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LTC1544

Linear Technology
Part Number LTC1544
Manufacturer Linear Technology
Description Software-Selectable Multiprotocol Transceiver
Published Mar 27, 2005
Detailed Description LTC1544 Software-Selectable Multiprotocol Transceiver FEATURES s s DESCRIPTIO s s s s U APPLICATIO S s s s Softwa...
Datasheet PDF File LTC1544 PDF File

LTC1544
LTC1544

Overview
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) 22 6 DCD B DCD A (107) 23 20 19 4 DTR B DTR A (108) RTS B RTS A (105) SHIELD (101) 1 SG (102) 7 16 3 RXD B RXD A (104) 9 RXC B 17 RXC A (115) 12 15 11 24 14 SCTE B SCTE A (113) TXD B TXD A (103) TXC B TXC A (114) DB-25 CONNECTOR U LTC1344A 2 1544 TA01 U 1 LTC1544 ABSOLUTE (Note 1) AXI U RATI GS U U W PACKAGE/ORDER I FOR ATIO TOP VIEW VCC VDD D1 D2 D3 R1 R2 R3 D4 1 2 3 D1 4 5 6 7 8 9 R1 R2 R3 D4 R4 D2 D3 25 D1 B 24 D2 A 23 D2 B 22 D3/R1 A 21 D3/R1 B 20 R2 A 19 R2 B 18 R3 A 17 R3 ...


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