HWD1487 Просмотр технического описания (PDF) - Unspecified
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HWD1487 Datasheet PDF : 20 Pages
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Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
A
RO
R
120Ω
RE
B
DE
DI
D
Z
120Ω
Y
Y
ZB
A
R
D
DI DE RE RO
NOTE: RE AND DE ON HWD489/HWD491 ONLY.
Figure 22. HWD488–HWD491 Full-Duplex RS-485 Network
RO
R
RE
DE
DI
D
HWD488–HWD491
A
120Ω
B
DATA IN
Z
120Ω
Y
DATA OUT
Y
120Ω
D
DI
Z
DE
B
120Ω
R
RE
RO
Y
ZB
A
A
R
D
DI
DE RE RO
HWD489
HWD491
Isolated RS-485
For isolated RS-485 applications, see the HWD253 and
HWD1480 data sheets.
NOTE: RE AND DE ON HWD489/HWD491 ONLY.
Figure 23. Line Repeater for HWD488–HWD491
14
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