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SNJ95176BFK Datasheet(PDF) 5 Page - Texas Instruments |
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SNJ95176BFK Datasheet(HTML) 5 Page - Texas Instruments |
5 / 15 page SN95176B DIFFERENTIAL BUS TRANSCEIVER SGLS026A − MARCH 1989 − REVISED JUNE 1995 2−5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 SYMBOL EQUIVALENTS DATA SHEET PARAMETER RS-422-A RS-485 VO Voa, Vob Voa, Vob |VOD1| Vo Vo |VOD2| Vt (RL = 100 Ω) Vt (RL = 54 Ω) |VOD3| None Vt (Test Termination |VOD3| None Vt (Test Termination Measurement 2) ∆|VOD| | |Vt| − |Vt|| | |Vt − |Vt|| VOC |Vos| |Vos| ∆|VOC| |Vos − Vos| |Vos − Vos| IOS |Isa|, |Isb| None IO |Ixa|, |Ixb| Iia, Iib RECEIVER SECTION electrical characteristics over recommended ranges of common-mode input voltage, supply voltage, and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIT + Positive-going input threshold voltage VO = 2.7 V, IO = − 0.4 mA 0.2 V VIT − Negative-going input threshold voltage VO = 0.5 V, IO = 8 mA − 0.2‡ V Vhys Input hysteresis voltage (VIT + − VIT −) 50 mV VIK Enable clamp voltage II = − 18 mA − 1.5 V VOH High-level output voltage VID = 200 mV, IOH = − 400 µA, 2.7 V VOH High-level output voltage VID = 200 mV, See Figure 2 IOH = − 400 µA, 2.7 V VOL Low-level output voltage VID = − 200 mV, IOL = 8 mA, 0.45 V VOL Low-level output voltage VID = − 200 mV, See Figure 2 IOL = 8 mA, 0.45 V IOZ High-impedance-state output current VO = 0.4 V to 2.4 V ±20 µA II Line input current Other input = 0 V, VI = 12 V 1 mA II Line input current Other input = 0 V, See Note 5 VI = − 7 V − 0.8 mA IIH High-level enable input current VIH = 2.7 V 20 µA IIL Low-level enable input current VIL = 0.4 V − 100 µA ri Input resistance VI = 12 V 12 k Ω IOS Short-circuit output current −15 −85 mA ICC Supply current (total package) No load Outputs enabled 42 70 mA ICC Supply current (total package) No load Outputs disabled 26 35 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The algebraic convention, in which the less-positive (more-negative) limit is designated minimum, is used in this data sheet for common-mode input voltage and threshold voltage levels only. NOTE 5: This applies for both power on and power off. Refer to EIA Standard RS-485 for exact conditions. |
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