Multiprotocol Transceivers

Analog Devices’ RS-232/RS-485 multiprotocol transceivers are the only parts in the market that allow protocol switching and allow for switching between half-/full-duplex operation and switching on/off termination resistors, both of which minimize physical user intervention when reconfiguring networks. Features include 3.3 V to 5 V operation, up to ±26 kV ESD, a logic supply pin, and small LFCSP packages. As large-scale computing applications typically require more protocols than the RS-232 and RS-485 protocols found in everyday applications, we support legacy protocols. These include V.28 (RS-232), V.35, RS-449, RS-530, RS-530-A, V.36, or X.21. Software-selectable protocol, cable termination, and data terminal equipment (DTE) or data communications equipment (DCE) configurations all provide convenient flexibility.
Product Selection Table

Multiprotocol Transceivers

  Hold Shift Key for secondary sorting
SortOrderPart#Number TxNumber RxInterface ProtocolSupply Voltage RangeESD Protection
(V)
Multiprotocol Data RateSignalsDCE or DTETerminationUS Price 1000 to 4999
($ US)
1LTC1343 4 4 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 2 4Mbps (V.35 Sync), 8Mbps (V.35 Async) Clock or Control, Data DTE or DCE- $12.60 (LTC1343CGW#PBF)
2LTC2873 1 1 RS232, RS422, RS485, RS562 3V to 5.5V 26 20Mbps (RS422/RS485), Selectable 1Mbps/250kbps (RS232/RS562)-- Included $4.45 (LTC2873CUFD#PBF)
3LTC2872 4 4 RS232, RS422, RS485, RS562 3.3V, 5V 16 20Mbps (RS422/RS485), 500kbps (RS232/RS562)- DTE or DCE Included $6.45 (LTC2872CUHF#PBF)
4LTC2871 3 3 RS232, RS422, RS485, RS562 3.3V, 5V 16 20Mbps (RS422/RS485), 500kbps (RS232/RS562)- DTE or DCE Included $5.45 (LTC2871CUHF#PBF)
5LTC2870 2 2 RS232, RS422, RS485, RS562 3.3V, 5V 26 20Mbps (RS422/RS485), 500kbps (RS232/RS562)- DTE or DCE Included $5.00 (LTC2870CUFD#PBF)
6LTC2847 3 3 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 1 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE Included $10.90 (LTC2847CUHF#PBF)
7LTC2845 5 5 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 3.3V 1 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $6.75 (LTC2845CG#PBF)
8LTC2844 4 4 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 3.3V 1 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $5.75 (LTC2844CG#PBF)
9LTC2846 3 3 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 3.3V 2 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE Included $11.65 (LTC2846CG#PBF)
10LTC1546 3 3 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 2 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE Included $11.65 (LTC1546CG#PBF)
11LTC1545 5 5 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 2 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $6.75 (LTC1545CG#PBF)
12LTC1344A-- EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 2--- Included $6.40 (LTC1344ACG#PBF)
13LTC1544 4 4 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 2 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $5.75 (LTC1544CG#PBF)
14LTC1543 3 3 EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 2 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE- $7.00 (LTC1543CG#PBF)
15LTC1344-- EIA530, EIA530-A, RS232, RS449, V.35, V.36, X.21 5V 2--- Included $6.40 (LTC1344CG#PBF)
16LTC1387 2 2 RS232, RS422, RS485, RS562 5V 6 120kbps (RS232/RS562), 150kbps or 5Mbps (RS422/RS485)--- $4.50 (LTC1387CSW#PBF)
17LTC1334 4 4 RS232, RS422, RS485, RS562 5V 10 120kbps (RS232/RS562), 5Mbps (RS422/RS485)--- $6.50 (LTC1334CNW#PBF)
18LTC1346A 3 3 V.35 5V 10 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE- $6.75 (LTC1346ACSW#PBF)
19LTC1345 3 3 V.35 5V 10 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE- $7.30 (LTC1345CNW#PBF)
20LTC1323 2 3 LocalTalk, RS232, RS422 5V 10 120kbps (RS232/RS562), 2Mbps (RS422/RS485) Control, Data DTE- $4.40 (LTC1323CS16#PBF)
21LTC1335 4 4 RS422, RS485, RS562 5V 10 10Mbps (RS422/RS485), 120kbps (RS232/RS562)--- $5.25 (LTC1335CSW#PBF)
22LTC1322 4 4 RS232, RS422, RS485, RS562 5V 10 10Mbps (RS422/RS485), 120kbps (RS232/RS562)--- $5.25 (LTC1322CN#PBF)
23LTC1321 2 2 RS232, RS422, RS485, RS562 5V 10 10Mbps (RS422/RS485), 120kbps (RS232/RS562)--- $4.60 (LTC1321CSW#PBF)