RS-485 Transceivers

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7

Figure 5. Driver Propagation Delays

Figure 8. Receiver Enable and Disable Times

Figure 7. Receiver Propagation Delays

Figure 6. Driver Enable and Disable Times

DI

3V

0V

Z

Y

0V

1.5V

10%

90%

90%

1.5V

10%

1.5V

0V

1.5V

OUTPUT

INPUT

0V

RO

A-B

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

3V

0V

RO

RO

0V

1.5V

1.5V

1.5V

1.5V

RE

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

3V

0V

Y, Z

Y, Z

0V

1.5V

1.5V

2.3V

2.3V

DE

_______________________________________________________Switching Waveforms