The MAX3485 is a 3.3 V half-duplex RS-485/RS-422 transceiver for low-voltage industrial and embedded communication, with data rates up to 10 Mbps.
Product Overview
The MAX3485 is the 3.3 V member of the MAX348x RS-485 family and is pin-compatible with the industry-standard 75176. It contains one driver and one receiver with independent enable for half-duplex differential-bus operation, making it suitable for 3.3 V PLCs, sensors, and embedded systems.
Newfly supplies verified, RoHS-compliant MAX3485-class transceivers with cross-reference and BOM-matching support for production sourcing.
Key Features
- – 3.3 V supply (3.0–3.6 V)
- – Half-duplex RS-485 / RS-422
- – Data rate up to 10 Mbps (verify with manufacturer datasheet / variant)
- – Up to 32 transceivers on the bus (unit load; verify)
- – Driver and receiver enable controls
- – Low quiescent current with shutdown mode
- – SOIC-8 / DIP-8 / MSOP-8 packages
- – RoHS-compliant
Technical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 3.3 V (3.0–3.6 V) |
| Standard | RS-485 / RS-422 (TIA/EIA-485) |
| Mode | Half-duplex |
| Data Rate | Up to 10 Mbps (verify with manufacturer datasheet) |
| Bus Nodes | Up to 32 (unit load; verify) |
| Operating Temperature | 0°C to +70°C (commercial); -40°C to +85°C (extended, verify variant) |
| Package | SOIC-8, DIP-8, MSOP-8 (verify variant) |
| Compliance | RoHS |
Applications
– Industrial communication
– Embedded 3.3 V systems
– PLC equipment
– Multi-drop sensor networks
– Building automation
Why Choose Newfly Electronics
– Verified sourcing from ISO9001-certified manufacturers
– MOQ flexibility with small-quantity and prototype sourcing support
– Alternative-part and cross-reference service for standard RS-485 transceivers
– Full-board BOM sourcing to consolidate your component purchasing
– RoHS / REACH documentation support for compliance filing
FAQ
Q: Is the MAX3485 3.3 V or 5 V?
A: The MAX3485 operates from 3.3 V. For a 5 V RS-485 transceiver, consider the SN75176 or MAX485 families.
Q: How many nodes can share the bus?
A: Up to 32 unit-load transceivers on a single RS-485 bus; confirm your node’s unit load with the datasheet.
Q: Can you provide a cross-reference?
A: Yes. Share your BOM and Newfly will suggest compatible 3.3 V RS-485 alternatives.
