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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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CR14 데이터시트(PDF) 39 Page - STMicroelectronics |
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CR14 데이터시트(HTML) 39 Page - STMicroelectronics |
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39 / 46 page  CR14 9 DC and AC parameters 39/46 Table 12. I²C AC Characteristics Symbol Alt. Parameter Fast I²C 400 kHz I²C 100 kHz Unit Min Max Min Max tCH1CH2 (1) 1. Sampled only, not 100% tested. tR Clock Rise Time 300 1000 ns tCL1CL2 (1) tF Clock Fall Time 300 300 ns tDH1DH2 (1) tR SDA Rise Time 20 300 20 1000 ns tDL1DL2 (1) tF SDA Fall Time 20 300 20 300 ns tCHDX (2) 2. For a reSTART condition, or following a write cycle. tSU:STA Clock High to Input Transition 600 4700 ns tCHCL tHIGH Clock Pulse Width High 600 4000 ns tDLCL tHD:STA Input Low to Clock Low (START) 600 4000 ns tCLDX tHD:DAT Clock Low to Input Transition 0 0 µs tCLCH tLOW Clock Pulse Width Low 1.3 4.7 µs tDXCX tSU:DAT Input Transition to Clock Transition 100 250 ns tCHDH tSU:STO Clock High to Input High (STOP) 600 4000 ns tDHDL tBUF Input High to Input Low (Bus Free) 1.3 4.7 µs tCLQV tAA Clock Low to Data Out Valid 1000 3500 ns tCLQX tDH Data Out Hold Time After Clock Low 200 200 ns fC fSCL Clock Frequency 400 100 kHz |
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