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 DTETerminationPrice (1000+)
($ US)
1LTC2873 1 1 RS-232, RS-422, RS-485, RS-562 3V to 5.5V 26k 20Mbps (RS422/RS485), Selectable 1Mbps/250kbps (RS232/RS562)-- Included $4.45 (LTC2873CUFD#PBF)
2LTC2872 4 4 RS-232, RS-422, RS-485, RS-562 3.3V, 5V 16k 20Mbps (RS422/RS485), 500kbps (RS232/RS562)- DTE or DCE Included $6.45 (LTC2872CUHF#PBF)
3LTC2871 3 3 RS-232, RS-422, RS-485, RS-562 3.3V, 5V 16k 20Mbps (RS422/RS485), 500kbps (RS232/RS562)- DTE or DCE Included $5.45 (LTC2871CUHF#PBF)
4LTC2870 2 2 RS-232, RS-422, RS-485, RS-562 3.3V, 5V 26k 20Mbps (RS422/RS485), 500kbps (RS232/RS562)- DTE or DCE Included $5.00 (LTC2870CUFD#PBF)
5LTC2847 3 3 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 1k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE Included $10.90 (LTC2847CUHF#PBF)
6LTC2845 5 5 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 3.3V 1k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $6.75 (LTC2845CG#PBF)
7LTC2844 4 4 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 3.3V 1k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $5.75 (LTC2844CG#PBF)
8LTC2846 3 3 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 3.3V 2k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE Included $11.65 (LTC2846CG#PBF)
9LTC1546 3 3 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 2k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE Included $11.65 (LTC1546CG#PBF)
10LTC1545 5 5 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 2k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $6.75 (LTC1545CG#PBF)
11LTC1344A-- EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 2k--- Included $6.40 (LTC1344ACG#PBF)
12LTC1544 4 4 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 2k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Control DTE or DCE- $5.75 (LTC1544CG#PBF)
13LTC1543 3 3 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 2k 100kbps (RS232/RS562), 10Mbps (RS422/RS485), 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE- $7.00 (LTC1543CG#PBF)
14LTC1344-- EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 2k--- Included $6.40 (LTC1344CG#PBF)
15LTC1387 2 2 RS-232, RS-422, RS-485, RS-562 5V 6k 120kbps (RS232/RS562), 150kbps or 5Mbps (RS422/RS485)--- $4.50 (LTC1387CSW#PBF)
16LTC1343 4 4 EIA530, EIA530-A, RS-232, RS-449, V.35, V.36, X.21 5V 2k 4Mbps (V.35 Sync), 8Mbps (V.35 Async) Clock or Control, Data DTE or DCE- $12.60 (LTC1343CGW#PBF)
17LTC1334 4 4 RS-232, RS-422, RS-485, RS-562 5V 10k 120kbps (RS232/RS562), 5Mbps (RS422/RS485)--- $6.50 (LTC1334CNW#PBF)
18LTC1346A 3 3 V.35 5V 10k 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE- $6.75 (LTC1346ACSW#PBF)
19LTC1345 3 3 V.35 5V 10k 10Mbps (V.35 Async), 5Mbps (V.35 Sync) Clock, Data DTE or DCE- $7.30 (LTC1345CNW#PBF)
20LTC1323 2 3 LocalTalk, RS-232, RS-422 5V 10k 120kbps (RS232/RS562), 2Mbps (RS422/RS485) Control, Data DTE--
21LTC1335 4 4 RS-422, RS-485, RS-562 5V 10k 10Mbps (RS422/RS485), 120kbps (RS232/RS562)--- $5.25 (LTC1335CN#PBF)
22LTC1322 4 4 RS-422, RS-485, RS-562 5V 10k 10Mbps (RS422/RS485), 120kbps (RS232/RS562)--- $5.25 (LTC1322CN#PBF)
23LTC1321 2 2 RS-422, RS-485, RS-562 5V 10k 10Mbps (RS422/RS485), 120kbps (RS232/RS562)--- $4.60 (LTC1321CN#PBF)
24AD7306 3 2 RS-232, RS-422 5V- 100 kbps (RS-232) Data DTE or DCE- $10.14 (AD7306JNZ)