LTC1545 Datasheet, PDF (1/16 Pages) Linear Technology – Software-Selectable Multiprotocol Transceiver

LTC1545
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. NET2/071601/98)
s _{TBR2 Compliant (Test Report No. CTR2/071601/98)}
s _{Software-Selectable Cable Termination Using}
the LTC1344A
s _{Complete DTE or DCE Port with LTC1543, LTC1344A}
s _{Operates from Single 5V Supply with LTC1543}
U
APPLICATIO S
s _{Data Networking}
s _{CSU and DSU}
s _{Data Routers}
DESCRIPTIO
The LTC^®1545 is a 5-driver/5-receiver multiprotocol trans-
ceiver. The LTC1545 and LTC1543 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 LTC1545 runs from a 5V supply and the charge pump on
the LTC1543. The part is available in a 36-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
RL TM RI LL CTS DSR
DCD DTR RTS
RXD RXC
TXC SCTE TXD
LTC1545
D5
D4
R5 R4
R3 R2 R1
D3 D2 D1
LTC1543
R3 R2 R1
D3 D2 D1
LTC1344A
21 25 * 18 13 5 10 8
22 6 23 20 19 4 1 7 16 3 9 17
DB-25 CONNECTOR
12 15 11 24 14 2
*OPTIONAL
1545 TA01
1