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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9678P датащи(PDF) 194 Page - STMicroelectronics |
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L9678P датащи(HTML) 194 Page - STMicroelectronics |
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194 / 203 page  Electrical characteristics L9678P, L9678P-S 194/203 DocID029274 Rev 3 Table 60. ISO9141 interface transceiver AC specifications N° Symbol Parameter Condition Min Typ Max Unit 1TFLT_TSD Thermal shutdown filter time -- - 10 µs 2TBLK_ISOK Current limit fault blanking time -8 - 12 µs 3TRISE_ISORX ISORX rise time 80pF load, 20%-80% - - 0.5 µs 4TFALL_ISORX ISORX fall time 80pF load, 20%-80% - - 0.5 µs 5 - Baud rate Design Info - 62.5 - kBd 6TPD_ILTX Propagation delay transmitter ISOTX High to Low to ISOK = 70% * VO_REC_ISOK RISOK=510Ω, CISOK=470pF -- 1 µs 7TPD_IHTX ISOTX Low to High to ISOK = 30% * VO_DOM_ISOK RISOK=510Ω, CISOK=470pF -- 1.5 µs 8TPD_ILRX Propagation delay receiver ISOK = VTH_DOM_ISOK to ISORX High to Low RISOK=510Ω, CISOK=470pF -- 1.5 µs 9TPD_IHRX ISOK = VTH_REC_ISOK to ISORX Low to High RISOK=510Ω, CISOK=470pF -- 1.5 µs 10 TRISE_ISOK ISOK rise time 30% to 70% RISOK=510Ω, CISOK=470pF -- 1.5 µs 11 TFALL_ISOK ISOK fall time 70% to 30% RISOK=510Ω, CISOK=470pF -- 1.5 µs 12 TPDW_RX Receiver pulse width symmetry TPD_ILRX - TPD_IHRX -- 1 µs 13 TPDW_TX Transmitter pulse width symmetry (TPD_ILTX + TFALL_ISOK) – (TPD_IHTX + TRISE_ISOK) -- 1 µs |
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