UM3486EESA

Drivers, Receivers, Transceivers Overview

The UM3486EESA is a half-duplex RS-485 transceiver manufactured by Union Semiconductor International Limited. It operates within a supply voltage range of 3V to 5.5V and features ±15kV ESD protection on the bus pins. The device incorporates slew-rate limiting to reduce electromagnetic interference (EMI) during data transmission. It supports up to 250 kbps data rates and provides high receiver sensitivity with an input impedance compatible with standard RS-485 networks. The component is housed in an 8-pin SOP package.

Drivers, Receivers, Transceivers Feature Summary

• Half-duplex communication capability for two-wire RS-485 networks
• Integrated ±15kV electrostatic discharge protection on bus lines
• Slew-rate limited outputs to minimize signal ringing and EMI
• Wide operating supply voltage range from 3V to 5.5V

Drivers, Receivers, Transceivers Applications

• Industrial automation control systems
• Building automation and HVAC networks
• Metering and utility infrastructure communication
• Multi-drop serial communication buses

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific datasheet revision and manufacturer documentation to confirm electrical characteristics and pinout compatibility before integration. Ensure that the selected component matches the required operating temperature range and packaging specifications for the target application environment. Cross-reference official part numbers to avoid counterfeit or obsolete inventory risks.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing half-duplex RS-485 interfaces requiring robust ESD protection and controlled signal edge rates. It is suitable for applications where power consumption must be managed within a 3V to 5.5V range. Consider the 250 kbps speed limit and SOP-8 footprint constraints during schematic capture and PCB layout planning.

Drivers, Receivers, Transceivers Part Context

This transceiver belongs to the RS-485 interface IC family designed for reliable serial communication in noisy environments. It complements other components in industrial networking stacks by providing physical layer connectivity. The device is engineered to meet standard RS-485 electrical requirements while offering enhanced protection features for harsh operational conditions.

Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes may include other half-duplex RS-485 transceivers with similar voltage ranges and ESD ratings, such as the MAX13487 or SN65HVD72. Verify pin compatibility and electrical parameters before substitution.