SP1485E


20Mbps Half-Duplex RS-485 Transceivers with +/-15KV ESD

Features

  • +5V Only
  • Low Power BiCMOS
  • Driver/Receiver Enable for Multi-Drop configurations
  • Enhanced ESD Specifications:
    • ± 15KV Human Body Model
    • ± 15KV IEC1000-4-2 Air Discharge
Description
The SP1481E and the SP1485E are a family of half-duplex transceivers that meet the specifications of RS-485 and RS-422 serial protocols with enhanced ESD performance. The ESD tolerance has been improved on these devices to over +15KV for both Human Body Model and IEC1000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with Exar's SP481 and SP485 devices as well as popular industry standards. As with the original versions, the SP1481E and the SP1485E feature Exar's BiCMOS design allowing low power operation without sacrificing performance. The SP1481E and SP1485E meet the requirements of the RS-485 and RS-422 protocols up to 20Mbps under load. The SP1481E is equipped with a low power Shutdown mode.

For technical support or help choosing a product please email Exar’s Serial Technical Support group at:  serialtechsupport@exar.com.
Part NumberPkg CodeRoHSMin
Temp.
(°C)
Max
Temp.
(°C)
StatusBuy NowOrder Samples
SP1485ECN-LNSOIC8NSOIC8070Active
SP1485ECN-L/TRNSOIC8NSOIC8070Active
SP1485EEN-LNSOIC8NSOIC8-4085Active
SP1485EEN-L/TRNSOIC8NSOIC8-4085Active
SP1485EMN-LNSOIC8NSOIC8-40125Active
SP1485EMN-L/TRNSOIC8NSOIC8-40125Active
SP1485ECNNSOIC8070EOL
SP1485ECPPDIP8070EOL
SP1485ECP-LPDIP8PDIP8070EOL
SP1485EENNSOIC8-4085EOL
SP1485EEPPDIP8-4085EOL
SP1485EEP-LPDIP8PDIP8-4085EOL
SP1485EMNNSOIC8-40125EOL
SP1485ECN/TRNSOIC8070OBS
SP1485EEN/TRNSOIC8-4085OBS
SP1485EMN/TRNSOIC8-40125OBS

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs. 
Specifications
Vcc (V)5
No. of Tx1
No. ofRx1
DuplexHalf
Data Rate (kbps)20000
ESD (KV)15
Rx Fail-Safe OpenYes
Rx Fail-Safe ShortNo
ShutdownFalse
Multi-Drop Nodes32