English
Language : 

DS96177 Datasheet, PDF (4/8 Pages) National Semiconductor (TI) – RS-485/RS-422 Differential Bus Repeater
Receiver Switching Characteristics (Continued)
Note 8: Hysteresis is the difference between the positive-going input threshold voltage, VT+, and the negative going input threshold voltage, VT−.
Note 9: Refer to EIA Standards RS-485 for exact conditions.
Note 10: Only one output at a time should be shorted.
Parameter Measurement Information
DS009644-2
FIGURE 1. Driver VOD2 and VOC
DS009644-4
FIGURE 2. Driver VOD2 with Varying
Common Mode Voltage
FIGURE 3. Receiver VOH and VOL
DS009644-3
DS009644-5
FIGURE 4. Driver Differential Output Delay and Transition Times
DS009644-6
www.national.com
DS009644-7
FIGURE 5. Drive Propagation Times
4
DS009644-8