ISL32177EIRZ-T

Overview

The ISL32177EIRZ-T is a quad receiver integrated circuit designed for RS-422 and RS-485 communication standards. It operates within a supply voltage range of 3 V to 5.5 V, with a maximum rating of 5.5 V. The device supports data rates up to 80 Mb/s and features ±15 kV electrostatic discharge (ESD) protection on the bus lines. It draws a typical operating supply current of 15 mA. The component is housed in a 24-lead QFN-EP package measuring 4x4 mm and is rated for operation between -40°C and +85°C.

Feature Summary

• Provides four independent receivers compliant with RS-422 and RS-485 interface specifications.
• Integrates robust ±15 kV ESD protection directly on the differential bus pins.

Applications

• Industrial automation networks requiring high-speed serial communication
• Building automation systems utilizing RS-485 multi-drop configurations
• Data acquisition modules interfacing with field devices

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official Renesas documentation prior to integration. Ensure moisture sensitivity level handling procedures are followed during assembly to prevent package damage.

Selection Notes

Select this component when a quad receiver topology is required for RS-422/RS-485 buses. It is suitable for designs needing 80 Mb/s throughput and ±15 kV ESD immunity. Verify that the 3 V to 5.5 V supply range matches the system power architecture and that the QFN-EP-24 footprint fits the PCB layout constraints.

Part Context

This part belongs to the ISL32177E series of RS-422/RS-485 interface ICs manufactured by Renesas Electronics. It functions specifically as a receiver-only device, distinct from transceiver variants that include driver capabilities. The series is engineered for reliable data transmission in electrically noisy industrial environments.

Replacement Considerations

Consult Renesas datasheets for direct pin-compatible alternatives within the ISL3217x family. Verify electrical parameters such as data rate and ESD ratings match before substituting with other manufacturer components.

FAQ

Does the ISL32177EIRZ-T include transmitter drivers?

No, it is a quad receiver only. Driver functionality must be provided by separate components or transceivers.

What is the maximum data rate supported by this receiver?

The device supports data rates up to 80 Mb/s.

Is the device compatible with 3.3 V logic levels?

Yes, the operating supply voltage range is 3 V to 5.5 V, supporting 3.3 V systems.