3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
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
MAX3483E
MAX3485E
MAX3486E
B
Rt
A
R
DE
D
DI
RO
RE
SO/DIP
NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM DIAGRAMS REFER TO PINS A AND B WHEN DE IS HIGH.
Figure 1. MAX3483E/MAX3485E/MAX3486E Pin Configuration and Typical Operating Circuit
TOP VIEW
V
CC
1
5 Y
V
CC
MAX3488E
MAX3490E
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
SO/DIP
4
GND
GND
Figure 2. MAX3488E/MAX3490E Pin Configuration and Typical Operating Circuit
TOP VIEW
DE
4
V
CC
13, 14
9
Y
Rt
10
Z
12
A
Rt
11
B
V
CC
RE
MAX3491E
N.C. 1
RO 2
RE 3
DE 4
DI 5
GND 6
GND 7
D
R
14 V
CC
13 V
CC
12 A
11 B
10 Z
9
8
Y
N.C.
N.C.
1, 8
3
RO
2
DI
5
D
R
RO
R
D
DI
SO/DIP
6, 7
RE GND
GND
DE
Figure 3. MAX3491E Pin Configuration and Typical Operating Circuit
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7
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
