XR3070-78X Datasheet, PDF (16/24 Pages) Exar Corporation – LOW POWER 18V TOLERANT RS-485/RS-422 +3.3V TRANSCEIVERS

XR3070-78X
LOW POWER 18V TOLERANT RS-485/RS-422 +3.3V TRANSCEIVERS
PIN DESCRIPTIONS
REV. 1.0.2
PIN NUMBER
HALF DUPLEX
FULL DUPLEX
XR3072X
XR3075X
XR3078X
XR3071X
XR3074X
XR3077X
XR3070X
XR3073X
XR3076X
1
2
2
2
-
3
3
-
4
4
3
5
5
4
6, 7
6
-
-
7
-
-
8
1
14
-
8
12
PIN NAME TYPE
DESCRIPTION
RO
RE
DE
DI
GND
A
B
V_CC
A
Receiver Output. When RE is low and
Out if (A-B)  -50mV, RO is high.
If (A-B)  -200mV, RO is Low.
Receiver Output Enable (Hot Swap).
In ^{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).
In ^{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
In _{output low and inverting output high. Similarly, a}
high level on DI forces non-Inverting output high
and inverting output low.
Pwr Ground.
I/O
Non-Inverting Receiver Input and
Non-Inverting Driver Output.
I/O
Inverting Receiver Input and
Inverting Driver Output.
Pwr
+3.3V Power Supply Input.
Bypass to ground with 0.1 μF capacitor.
In Non-Inverting Receiver Input.
-
7
11
B
In Inverting Reciever Input.
-
5
9
Y
Out Non-Inverting Driver Output.
-
6
10
Z
Out Inverting Driver Output.
-
-
1, 8, 13
N/C
- No Connect, not internally connected.
16