MAX491ESD Maxim Integrated Products, MAX491ESD Datasheet - Page 14

• Manufacturer Part Number: MAX491ESD
• Description: RS-422/RS-485 Interface IC
• Manufacturer: Maxim Integrated Products

Specifications of MAX491ESD

• Case: SOP
• Lead Free Status / Rohs Status: No

Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
Figure 22. MAX488–MAX491 Full-Duplex RS-485 Network
Figure 23. Line Repeater for MAX488–MAX491
14
______________________________________________________________________________________
RO
RE
DE
DI
NOTE: RE AND DE ON MAX489/MAX491 ONLY.
NOTE: RE AND DE ON MAX489/MAX491 ONLY.
RO
DE
RE
DI
D
R
D
R
A
B
Z
Y
120Ω
120Ω
A
B
Z
Y
120Ω
120Ω
Y
MAX488–MAX491
DI
D
Z
DE
B
RE
DATA IN
DATA OUT
R
RO
A
For isolated RS-485 applications, see the MAX253 and
MAX1480 data sheets.
Y
DI
D
Z
DE
B
RE
R
RO
A
120Ω
120Ω
Y
Z
B
A
MAX488–MAX491
Isolated RS-485
R
D
DI
DE
RE
RO