MAX1482_06 Datasheet, PDF (7/14 Pages) Maxim Integrated Products – 20®, 1⁄8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers

20µA, ¹â„₈-Unit-Load, Slew-Rate-Limited
RS-485 Transceivers
_______________________________________________________Switching Waveforms
3V
DI
1.5V
0V
Z
Y
V_DIFF
V_O
0V
-V_O
V_O
1/2 V_O
10%
t_R
1.5V
t_PLH
t_PHL
1/2 V_O
V_DIFF = V (Y) - V (Z)
90%
90%
10%
t_F
t_{SKEW =} | t_PLH - t_PHL |
Figure 5. Driver Propagation Delays
3V
DE
1.5V
0V
Y, Z
V_OL
Y, Z
0V
1.5V
t_ZL(SHDN), t_ZL
t_LZ
2.3V _{OUTPUT NORMALLY LOW}
OUTPUT NORMALLY HIGH
2.3V
t_ZH(SHDN), t_ZH
t_HZ
V_OL + 0.5V
V_OH - 0.5V
Figure 6. Driver Enable and Disable Times
V_OH
RO
V_OL
A-B ^VID
-V_ID
0V
1.5V
OUTPUT
1.5V
t_PHL
t_PLH
INPUT
0V
Figure 7. Receiver Propagation Delays
3V
RE
1.5V
0V
V_CC
RO
RO
0V
1.5V
t_ZL(SHDN), t_ZL
t_LZ
1.5V _{OUTPUT NORMALLY LOW}
OUTPUT NORMALLY HIGH
1.5V
t_ZH(SHDN), t_ZH
t_HZ
V_OL + 0.5V
V_OH - 0.5V
Figure 8. Receiver Enable and Disable Times
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