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SN65LBC170DB Datasheet(PDF) 5 Page - Texas Instruments |
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SN65LBC170DB Datasheet(HTML) 5 Page - Texas Instruments |
5 / 19 page SN65LBC170, SN75LBC170 TRIPLE DIFFERENTIAL TRANSCEIVERS SLLS459C − NOVEMBER 2000 − REVISED MARCH 2005 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 RECEIVER SECTION electrical characteristics over recommended operating conditions PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIT+ Positive-going differential input voltage threshold 0.2 V VIT− Negative-going differential input voltage threshold See Figure 8 −0.2 V Vhys Hysteresis voltage (VIT+ − VIT−) See Figure 8 40 mV VOH High-level output voltage VID = 200 mV, IOH = −8 mA, See Figure 8 4 4.7 VCC V VOL Low-level output voltage VID = −200 mV, IOL = −8 mA, See Figure 8 0 0.2 0.4 V II Line input current Other input = 0 V VI = 12 V 0.9 mA II Line input current Other input = 0 V VI = −7 V −0.7 mA RI Input resistance A, B 12 k Ω ICC Supply current (receiver enabled) A, B, D, and DIR open 16 mA † All typical values are at VCC = 5 V and TA = 25°C. switching characteristics over recommended operating conditions PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low-to-high level output 7 16 ns tPHL Propagation delay time, high-to-low level output See Figure 9 7 16 ns tr Receiver output rise time See Figure 9 1.3 3 ns tf Receiver output fall time 1.3 3 ns tPZH Receiver output enable time to high level See Figure 10 26 40 ns tPHZ Receiver output disable time from high level See Figure 10 40 ns tPZL Receiver output enable time to low level See Figure 11 29 40 ns tPLZ Receiver output enable time to high level See Figure 11 40 ns tsk(p) Pulse skew (| tPLH – tPHL |) 2 ns tsk(o) Output skew‡ 1.5 ns tsk(pp) Part-to-part skew§ 3 ns ‡ Output skew (tsk(o)) is the magnitude of the time delay difference between the outputs of a single device with all of the inputs connected together. § Part-to-part skew (tsk(pp)) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate with the same input signals, the same supply voltages, at the same temperature, and have identical packages and test circuits. |
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