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MPR081 датащи(PDF) 3 Page - Freescale Semiconductor, Inc |
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MPR081 датащи(HTML) 3 Page - Freescale Semiconductor, Inc |
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3 / 22 page ![]() MPR081 Sensors Freescale Semiconductor 3 Table 5. I2C AC Characteristics (Typical Operating Circuit, V+ = 1.8 V to 3.6 V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3 V, TA = +25°C.) Characteristic Symbol Min Typ Max Units Serial Clock Frequency fSCL —— 400 kHz Bus Timeout FTIMEOUT — 31.25 — ms Bus Free Time Between a STOP and a START Condition tBUF 1.3 — — µs Hold Time, (Repeated) START Condition tHD, STA 0.6 — — µs Repeated START Condition Setup Time tSU, STA 0.6 — — µs STOP Condition Setup Time tSU, STO 0.6 — — µs Data Hold Time tHD, DAT —— 0.9 µs Data Setup Time tSU, DAT 100 — — ns SCL Clock Low Period tLOW 1.3 — — µs SCL Clock High Period tHIGH 0.7 — — µs Rise Time of Both SDA and SCL Signals, Receiving tR — 20+0.1Cb 300 ns Fall Time of Both SDA and SCL Signals, Receiving tF — 20+0.1Cb 300 ns Fall Time of SDA Transmitting tF.TX — 20+0.1Cb 250 ns Pulse Width of Spike Suppressed tSP —50— ns Capacitive Load for Each Bus Line Cb —— 400 pF |
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