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LTC4308IDD-PBF Datasheet(PDF) 4 Page - Linear Technology |
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LTC4308IDD-PBF Datasheet(HTML) 4 Page - Linear Technology |
4 / 16 page LTC4308 4 4308f ENABLE, CONNECT, READY Timing Rising and Falling Propagation Delays and Rise and Fall Times for SDAIN, SDAOUT and SCLIN, SCLOUT Figure 1. Timing Diagrams tPLH_EN ENABLE CONNECT READY tPLH_READY tPHL_READY tPHL_EN 4308 TD01 tPLH SDAIN/SCLIN SDAOUT/SCLOUT tPHL tRISE tFALL tRISE tFALL 4308 TD02 TIMING DIAGRAMS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Bus Stuck Low Timeout tTIMEOUT Bus Stuck Low Timer SDAOUT = SCLOUT = 0V l 25 30 35 ms Timing Characteristics fI2C,MAX I2C Maximum Operating Frequency (Note 3) 400 600 kHz tBUF Bus Free Time Between Stop and Start Condition (Note 3) 1.3 μs tHD,STA Hold Time After (Repeated) Start Condition (Note 3) 100 ns tSU,STA Repeated Start Condition Set-Up Time (Note 3) 0 ns tSU,STO Stop Condition Set-Up Time (Note 3) 0 ns tHD,DATI Data Hold Time Input (Note 3) 0 ns tSU,DAT Data Set-Up Time (Note 3) 100 ns ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: See “Propagation Delays” in the Operations section for a discussion of tPHL and tPLH as a function of pull-up resistance and bus capacitance. Note 3: Determined by design, not tested in production. Note 4: Measure points are 0.3 • VCC and 0.7 • VCC. Note 5: IPULLUPAC varies with temperature and VCC voltage as shown in the Typical Performance Characteristics section. Note 6: ICC test performed with connection circuitry active. Note 7: All currents into pins are positive; all voltages are referenced to GND unless otherwise specified. The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted. |
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