ISL8488IB

Drivers, Receivers, Transceivers Overview

The ISL8488IB is a full-duplex RS-422/RS-485 transceiver manufactured by Intersil, now part of Renesas Electronics. It operates on a single 5V supply and supports data rates up to 250 kb/s with slew-rate limited drivers to minimize electromagnetic interference. The device features ±15kV ESD protection on both driver outputs and receiver inputs without latch-up. It provides one driver and one receiver in an 8-lead SOIC-Narrow package, designed for balanced communication networks.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation compliant with RS-422 and RS-485 standards
• Slew-rate limited drivers reduce EMI and reflections
• ±15kV ESD protection on all I/O pins
• Fail-safe receiver design ensures logic high output when inputs are floating

Drivers, Receivers, Transceivers Applications

• Multidrop communication networks
• Multipoint bus systems
• Industrial control interfaces
• Building automation systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix (e.g., IBZ, IB-T) against the datasheet to confirm package type and tape/reel configuration. Confirm RoHS compliance status as manufacturing processes evolve. Check current availability as older Intersil parts may have end-of-life or obsolescence statuses. Ensure the supplier provides valid traceability documentation for critical applications.

Drivers, Receivers, Transceivers Selection Notes

Select this component for low-speed, full-duplex applications requiring robust ESD protection. The slew-rate limiting feature makes it suitable for noisy environments where signal integrity is critical. Compare against higher-speed variants like the ISL8491 if data rates exceed 250 kb/s. Ensure the system voltage aligns with the specified 5V operating range.

Drivers, Receivers, Transceivers Part Context

This device belongs to the ISL8488E family of BiCMOS transceivers. It shares functional similarities with the ISL83488 but operates at 5V instead of 3.3V. The series is characterized by its focus on reliability and noise immunity through controlled driver slew rates and comprehensive input/output protection mechanisms.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitutes include the ISL8488EIB and ISL8488EIBZA from Intersil/Renesas. Cross-voltage replacements such as the ISL83488 require level shifting considerations due to the 3.3V vs 5V supply difference.