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PT7C4563LE Datasheet(PDF) 5 Page - Pericom Semiconductor Corporation |
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PT7C4563LE Datasheet(HTML) 5 Page - Pericom Semiconductor Corporation |
5 / 18 page ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 2013-06-0002 PT0333-4 06/18/13 5 PT7C4563 Real-time Clock Module (I2C Bus) Over the operating range Symbol Item Min. Typ. Max. Unit fSCL SCL clock frequency - - 400 kHz tSU;STA START condition set-up time 0.6 - - s tHD;STA START condition hold time 0.6 - - s tSU;DAT Data set-up time (RTC read/write) 200 - - ns tHD;DAT1 Data hold time (RTC write) 35 - - ns tHD;DAT2 Data hold time (RTC read) 0 - - s tSU;STO STOP condition setup time 0.6 - - s tBUF Bus idle time between a START and STOP condition 1.3 - - s tLOW When SCL = "L" 1.3 - - s tHIGH When SCL = "H" 0.6 - - s tr Rise time for SCL and SDA - - 0.3 s tf Fall time for SCL and SDA - - 0.3 s tSP* Allowable spike time on bus - - 50 ns CB Capacitance load for each bus line - - 400 pF * Note: Only reference for design. S Sr P t HD;STA t SP t SU;DAT t HD;STA t HD;DAT t SU;STA t SU;STO SCL SDA t BUF t HD;STA t SU;STA f SCL t LOW t HIGH Sr S P Start condition Restart condition Stop condition |
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