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L9678P Datasheet(PDF) 204 Page - STMicroelectronics |
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L9678P Datasheet(HTML) 204 Page - STMicroelectronics |
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204 / 215 page  Electrical characteristics L9678P, L9678P-S 204/216 DS11626 Rev 9 Table 61. ISO9141 interface transceiver AC specifications N° Symbol Parameter Condition Min. Typ. Max. Unit 1 TFLT_TSD Thermal shutdown filter time - - - 10 µs 2 TBLK_ISOK Current limit fault blanking time - 8 - 12 µs 3 TRISE_ISORX ISORX rise time 80pF load, 20%-80% - - 0.5 µs 4 TFALL_ISORX ISORX fall time 80pF load, 20%-80% - - 0.5 µs 5 - Baud rate Design Info - 62.5 - kBd 6 TPD_ILTX Propagation delay transmitter ISOTX High to Low to ISOK = 70% * VO_REC_ISOK RISOK=510Ω, CISOK=470pF - - 1 µs 7 TPD_IHTX ISOTX Low to High to ISOK = 30% * VO_DOM_ISOK RISOK=510Ω, CISOK=470pF - - 1.5 µs 8 TPD_ILRX Propagation delay receiver ISOK = VTH_DOM_ISOK to ISORX High to Low RISOK=510Ω, CISOK=470pF - - 1.5 µs 9 TPD_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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