Datasheet

LTC2872
24
2872f
Typical applicaTions
Figure 26. RS485 Receiver with 4-Way Selectable Inputs
2872 F26
H/F
RA1
RXEN1
RS485
INTERFACE
INPUT1
INPUT2
Y1
Z1
A1
B1
LTC2872
S3
H/F
RA2
RXEN2
INPUT3
INPUT4
Y2
Z2
A2
B2
S1
OUTPUT
S2
S2
1
1
0
0
1
0
S1
0
0
1
1
1
0
SELECTED INPUT
INPUT1
INPUT2
INPUT3
INPUT4
NONE/Hi-Z
INVALID
S3
1
0
1
0
X
X
V
CC
= 3V to 5.5V, V
L
= 1.7V to V
CC
. Logic input pins not shown are tied to a valid logic
state. External components necessary for operation are not shown.