the driving device and the input logic threshold. 5. Side A measured at 0.6 V. |
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