SP3490EN Datasheet PDF – Full Duplex RS-485 Transceiver

Part Number: SP3490EN

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

Package: SOP 8 Pin Type

Manufacturer: Signal Processing Technologies


SP3490EN datasheet



The SP3490 and the SP3491 are +3.3V low power full 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 SP490 and SP491 devices as well as popular industry standards. The SP3490 and the SP3491 feature Sipex’s BiCMOS process, allowing low power operation without sacrificing performance.


1. Full Duplex RS-485 and RS-422 Transceivers
2. Operates from a single +3.3V supply
3. Interoperable with +5.0V logic
4. Allows up to 32 transceivers on the serial bus



Pin 1 – VCC – Positive supply +3.00 < VCC < +3.60
Pin 2 – R – Receiver output.
Pin 3 – D – Driver input.
Pin 4 – GND – Ground connection.
Pin 5 – Y – Non-inverting driver output.
Pin 6 – Z – Inverting driver output.
Pin 7 – B – Inverting receiver input.
Pin 8 – A – Non-inverting receiver input.

Other data sheets are available within the file: SP3490, SP3490C, SP3490CN, SP3490CP, SP3490E

SP3490EN Datasheet PDF Download

SP3490EN pdf