SP3485EN Low Power Half-Duplex RS-485 Transceiver IC - SOP-8 Package is a low-power half-duplex transceiver designed for RS-485 and RS-422 serial communication. It operates from a single 3.3 V supply while remaining interoperable with 5 V logic, supports data rates up to 10 Mbps, and allows up to 32 transceivers on a single bus. With driver and receiver enable controls, a wide common-mode input range, and driver short-circuit protection, it is suitable for industrial communication, automation systems, embedded controllers, and long-distance serial data transmission.
| Parameter | Value |
|---|---|
| Product Type | RS-485 / RS-422 Transceiver IC |
| Model | SP3485EN |
| Brand | MaxLinear |
| Interface | RS-485 / RS-422 |
| Communication Mode | Half-Duplex |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Maximum Data Rate | 10 Mbps |
| Supply Voltage | 3.0 V to 3.6 V |
| Nominal Supply Voltage | 3.3 V |
| Common-Mode Input Range | -7 V to +12 V |
| Maximum Bus Nodes | 32 |
| Maximum Supply Current | 2 mA |
| Typical Shutdown Current | 10 µA |
| Operating Temperature | -40°C to +85°C |
| Package | SOP-8 / SOIC-8 |
| Mounting Type | Surface Mount |

| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | RO | Receiver Output |
| 2 | RE | Receiver Enable, Active LOW |
| 3 | DE | Driver Enable, Active HIGH |
| 4 | DI | Driver Input |
| 5 | GND | Ground |
| 6 | A | Non-Inverting RS-485 Bus Line |
| 7 | B | Inverting RS-485 Bus Line |
| 8 | VCC | Positive Supply Voltage |
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1 × SP3485EN Low Power Half-Duplex RS-485 Transceiver IC - SOP-8 Package
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