FIGURE 2. PIN OUT ASSIGNMENT
NC
VCC
2
1
3
4
5
6
78
9
10
11
12
13
14
DI
NC
RO
RE
DE
GND
Y
Z
B
A
2
1
3
45
6
7
8
VCC
RO
DI
GND
A
B
Z
Y
2
1
3
45
6
7
8
8-Pin NSOIC
Half Duplex
XR3172E
XR3175E
XR3178E
RO
RE
DE
DI
GND
A
B
VCC
8-Pin NSOIC
Full Duplex
XR3171E
XR3174E
XR3177E
14-Pin NSOIC
Full Duplex
XR3170E
XR3173E
XR3176E
ORDERING INFORMATION
PART NUMBER
PACKAGE
OPERATING TEMPERATURE
RANGE
DEVICE STATUS
XR3170EID
14-pin Narrow SOIC
-40°C to +85°C
Active
XR3171EID
8-pin Narrow SOIC
-40°C to +85°C
Active
XR3172EID
8-pin Narrow SOIC
-40°C to +85°C
Active
XR3173EID
14-pin Narrow SOIC
-40°C to +85°C
Active
XR3174EID
8-pin Narrow SOIC
-40°C to +85°C
Active
XR3175EID
8-pin Narrow SOIC
-40°C to +85°C
Active
XR3176EID
14-pin Narrow SOIC
-40°C to +85°C
Active
XR3177EID
8-pin Narrow SOIC
-40°C to +85°C
Active
XR3178EID
8-pin Narrow SOIC
-40°C to +85°C
Active
XR3170E-3178E
2
3.3V HIGH SPEED RS-485/RS-422 TRANSCEIVERS WITH 1/8th UNIT LOAD
REV. 1.0.0
Note: Please visit www.exar.com for tape and reel option part numbers.