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LTC2844IG#PBF
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P20
16
L
T
C2844
sn2844 2844fs
Figure 23. Controller-Selectable Multiprotocol DTE Port with DB-25 Connector
TYPICAL APPLICA
TIO S
U
D2
D1
LTC2844
RTS
DTR
DSR
DCD
CTS
D3
R2
R1
R4
R3
LTC2846
LL
TXD
SCTE
TXC
RXC
RXD
M0
M1
M2
DCE/DTE
V
CC
V
DD
V
EE
GND
2
14
24
11
15
12
17
9
3
1
4
19
20
8
23
10
6
22
5
13
18
7
16
2844 F23
C2
1
µ
F
R1
13k
C1
1
µ
F
C6
10
µ
F
C3
1
µ
F
C4
3.3
µ
F
SCTE B
RTS A (105)
RTS B
DTR A (108)
DTR B
CTS A (106)
CTS B
LL A (141)
SG
SHIELD
DB-25 MALE
CONNECTOR
DCD A (109)
DCD B
DSR A (107)
DSR B
D4
V
CC
5V
SHDN
V
IN
3.3V
CHARGE
PUMP
BOOST
SWITCHING
REGULATOR
L1
5.6
µ
H
+
33
7
35
4
36
D1
MBR0520
3
5
6
8
9
10
11
12
13
14
15
16
18
19
1
2
3
4
5
6
7
8
10
9
V
IN
15
V
IN
3.3V
16
17
18
19
20
21
22
23
24
25
32
31
30
29
28
27
26
25
24
23
22
21
20
17
V
IN
3.3V
26
27
28
C5
10
µ
F
C9
1
µ
F
C7
1
µ
F
C8
1
µ
F
M0
M1
M2
DCE/DTE
M0
M1
M2
11
12
13
14
D1
D2
D3
R1
R2
R3
TXD A (103)
TXD B
TXC A (114)
RXC A (115)
RXD A (104)
TXC B
RXC B
RXD B
SCTE A (113)
T
T
T
T
T
C10
1
µ
F
R2
4.3k
V
CC
5V
17
L
T
C2844
sn2844 2844fs
Figure 24. Controller-Selectable Multiprotocol DTE/DCE Port with DB-25 Connector
TYPICAL APPLICA
TIO S
U
D2
D1
LTC2844
D3
R2
R1
R4
R3
LTC2846
M0
M1
M2
DCE/DTE
V
CC
V
DD
V
EE
GND
2844 F25
C2
1
µ
F
R1
13k
C1
1
µ
F
C6
10
µ
F
C3
1
µ
F
C4
3.3
µ
F
D4
V
CC
5V
SHDN
V
IN
3.3V
CHARGE
PUMP
BOOST
SWITCHING
REGULATOR
L1
5.6
µ
H
+
33
7
35
4
36
D1
MBR0520
3
5
6
8
9
10
11
12
13
14
15
16
18
19
1
2
3
4
5
6
7
8
10
9
DCE/DTE
V
IN
15
V
IN
3.3V
16
17
18
19
20
21
22
23
24
25
32
31
30
29
28
27
26
25
24
23
22
21
20
26
27
28
C5
10
µ
F
C9
1
µ
F
C7
1
µ
F
C8
1
µ
F
M0
M1
M2
DCE/DTE
M0
M1
M2
11
12
13
14
D1
D2
D3
R1
R2
R3
T
T
T
T
T
C10
1
µ
F
R2
4.3k
V
CC
5V
DTE_TXD/DCE_RXD
DTE_SCTE/DCE_RXC
DTE_TXC/DCE_TXC
DTE_RXC/DCE_SCTE
DTE_RXD/DCE_TXD
DTE_RTS/DCE_CTS
DTE_DTR/DCE_DSR
DTE_DCD/DCE_DCD
DTE_DSR/DCE_DTR
DTE_CTS/DCE_RTS
DTE_LL/DCE_LL
2
14
24
11
15
12
17
9
3
1
4
19
20
8
23
10
6
22
5
13
18
7
16
SCTE B
RTS A
RTS B
DTR A
DTR B
CTS A
CTS B
DSR A
DSR B
CTS A
CTS B
LL A
SG
SHIELD
DB-25
CONNECTOR
DCD A
DCD B
DSR A
DSR B
RTS A
RTS B
LL A
DCD A
DCD B
DTR A
DTR B
TXD A
TXD B
TXC A
RXC A
RXD A
TXC B
RXC B
RXD B
TXC A
SCTE A
TXD A
TXC B
SCTE B
TXD B
SCTE A
RXC B
RXD A
DTE
DCE
RXD B
RXC A
17
V
IN
3.3V
18
L
T
C2844
sn2844 2844fs
Figure 25. Controller-Selectable Multiprotocol DTE/DCE Port with RL, LL, TM and DB-25 Connector
TYPICAL APPLICA
TIO S
U
D2
D1
LTC2845
DTE_RTS/DCE_CTS
DTE_DTR/DCE_DSR
DTE_DSR/DCE_DTR
DTE_DCD/DCE_DCD
DTE_CTS/DCE_RTS
D3
R2
R1
R4
R3
LTC2846
DTE_LL/DCE_RI
DTE_RI/DCE_LL
DTE_TM/DCE_RL
DTE_RL/DCE_TM
DTE_TXD/DCE_RXD
DTE_SCTE/DCE_RXC
DTE_TXC/DCE_TXC
DTE_RXC/DCE_SCTE
DTE_RXD/DCE_TXD
M0
M1
M2
DCE/DTE
V
CC
V
DD
V
EE
GND
2844 F26
C2
1
µ
F
R1
13k
C1
1
µ
F
C6
10
µ
F
C3
1
µ
F
C4
3.3
µ
F
D4
V
CC
5V
SHDN
V
IN
3.3V
CHARGE
PUMP
BOOST
SWITCHING
REGULATOR
L1
5.6
µ
H
+
33
7
35
4
36
D1
MBR0520
3
5
6
8
9
10
11
12
13
14
15
16
18
19
1, 19
2
3
4
5
6
7
8
10
9
D5
18
DCE/DTE
V
IN
D4ENB
R4EN
20
15
16
NC
V
IN
3.3V
23
R5
17
22
21
25
24
26
27
28
29
30
31
32
33
32
31
30
29
28
27
26
25
24
23
22
21
20
34
35
36
C5
10
µ
F
C9
1
µ
F
C7
1
µ
F
C8
1
µ
F
M0
M1
M2
DCE/DTE
M0
M1
M2
11
12
13
14
D1
D2
D3
R1
R2
R3
T
T
T
T
T
C10
1
µ
F
R2
4.3k
V
CC
5V
18
*
*OPTIONAL
21
25
LL
LL
RL
RL
TM
TM
RI
RI
2
14
24
11
15
12
17
9
3
1
4
19
20
8
23
10
6
22
5
13
7
16
TXD A
TXD B
SCTE A
SCTE B
RXD A
RXD B
RXC A
RXC B
RXC A
RXC B
RXD A
RXD B
RTS A
RTS B
DTR A
DTR B
CTS A
CTS B
DSR A
DSR B
CTS A
CTS B
SG
SHIELD
DB-25
CONNECTOR
TXC A
TXC B
SCTE A
SCTE B
TXD A
TXD B
TXC A
TXC B
DCD A
DCD B
DSR A
DSR B
RTS A
RTS B
DCD A
DCD B
DTR A
DTR B
DTE
DCE
17
V
IN
3.3V
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P20
LTC2844IG#PBF
Mfr. #:
Buy LTC2844IG#PBF
Manufacturer:
Analog Devices Inc.
Description:
RS-232 Interface IC 3.3V Sftwr-Sel Multiprotocol Tran
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
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