SP330EEY-0A-EB Datasheet, PDF (20/23 Pages) Exar Corporation – RS-232/RS-485/RS-422 TRANSCEIVER WITH 1.65V-5.5V INTERFACE

SP330E
RS-232/RS-485/RS-422 TRANSCEIVER WITH 1.65V-5.5V INTERFACE
REV. 1.0.0
TABLE 3: RS-485/422 TX TRUTH TABLE
INPUTS
SHDN
RS-485/RS-232
DE/T2IN
0
X
X
1
1
0
1
1
1
1
1
1
X
0
X
DI/T1IN
X
X
0
1
X
OUTPUTS
Z(B)/T1OUT
Y(A)/T2OUT
1/8th unit load
1/8th unit load
1/8th unit load
1/8th unit load
1
0
0
1
RS-232 Mode
TABLE 4: RS-485/422 RX TRUTH TABLE
RS-485/RS-232
1
SHDN
0
INPUTS
HALF/FULL
RE
X
X
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
1
0
1
1
1
0
1
1
X
1
0
X
X
X
(A-B)
X
-50mV
 -200mV
Floating
X
X
X
X
X
(Y-Z)
X
X
X
X
-50mV
 -200mV
Floating
X
X
OUTPUT
RO/R2OUT
High-Z
1
0
1
1
0
1
High-Z
RS-232 Mode
20