LTC1544IG#TR Linear Technology, LTC1544IG#TR Datasheet - Page 18

• Manufacturer Part Number: LTC1544IG#TR
• Description: IC TXRX SFTWR SEL DTE/DCE 28SSOP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1544IG#TR

• Number Of Drivers/receivers: 4/4
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Protocol: -

LTC1544
TYPICAL APPLICATIO S
18
DTE_RXC/DCE_SCTE
DTE_SCTE/DCE_RXC
DTE_DCD/DCE_DCD
DTE_TXD/DCE_RXD
DTE_RXD/DCE_TXD
DTE_DTR/DCE_DSR
DTE_DSR/DCE_DTR
DTE_TXC/DCE_TXC
DTE_RTS/DCE_CTS
DTE_CTS/DCE_RTS
DTE_LL/DCE_TM
DTE_TM/DCE_LL
DTE_RL/DCE_RL
DCE/DTE
C10
1 F
LB
M2
M1
M0
Figure 25. Controller-Selectable Multiprotocol DTE/DCE Port with RL, LL, TM and DB-25 Connector
C3
1 F
V
5V
C9
1 F
CC
1 F
C1
C5
1 F
100k
R1
V
CC
10
12
13
14
15
16
20
22
11
25
40
10
11
12
13
14
U
1
2
4
3
8
5
6
7
9
1
2
3
4
5
6
7
8
9
V
V
CTRL
LATCH
INVERT
423SET
GND
M0
M1
M2
DCE/DTE
CC
DD
LTC1544
LTC1343
CHARGE
D2
D3
D4
D1
D1
D2
D3
D4
PUMP
R1
R2
R3
R4
LB
R1
R2
R3
R4
23
INVERT
GND
DCE
V
M2
M1
M0
EC
EE
32
31
30
25
24
23
22
21
20
19
18
17
16
15
44
43
42
41
39
38
37
36
35
34
33
29
28
27
26
21
19
18
17
24
28
27
26
V
CC
NC
+
C2
1 F
C4
3.3 F
C11
1 F
C13
1 F
C12
1 F
14
2
V
V
CC
EE
100pF
C6
3
5
100pF
4
C7
6
8
100pF
7
C8
11
9
10
12
16
13
15 18 17 19 20 22
LTC1344A
23 24
LATCH
1
21
18
14
24
10
22
13
11
12
17
19
20
15
16
25
23
21
2
4
8
6
5
9
3
7
1
1544 F25
TXC A
TXC B
RXC A
RXC B
RXD A
RXD B
TM A
SG
SHIELD
RTS A
RTS B
DTR A
DTR B
DCD A
DCD B
DSR A
DSR B
CTS A
CTS B
RL A
DTE
LL A
TXD A
TXD B
SCTE A
SCTE B
CONNECTOR
DB-25
SCTE A
SCTE B
TXD A
TXD B
DCE
TM A
RXD A
RXD B
RXC A
RXC B
TXC A
TXC B
LL A
CTS A
CTS B
DSR A
DSR B
DCD A
DCD B
DTR A
DTR B
RTS A
RTS B
RL A