Software-Selectable Multiprotocol Transceiver
LTC1544 Software-Selectable Multiprotocol Transceiver
FEATURES
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DESCRIPTIO
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U APPLICATIO S
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Softwa...
Description
LTC1544 Software-Selectable Multiprotocol Transceiver
FEATURES
s s
DESCRIPTIO
s s
s
s
U APPLICATIO S
s s s
Software-Selectable Transceiver Supports: RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21 TUV/Detecon Inc. Certified NET1 and NET2 Compliant (Test Report No. NET2/102201/97) TBR2 Compliant (Test Report No. CTR2/022701/98) Software-Selectable Cable Termination Using the LTC1344A Complete DTE or DCE Port with LTC1543, LTC1344A or LTC1546 with Integrated Termination Operates from Single 5V Supply with LTC1543
The LTC®1544 is a 4-driver/4-receiver multiprotocol transceiver. The LTC1544 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 for the LTC1543 may be implemented using the LTC1344A software-selectable cable termination chip or by using existing discrete designs. The LTC1546 includes software-selectable cable termination onchip. The LTC1544 runs from a 5V supply and the charge pump on the LTC1543 or LTC1546. The part is available in a 28-lead SSOP surface mount package.
Data Networking CSU and DSU Data Routers
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
LL CTS DSR
DTE or DCE Multiprotocol Serial Interface with DB-25 Connector
DCD DTR RTS RXD RXC TXC SCTE TXD
LTC1544 D4 R4 R3 R2 R1 D3 D2 D1 R3 R2 R1
LTC1543 D3 D2 D1
18 LL A (141)
13 5 CTS B CTS A (106)
10 8 DSR B DSR A (109)...
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