3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491
TOP VIEW
RO
1
R
8
7
6
V
CC
B
A
GND
RO
1
R
RE
2
DE
3
DI
4
D
RE
2
DE
3
DI
4
D
5
8
V
CC
7
B
Rt
6
A
5
GND
MAX3483
MAX3485
MAX3486
B
Rt
A
R
DE
D
DI
RO
RE
DIP/SO
NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM DIAGRAMS REFER TO PINS A AND B WHEN DE IS HIGH.
Figure 1. MAX3483/MAX3485/MAX3486 Pin Configuration and Typical Operating Circuit
TOP VIEW
V
CC
1
5 Y
V
CC
MAX3488
MAX3490
Rt
6 Z
V
CC
1
RO
2
DI
3
GND
4
R
8
7
6
A
B
Z
Y
DI
3
D
R
RO
8 A
RO
2
D
5
R
Rt
7
B
D
DI
DIP/SO
4
GND
GND
Figure 2. MAX3488/MAX3490 Pin Configuration and Typical Operating Circuit
TOP VIEW
DE
4
1
2
3
4
5
6
7
D
R
14
V
CC
13
V
CC
12
A
11
B
10
Z
9
Y
8
N.C.
N.C.
1, 8
3
RO
2
DI
5
V
CC
13, 14
9
Y
V
CC
RE
MAX3491
N.C.
RO
RE
DE
DI
GND
GND
D
Rt
10
Z
12
A
Rt
11
B
R
RO
R
D
DI
DIP/SO
6, 7
RE GND
GND
DE
Figure 3. MAX3491 Pin Configuration and Typical Operating Circuit
_______________________________________________________________________________________
7
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
