LTC1543_15 Datasheet, PDF (1/20 Pages) Linear Technology – Software-Selectable Multiprotocol Transceiver

LTC1543
Software-Selectable
Multiprotocol Transceiver
FEATURES
s _{Software-Selectable Transceiver Supports:}
RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21
s _{TUV/Detecon Inc. Certified NET1 and NET2}
Compliant (Test Report No. NET2/102201/97)
s _{TBR2 Compliant (Test Report No. CTR2/022701/98)}
s _{Software-Selectable Cable Termination Using}
the LTC1344A
s _{Complete DTE or DCE Port with LTC1544, LTC1344A}
s _{Operates from Single 5V Supply}
U
APPLICATIO S
s _{Data Networking}
s _{CSU and DSU}
s _{Data Routers}
DESCRIPTIO
The LTC^®1543 is a 3-driver/3-receiver multiprotocol
transceiver that operates from a single 5V supply. The
LTC1543 and LTC1544 form the core of a complete software-
selectable DTE or DCE interface port that supports the
RS232, RS449, EIA530, EIA530-A, V.35, V.36 or X.21
protocols. Cable termination may be implemented using the
LTC1344A software-selectable cable termination chip or by
using existing discrete designs.
The LTC1543 runs from a single 5V supply using an internal
charge pump that requires only five space-saving surface
mounted capacitors. The part is available in a 28-lead SSOP
surface mount package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
DTE or DCE Multiprotocol Serial Interface with DB-25 Connector
LL CTS DSR
DCD DTR RTS
RXD RXC
TXC SCTE TXD
LTC1544
D4
R4 R3 R2 R1
D3 D2 D1
LTC1543
R3 R2 R1
D3 D2 D1
LTC1344A
18 13 5 22 6
10 8 23 20 19 4 1 7 16 3 9 17
12 15 11 24 14 2
DB-25 CONNECTOR
1543 TA01
sn1534 1543fas
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