ISL3172EIBZ

Drivers, Receivers, Transceivers Overview

The ISL3172EIBZ is a half-duplex RS-485/RS-422 transceiver manufactured by Renesas Electronics. It operates on a single 3.3V supply and supports data rates up to 250 kbps. The device features ±15kV IEC61000 ESD protection on RS-485 I/O pins and >7kV HBM protection on other pins. It incorporates full fail-safe receivers that ensure a logic high output when inputs are floating, shorted, or undriven. Hot-plug circuitry maintains three-state outputs during power-up. The transceiver presents a true 1/8 unit load, allowing up to 256 devices on the bus. It includes current limiting and thermal shutdown for driver overload protection. Operating temperature ranges from -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• IEC61000 compliant ESD protection with ±15kV rating on differential I/O pins
• Full fail-safe receiver design ensuring defined logic state under open, short, or floating conditions
• Hot-plug capability maintaining high-impedance states during power stabilization
• True 1/8 unit load architecture enabling high node density without repeaters

Drivers, Receivers, Transceivers Applications

• Remote utility meter reading systems requiring high node counts
• Industrial control networks utilizing RS-485 communication protocols
• Building automation systems with balanced communication requirements

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'IBZ' corresponds to the SOIC-8 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure the selected component matches the required half-duplex configuration. Validate operating temperature range specifications against environmental constraints. Cross-reference datasheet revisions to confirm pinout and electrical parameter consistency.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring robust ESD protection and low power consumption in 3.3V systems. The true 1/8 unit load feature distinguishes it from standard 1/32 unit load devices, reducing the need for bus repeaters. Verify compatibility with slew rate limited drivers if EMI reduction is critical. Ensure the half-duplex topology aligns with system communication needs rather than full-duplex alternatives.

Drivers, Receivers, Transceivers Part Context

The ISL3172EIBZ belongs to the ISL317xE family of transceivers designed for RS-485 and RS-422 standards. This series emphasizes low power operation and high reliability in industrial environments. The IBZ suffix specifically denotes the SOIC-8 surface mount package variant. The family shares common features such as fail-safe receivers and hot-plug functionality across different duplex configurations.

Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes within the same family include variants with different package options or duplex configurations, such as ISL3172EIUZ for MSOP-8 packaging. Verify functional equivalence regarding data rate limits and ESD protection levels before substitution. Check for any changes in pinout or supply voltage requirements when considering cross-package replacements.