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LTC1321 数据表(PDF) 9 Page - Linear Technology

部件名 LTC1321
功能描述  Features Receiver Three-State Outputs Low Supply Current: 1mA Typical
PDF  20 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1321 数据表(HTML) 9 Page - Linear Technology

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LTC1321/LTC1322/LTC1335
FU CTIO TABLES
LTC1321 Interface Configuration Without Loopback
1321BD01
RA1
VCC
VDD
A1
DY1
ON
* SEL1/SEL2 = VCC
Y1
PORT 1 = EIA562 MODE
PORT 2 = EIA562 MODE
DY2
Y2
SEL1
SEL2
24
22
1
3
5
6
7
8
20
19
LB
18
17
GND
VEE
12
13
RA2
A2
10
15
PORT 1 = RS485 MODE
PORT 2 = RS485 MODE
VDD
B1
A1
Z1
Y1
1
2
3
4
5
6
7
8
9
12
10
11
DY1
6
RA1
VCC
VDD
B1
A1
DE1
ON
Z1
Y1
PORT 1 = RS485 MODE
PORT 2 = EIA562 MODE
DY2
Y2
*SEL1
SEL2
24
22
1
2
3
5
4
7
8
21
20
LB
18
19
17
GND
VEE
12
13
RA2
A2
10
15
DY1
RA1
VCC
DE1
ON
DY2
DE2
24
22
21
20
LB
17
19
18
16
VEE
13
RA2
15
RA1
VCC
VDD
A1
DY1
ON
DE2
Y1
PORT 1 = EIA562 MODE
PORT 2 = RS485 MODE
DY2
SEL1
24
22
1
3
5
6
7
8
9
20
19
LB
18
17
1
16
12
13
10
11
15
Y2
Z2
GND
VEE
RA2
B2
A2
Y2
Z2
A2
GND
B2
*SEL2
*SEL2
*SEL1
RS485 Receiver Mode
OUTPUT
ON/OFF
SEL
OE
A – B
R
1
1
0
< – 0.2V
0
1
1
0
> 0.2V
1
1
1
0
Inputs Open
1
11
1
X
Z
01
X
X
Z
RS485 Driver Mode
INPUTS
LINE
OUTPUTS
ON/OFF
SEL
DE
D
CONDITION
Y
Z
1
1
1
0
No Fault
0
1
1
1
1
1
No Fault
1
0
1
1
1
X
Fault
Z
Z
11
0
X
X
Z
Z
01
X
X
X
Z
Z
INPUTS
LTC1335
BLOCK DIAGRA SM
EIA562 Driver Mode
INPUTS
LINE
OUTPUT
ON/OFF
SEL
D
CONDITION
Y, Z
1
0
0
No Fault
1
1
0
1
No Fault
0
1
0
X
Fault
Z
00
X
X
Z
INPUTS
EIA562 Receiver Mode
OUTPUT
ON/OFF
SEL
OE
A OR B
R
10
0
0
1
10
0
1
0
1
0
0
Input Open
1
10
1
X
Z
00
X
X
Z



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