The GATEMODE GM3085E is a high-speed RS-485/RS-422 transceiver designed for reliable data communication in industrial and embedded applications. It integrates one driver and one receiver in a compact SOP-8 package and supports data rates of up to 1 Mbps.
Featuring ±15 kV ESD protection on the RS-485/RS-422 A/B pins, the GM3085E helps protect against electrostatic discharge during operation. Its fail-safe receiver ensures a logic-high output when the receiver inputs are open or shorted, including when all connected bus transmitters are in a high-impedance state.
The device incorporates a slew-rate-limited driver to reduce electromagnetic interference (EMI) and signal reflections, supporting reliable data transmission. Its 1/8 unit-load input impedance allows up to 256 transceivers on a single bus, making it suitable for multi-node communication networks.
With low power consumption, a shutdown mode, and a wide operating temperature range, the GM3085E is an excellent choice for industrial automation, instrumentation, metering, and other communication systems.
Key Features
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Interface Support: RS-485 and RS-422 communication
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High-Speed Data Transfer: Supports data rates up to 1 Mbps
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ESD Protection: ±15 kV protection on A/B communication pins
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Multi-Node Connectivity: Supports up to 256 transceivers on a bus
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Fail-Safe Receiver: Maintains a logic-high output for open or shorted receiver inputs
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Slew-Rate-Limited Driver: Helps reduce EMI and signal reflections
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Half-Duplex Communication: Integrated driver and receiver
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Low-Power Operation: Includes low-current shutdown mode
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Compact Package: Industry-standard SOP-8
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Wide Operating Temperature: Suitable for operation from -40°C to +85°C
Applications
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Industrial automation and control systems
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Electricity, water, and gas meters
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Security and access control systems
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Industrial instrumentation and measurement equipment
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Lighting control systems
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EMI-sensitive communication equipment
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Embedded systems and multi-node communication networks
Technical Specifications
| Specification | Details |
|---|---|
| Product Model | GM3085E |
| Manufacturer | GATEMODE |
| Product Category | Integrated Circuits (ICs) – Interface, Drivers, Receivers, and Transceivers |
| Transceiver Type | RS-485/RS-422 |
| Package Type | SOP-8 |
| Supply Voltage | 3V–5.5V |
| Maximum Data Rate | 1 Mbps |
| Communication Mode | Half-Duplex |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Maximum Bus Nodes | 256 |
| ESD Protection | ±15 kV |
| Operating Temperature | -40°C to +85°C |
| Quiescent Supply Current | 600 µA |
| Key Features | Tx/Rx Enable, Shutdown Enable, Overcurrent Protection, Low-Power Mode |
| Receiver Protection | Fail-Safe Receiver |
| Driver Feature | Slew-Rate Limiting |




