![](http://datasheet.mmic.net.cn/190000/HWD489_datasheet_14918535/HWD489_14.png)
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
Figure 22. HWD488–HWD491 Full-Duplex RS-485 Network
120
R
D
RO
RE
DE
DI
A
B
Y
120
DI
RO
DE
RE
Z
Y
AA
A
BB
B
D
R
HWD489
HWD491
NOTE: RE AND DE ON HWD489/HWD491 ONLY.
Figure 23. Line Repeater for HWD488–HWD491
120
DATA IN
DATA OUT
R
D
RO
RE
DE
DI
A
B
Z
Y
HWD488–HWD491
NOTE: RE AND DE ON HWD489/HWD491 ONLY.
Isolated RS-485
For isolated RS-485 applications, see the HWD253 and
HWD1480 data sheets.
14