SP3485 Datasheet PDF – Duplex RS-485 Transceiver

Part Number: SP3485

Function: +3.3V Low Power Full Duplex RS-485 Transceivers with 10Mbps Data Rate

Package: DIP 8 Pin Type

Manufacturer: Signal Processing Technologies

Image and Pinouts:
SP3485 datasheet


The SP3481and the SP3485 are a family of +3.3V low power half-duplex transceivers that meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with the Sipex SP481, SP483, and SP485 devices as well as popular industry standards. The SP3481 and the SP3485 feature Sipex’s BiCMOS process, allowing low power operation without sacrificing performance. The SP3481 and SP3485 meet the electrical specifications of RS-485 and RS-422 serial protocols up to 10Mbps under load. The SP3481 is equipped with a low power Shutdown mode.


1. RS-485 and RS-422 Transceivers
2. Operates from a single +3.3V supply
3. Interoperable with +5.0V logic
4. Driver/Receiver Enable
5. Low Power Shutdown Mode (SP3481)
6. -7V to +12V Common-Mode Input Voltage Range
7. Allows up to 32 transceivers on the serial bus
8. Compatibility with the industry standard 75176 pinout
9. Driver Output Short-Circuit Protection

Receivers :

The receivers of the SP3481and SP3485 operate up to 10Mbps. The receiver for each of the three devices is equipped with fail-safe. Fail-safe guarantees that the receiver output will be in a HIGH state when the input is left unconnected.

Other data sheets are available within the file: SP3481, SP3481CN, SP3481CP ,SP3481EN, SP3481EP,

SP3485CN, SP3485CP, SP3485EN, SP3485EP

SP3485 Datasheet PDF Download

SP3485 pdf