MAX3440E–MAX3444E
±15kV ESD-Protected, ±60V Fault-Protected,
10Mbps, Fail-Safe RS-485/J1708 Transceivers
______________________________________________________________________________________ 17
R1
4.7kΩ
R3
47Ω
C1
2.2nF
C2
2.2nF
R2
4.7kΩ
RO
Rx
Tx
R4
47Ω
J1708 BUS
B
A
TXD
D
R
DE
RE
MAX3444E
V
CC
Figure 15. J1708 Application Circuit
TOP VIEW
1
2
3
4
8
5
V
CC
GND
DI
DE
RE
RO
R
D
Rt
Rt
7
6
D
R
DE
RE
DI
RO
A
B
1
2
3
4
8
7
6
5
V
CC
B
A
GND
DI
DE
RE
RO
DIP/SO DIP/SO
R
D
B
A
MAX3442E
MAX3443E
+
+
Pin Configurations and Typical Operating Circuits (continued)
1
2
3
4
8
5
V
CC
GND
TXD
DE
RE
RO
R
D
Rt
Rt
7
6
D
R
DE
RE
TXD
RO
A
B
1
2
3
4
8
7
6
5
V
CC
B
A
GND
TXD
DE
RE
RO
DIP/SO DIP/SO
R
D
B
A
MAX3444E
+
+
Ordering Information (continued)
PART TEMP RANGE PIN-PACKAGE
MAX3441EESA+ -40°C to +85°C 8 SO
MAX3441EEPA+ -40°C to +85°C 8 PDIP
MAX3441EASA+ -40°C to +125°C 8 SO
MAX3441EAPA+ -40°C to +125°C 8 PDIP
MAX3442EESA+ -40°C to +85°C 8 SO
MAX3442EEPA+ -40°C to +85°C 8 PDIP
MAX3442EASA+ -40°C to +125°C 8 SO
MAX3442EAPA+ -40°C to +125°C 8 PDIP
MAX3443ECSA+ 0°C to +70°C 8 SO
MAX3443ECPA+ 0°C to +70°C 8 PDIP
MAX3443EESA+ -40°C to +85°C 8 SO
MAX3443EEPA+ -40°C to +85°C 8 PDIP
MAX3443EASA+ -40°C to +125°C 8 SO
MAX3443EAPA+ -40°C to +125°C 8 PDIP
MAX3444EESA+ -40°C to +85°C 8 SO
MAX3444EEPA+ -40°C to +85°C 8 PDIP
MAX3444EASA+ -40°C to +125°C 8 SO
MAX3444EAPA+ -40°C to +125°C 8 PDIP
+
Denotes a lead(Pb)-free/RoHS-compliant package.
