XR33152_17 Datasheet, PDF (10/21 Pages) Exar Corporation – 60V Fault Tolerant 3.0V to 5.5V RS-485/RS-422 Transceivers

XR33152/XR33155/XR33156/XR33158
Pin Functions (Continued)
Pin Number
Half-duplex
XR33152
XR33155
XR33158
8
-
-
-
-
Full-duplex
XR33156
14
12
11
9
10
-
8
-
13
Pin Name
VCC
A
B
Y
Z
DINV
VL
Type Description
PWR 3.0V to 5.5V power supply input bypass to ground with 0.1μF capacitor.
I
Non inverting receiver input.
I
Inverting receiver input.
O Non-inverting driver output.
O
I
PWR
Inverting driver output.
Driver invert control (active high). When enabled, the polarity of the driver input pin is
inverted causing the driver output (Y & Z) polarities to be inverted. When disabled, the
driver bus pins (Y & Z) operate normally: Y = non-inverting and Z = inverting. The D_INV
pin has a 150kΩ pull-down resistor.
Logic interface power supply.
NOTE:
Type: I = Input, O = Output, I/O = Input/Output, PWR = Power.
REV2B
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