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LTC1343IGW Datasheet

  • LTC1343IGW

  • Software-Selectable Multiprotocol Transceiver

  • 385.24KB

  • 28頁(yè)

  • LINER

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LTC1343
Software-Selectable
Multiprotocol Transceiver
FEATURES
s
DESCRIPTIO
s
s
s
s
s
Software-Selectable Transceiver Supports:
RS232, RS449, EIA-530, EIA-530-A, V.35, V.36,
X.21
NET1 and NET2 Compliant
Software-Selectable Cable Termination Using
the LTC1344
4-Driver/4-Receiver Configuration Provides a
Complete 2-Chip DTE or DCE Port
Operates from Single 5V Supply
Internal Echoed Clock and Loop-Back Logic
APPLICATIO S
s
s
s
Data Networking
CSU and DSU
Data Routers
, LTC and LT are registered trademarks of Linear Technology Corporation.
The LTC
廬
1343 is a 4-driver/4-receiver multiprotocol trans-
ceiver that operates from a single 5V supply. Two LTC1343s
form the core of a complete software-selectable DTE or DCE
interface port that supports the RS232, RS449, EIA-530,
EIA-530-A, V.35, V.36 or X.21 protocols. Cable termination
may be implemented using the LTC1344 software-selectable
cable termination chip or by using existing discrete designs.
The LTC1343 runs from a single 5V supply using an internal
charge pump that requires only five space saving surface mount
capacitors. The mode pins are latched internally to allow sharing
of the select lines between multiple interface ports.
Software-selectable echoed clock and loop-back modes help
eliminate the need for external glue logic between the serial
controller and line transceiver. The part features a flow-
through architecture to simplify EMI shielding and is available
in the 44-lead SSOP surface mount package.
TYPICAL APPLICATIO
CTS
DSR
DCD
DTE Multiprotocol Serial Interface with DB-25 Connector
DTR
RTS
RL
TM
RXD
RXC
TXC
SCTE
TXD
LL
LTC1343
D4
R4
R3
R2
R1
D3
D2
D1
R4
R3
R2
LTC1343
D4
R1
D3
D2
D1
13 5
22 6
10 8
23 20 19
4
21
1
7
25
16 3
9
17 12 15
11 24 14 2
DB-25 CONNECTOR
U
LTC1344
18
U
U
DSR B
DSR A (107)
RL A (140)
CTS B
CTS A (106)
DTR B
DTR A (108)
RTS B
RTS A (105)
SHIELD (101)
SGND (102)
TM A (142)
RXD B
RXD A (104)
RXC B
RXC A (115)
DCD B
DCD A (109)
SCTE B
SCTE A (113)
TXD B
TXD A (103)
LL A (141)
TXC B
TXC A (114)
1343 TA01
1

LTC1343IGW 產(chǎn)品屬性

  • LTC1343

  • 27

  • 集成電路 (IC)

  • 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 4/4

  • 多協(xié)議

  • 4.75 V ~ 5.25 V

  • 表面貼裝

  • 44-BSOP（0.295"，7.50mm 寬）

  • 44-SSOP

  • 管件

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