ISL3155EIBZ-T7A

Overview

The ISL3155EIBZ-T7A is a single half-duplex RS-485/RS-422 transceiver manufactured by Renesas Electronics. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 1 Mb/s. The device features an SOIC-8 surface-mount package with 8 pins, designed for industrial applications across a temperature range of -40°C to +85°C. Key electrical specifications include a maximum high-level output current of 28mA and a propagation delay of 45ns at the specified load conditions.

Feature Summary

• Provides differential input and differential output signaling for robust noise immunity in noisy environments.
• Integrates ESD protection compliant with IEC61000 standards to safeguard against electrostatic discharge events.
• Includes a shutdown mode that significantly reduces power consumption during idle periods.

Applications

• Industrial automation control systems requiring reliable serial communication.
• Building automation networks utilizing RS-485 bus topologies.
• Metering equipment operating in harsh environmental conditions.

Procurement Notes

Verify the specific suffix 'T7A' corresponds to the reel packaging format required for automated assembly processes. Confirm that the 5V operation voltage aligns with the target system's power rails, as this component does not support lower voltage logic levels. Ensure compliance with RoHS directives if applicable to the manufacturing region.

Selection Notes

Select this component when a single half-duplex transceiver with integrated ESD protection is needed for 5V systems. It serves as a suitable alternative to standard RS-485 drivers requiring external protection components. Consider the SOIC-8 footprint constraints and thermal dissipation requirements for dense PCB layouts.

Part Context

This part belongs to the ISL315xE series of low-power RS-485/RS-422 transceivers from Renesas. The series is characterized by its ruggedized design and compatibility with standard industrial communication protocols. It complements other variants like the ISL3152E and ISL3153E which may offer different duplex modes or pin configurations.

Replacement Considerations

Direct substitutes include the ISL3155EIBZ (tube package) for manual assembly needs. Other family members such as the ISL3152EIBZ-T7A offer similar functionality but may differ in specific electrical characteristics or pinout arrangements.