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參數資料
型號: LTC1343IGW#TRPBF
廠商: Linear Technology
文件頁數: 1/28頁
文件大小: 0K
描述: IC TXRX SOFTWARE-SELECTBL 44SSOP
標準包裝: 1,000
類型: 收發器
驅動器/接收器數: 4/4
規程: 多協議
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 44-BSOP(0.295",7.50mm 寬)
供應商設備封裝: 44-SSOP
包裝: 帶卷 (TR)
1
LTC1343
Software-Selectable
Multiprotocol Transceiver
s
Software-Selectable Transceiver Supports:
RS232, RS449, EIA-530, EIA-530-A, V.35, V.36,
X.21
s
NET1 and NET2 Compliant
s
Software-Selectable Cable Termination Using
the LTC1344
s
4-Driver/4-Receiver Configuration Provides a
Complete 2-Chip DTE or DCE Port
s
Operates from Single 5V Supply
s
Internal Echoed Clock and Loop-Back Logic
The LTC
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-
througharchitecturetosimplifyEMIshieldingandisavailable
in the 44-lead SSOP surface mount package.
DTE Multiprotocol Serial Interface with DB-25 Connector
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Data Networking
s
CSU and DSU
s
Data Routers
D2
LTC1343
RTS
DTR
DSR
DCD
CTS
RL
D1
D3
D4
R1
R3
R4
R2
D2
LTC1343
LL
TXD
SCTE
TXC
RXC
RXD
TM
LL
A
(141)
TXD
A
(103)
TXD
B
SCTE
A
(113)
SCTE
B
RXC
A
(115)
RXC
B
RXD
A
(104)
RXD
B
RTS
A
(105)
RTS
B
DTR
A
(108)
DTR
B
CTS
A
(106)
CTS
B
TM
A
(142)
SGND
(102)
SHIELD
(101)
18
2
14
24
11
15
12
17
9
3
1
4
19
20
23
6
22
8
10
5
13
21
7
16
25
1343 TA01
DB-25 CONNECTOR
LTC1344
D1
D3
D4
R1
R3
R4
R2
TXC
A
(114)
TXC
B
RL
A
(140)
DCD
A
(109)
DCD
B
DSR
A
(107)
DSR
B
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
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