LTC1321 LINER [Linear Technology], LTC1321 Datasheet - Page 8

• Manufacturer Part Number: LTC1321
• Description: RS232/EIA562/RS485 Transceivers
• Manufacturer: LINER [Linear Technology]

FU CTIO TABLES
LTC1321/LTC1322/LTC1335
LTC1321
RS485 Driver Mode
RS485 Receiver Mode
RS232/EIA562 Driver Mode
RS232/EIA562 Receiver Mode
8
ON/OFF
ON/OFF
ON/OFF
ON/OFF
1
1
1
1
0
1
1
1
0
1
1
1
0
1
1
1
0
U
SEL
1
1
1
1
1
INPUTS
INPUTS
SEL
U
0
0
0
0
INPUTS
INPUTS
SEL
SEL
DE
1
1
1
0
X
1
1
1
1
0
0
0
0
D
X
X
0
1
D
0
1
X
X
X
Inputs Open
Inputs Open
CONDITION
CONDITION
< – 0.2V
> 0.2V
No Fault
No Fault
A – B
No Fault
No Fault
LINE
Fault
LINE
Fault
X
A
0
1
X
X
X
X
OUTPUT
Y
0
1
Z
Z
Z
OUTPUT
OUTPUT
OUTPUTS
R
Z
Y
Z
R
0
1
1
1
0
Z
1
0
1
Z
Z
1
0
Z
Z
Z
RS485 Driver Mode
RS485 Receiver Mode
RS232/EIA562 Receiver Mode
LTC1322
RS232/EIA562 Driver Mode
ON/OFF
ON/OFF
ON/OFF
ON/OFF
1
1
1
0
1
1
1
1
0
1
1
1
0
1
1
1
0
SEL
1
1
1
1
1
INPUTS
INPUTS
SEL
0
0
0
0
INPUTS
INPUTS
SEL
SEL
DE
1
1
1
0
X
0
0
0
0
1
1
1
1
D
0
1
X
X
D
0
1
X
X
X
Inputs Open
Input Open
CONDITION
CONDITION
< – 0.2V
A OR B
> 0.2V
No Fault
No Fault
A – B
No Fault
No Fault
LINE
Fault
LINE
Fault
X
0
1
X
X
X
X
OUTPUT
Y
OUTPUT
OUTPUT
0
1
Z
Z
Z
OUTPUTS
Y, Z
R
R
0
1
1
Z
1
0
Z
Z
1
0
1
Z
Z
1
0
Z
Z
Z