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MAX14830 Datasheet(PDF) 11 Page - Maxim Integrated Products |
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MAX14830 Datasheet(HTML) 11 Page - Maxim Integrated Products |
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11 / 68 page ![]() 11 Maxim Integrated Quad Serial UART with 128-Word FIFOs MAX14830 AC ELECTRICAL CHARACTERISTICS (continued) (VA = +2.35V to +3.6V, VL = +1.71V to +3.6V, VEXT = +1.71V to +3.6V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VA = +2.8V, VL = +1.8V, VEXT = +2.5V, TA = +25NC.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS I2C BUS: TIMING CHARACTERISTICS (SEE FIGURE 1) SCL Clock Frequency fSCL Standard mode 100 kHz Fast mode 400 Fast mode plus 1000 Bus Free Time Between a STOP and START Condition tBUF Standard mode 4.7 F s Fast mode 1.3 Fast mode plus 0.5 Hold Time for START Condition and Repeated START Condition tHD:STA Standard mode 4.0 F s Fast mode 0.6 Fast mode plus 0.26 Low Period of the SCL Clock tLOW Standard mode 4.7 F s Fast mode 1.3 Fast mode plus 0.5 High Period of the SCL Clock tHIGH Standard mode 4.0 F s Fast mode 0.6 Fast mode plus 0.26 Data Hold Time tHD:DAT Standard mode 0 0.9 F s Fast mode 0 0.9 Fast mode plus 0 Data Setup Time tSU:DAT Standard mode 250 ns Fast mode 100 Fast mode plus 50 Setup Time for Repeated START Condition tSU:STA Standard mode 4.7 F s Fast mode 0.6 Fast mode plus 0.26 Rise Time of SDA and SCL Signals Receiving tR Standard mode (0.3 x VL to 0.7 x VL) (Note 6) 20 + 0.1Cb 1000 ns Fast mode (0.3 x VL to 0.7 x VL) (Note 6) 20 + 0.1Cb 300 Fast mode plus 120 Fall Time of SDA and SCL Signals tF Standard mode (0.7 x VL to 0.3 x VL) (Note 6) 20 + 0.1Cb 300 ns Fast mode (0.7 x VL to 0.3 x VL) (Note 6) 20 + 0.1Cb 300 Fast mode plus 120 Setup Time for STOP Condition tSU:STO Standard mode 4.7 F s Fast mode 0.6 Fast mode plus 0.26 Capacitive Load for SDA and SCL (Note 4) Cb Standard mode 400 pF Fast mode 400 Fast mode plus 550 |
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