ISL3178AEMBZ

Overview

The ISL3178AEMBZ is a half-duplex RS-485/RS-422 transceiver in an 8-lead SOIC package. It operates on a single 3.0V to 3.6V supply with a maximum data rate of 10Mbps and a quiescent current of 800µA (max). The device features ±15kV IEC61000 ESD protection on bus pins, full fail-safe receivers, and hot-plug capability. It supports up to 256 devices on the bus due to its true 1/8 unit load design. Operating temperature range is -55°C to +125°C.

Feature Summary

• IEC61000 ESD protection on RS-485 I/O pins
• Full fail-safe receiver design
• Hot plug functionality during power-up
• True 1/8 unit load for high node counts

Applications

• Automated utility meter reading systems
• High node count systems
• Field bus networks
• Security camera networks
• Building environmental control/lighting systems

Procurement Notes

Verify component authenticity through authorized channels. Confirm datasheet revision FN6887 Rev 3.00 matches specifications. Check for moisture sensitivity level compliance prior to soldering. Ensure ordering suffix aligns with required packaging format.

Selection Notes

Select this part for applications requiring extended industrial temperature ranges and robust ESD protection. Verify that the 10Mbps data rate meets system requirements. Confirm compatibility with 3.3V logic levels and check if shutdown mode benefits apply to the specific use case.

Part Context

This component belongs to the Intersil ISL3178AE series of low-power, high-speed RS-485/RS-422 transceivers. It is designed for balanced communication in noisy environments. The manufacturer has indicated it is not recommended for new designs.

Replacement Considerations

No recommended replacement is listed in the official documentation. Contact Technical Support Center at 1-888-INTERSIL or www.intersil.com/tsc for alternatives.

FAQ

What is the common-mode voltage range?

-7V to +12V

How does the fail-safe feature work?

It guarantees a logic high receiver output if inputs are floating, shorted, or terminated but undriven.

What is the shutdown supply current?

10nA typical