XR33052_17 Datasheet, PDF (9/20 Pages) Exar Corporation – 60V Fault Tolerant 3.0V to 5.5V RS-485/RS-422 Transceivers

Pin Configuration
XR33052/XR33053/XR33055/XR33058
RO 1
RE 2
DE 3
DI 4
8 VCC
7 B/Z
6 A/Y
5 GND
N/C 1
RO 2
RE 3
DE 4
DI 5
GND 6
GND 7
14 VCC
13 N/C
12 A
11 B
10 Z
9Y
8 N/C
XR33052, XR33055 and XR33058 Half-duplex
XR33053 Full-duplex
Pin Functions
Pin Number
Half-duplex
XR33052
XR33055
XR33058
Full-duplex
XR33053
1
2
2
3
3
4
4
5
5
6, 7
8
14
12
11
9
10
6
7
1, 8, 13
Pin Name
RO
RE
DE
DI
GND
VCC
A
B
Y
Z
A/Y
B/Z
N/C
Type Description
Output
Input
Input
Input
Power
Power
Input
Input
Output
Output
I/O
I/O
-
Receiver output. When RE is low and if (A-B) ≥ 200mV, RO is high.
If (A-B) ≤ -200mV, RO is low. If inputs are left floating, shorted together or
terminated and undriven for more than 2µs, the output is high.
Receiver output enable (hot swap). When RE is low, RO is enabled.
When RE is high, RO is high impedance, RE should be high and DE should
be low to enter shutdown mode.
Driver output enable (hot swap). When DE is high, outputs are enabled.
When DE is low, outputs are high impedance, DE should be low and RE
should be high to enter shutdown mode.
Driver input. With DE high, a low level on DI forces non-inverting output low
and inverting output high. Similarly, a high level on DI forces non-inverting
output high and inverting output low.
Ground.
3.0V to 5.5V power supply input, bypass to ground with 0.1μF capacitor.
Non-inverting receiver input.
Inverting receiver input.
Non-inverting driver output.
Inverting driver output.
Non-inverting receiver input and non-inverting driver output.
Inverting receiver input and inverting driver output.
Not connected.
REV2B
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