參數(shù)資料
型號(hào)： 2847
廠商： Linear Technology Corporation
英文描述： Software-Selectable Multiprotocol Transceiver with Termination and 3.3V Digital Interface
中文描述： 軟件選擇多協(xié)議收發(fā)器終止和3.3V數(shù)字接口
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 275K
代理商： 2847
1
LTC2847
sn2847 2847fs
APPLICATIU
I
Data Networking
I
CSU and DSU
I
Data Routers
DESCRIPTIOU
The LTC
2847 is a 3-driver/3-receiver multiprotocol trans-
ceiver with on-chip cable termination. When combined with
the LTC2845, this chip set forms a complete software-
selectable DTE or DCE interface port that supports the
RS232, RS449, EIA530, EIA530-A, V.35, V.36 and X.21
protocols. All necessary cable termination is provided inside
the LTC2847.
The V
CC
supplies the drivers, the receivers and an internal
charge pump that requires only five space-saving surface
mounted capacitors. The V
IN
supply drives the digital inter-
face circuitry including the receiver output drivers. It can be
tied to V
CC
or be powered off a lower supply (down to 3V) to
interface with low voltage ASICs. The LTC2847 is available in
a 0.8mm tall, 5mm
×
7mm QFN package.
FEATURES
TYPICAL APPLICATIOU
, LTC and LT are registered trademarks of Linear Technology Corporation.
Complete DTE or DCE Multiprotocol Serial Interface with DB-25 Connector
I
Software-Selectable Transceiver Supports:
RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21
I
Operates from Single 5V Supply
I
Separate Supply Pin for Digital Interface Works
down to 3V
I
On-Chip Cable Termination
I
Complete DTE or DCE Port with LTC2845
I
Available in 38-Pin 5mm
×
7mm QFN Package
Software-Selectable
Multiprotocol Transceiver with
Termination and 3.3V Digital Interface
D2
D1
LTC2845
RTS
DTR
DSR
DCD
CTS
D3
R2
R1
R4
R3
LTC2847
RI
LL
TM
RL
TXD
SCTE
TXC
RXC
RXD
2
14
24
11
15
12
17
9
3
1
4
19
20
8
23
10
5
13
6
22
18
25
21
7
16
2847 TA01
D1
S
S
T
T
R
R
R
R
R
R
D
D
L
T
R
S
S
DB-25 CONNECTOR
T
D
D
D
D
D4
R5
D5
D2
D3
R1
R2
R3
T
T
T
T
T
T
C
C
R
*
*OPTIONAL
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