ISL3259EIUZ

Overview

The ISL3259EIUZ is a half-duplex RS-485/RS-422 transceiver manufactured by Renesas Electronics. It operates on a single 5V supply and supports data rates up to 100 Mb/s. The device features IEC 61000-4-2 electrostatic discharge (ESD) protection rated at ±15 kV for air gap and ±8 kV for contact discharge. It includes a shutdown mode that reduces power consumption significantly. The component is housed in an 8-lead MSOP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated high-voltage ESD protection compliant with IEC 61000-4-2 standards
• Low-power shutdown mode for energy efficiency
• Fail-safe receiver design ensures logic high output when bus is idle

Applications

• Industrial automation control systems
• Building automation networks
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'IUZ' corresponds to the MSOP-8 package variant. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates. Ensure the source provides traceability to Renesas Electronics to guarantee authenticity and avoid counterfeit components.

Selection Notes

Select this component for applications requiring robust ESD immunity in noisy industrial environments. Compare against the ISL3259EIRZ if a DFN-10 package is preferred for different board space constraints. Verify that the 100 Mb/s speed requirement aligns with system timing needs, as lower-speed alternatives like the ISL3159EIUZ may offer cost benefits for slower buses.

Part Context

This part belongs to the ISL3259E series of RS-485/RS-422 interface ICs from Renesas. It is designed for reliable communication in electrically noisy environments. The series typically includes variants with different packaging options to suit various PCB layout requirements while maintaining consistent electrical performance characteristics.

Replacement Considerations

The ISL3259EIRZ serves as a pin-compatible alternative with a DFN-10 package. Direct substitution requires verifying thermal dissipation capabilities and footprint compatibility during redesign.