ISL3159EFUZ

Overview

The ISL3159EFUZ is a half-duplex RS-485 transceiver manufactured by Renesas Electronics Corporation. It operates from a single 3V supply and supports data rates up to 40Mb/s. The device features ±15kV ESD protection on the bus pins, ensuring robust performance in harsh environments. It is housed in an 8-lead TSSOP package with a width of 4.4mm. The component is rated for industrial temperature ranges, typically spanning from -40°C to +85°C or higher depending on specific grade variants. Key electrical characteristics include a low quiescent current of approximately 4mA during operation and differential output capability compliant with RS-422/RS-485 standards.

Feature Summary

• Supports high-speed data transmission up to 40Mb/s over half-duplex lines
• Provides ±15kV electrostatic discharge (ESD) protection on bus terminals
• Operates efficiently from a single 3V power supply
• Ensures reliable communication through full failsafe receiver functionality

Applications

• Industrial automation control systems requiring robust serial communication
• Building automation networks utilizing RS-485 bus topologies
• Smart metering infrastructure for utility data collection
• Medical equipment interfaces needing ESD-resistant signal integrity

Procurement Notes

Verify the exact suffix designation against official Renesas documentation to confirm temperature range and packaging specifications. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Ensure compatibility with existing board layouts regarding the 8-lead TSSOP footprint dimensions.

Selection Notes

Select this component when designing systems requiring high-speed RS-485 communication with integrated ESD protection. Consider the 3V supply requirement and ensure voltage levels match system logic. Evaluate thermal management needs based on the specified operating temperature range and package thermal resistance characteristics.

Part Context

The ISL3159 series belongs to Renesas' portfolio of interface ICs derived from Intersil technology. These devices are designed for reliable data transmission in noisy industrial environments. The EFUZ variant specifically denotes the TSSOP package option within the broader ISL3159 family of RS-485 transceivers.

Replacement Considerations

Check for direct pin-compatible alternatives within the ISL3159 family such as ISL3159EIBZ or ISL3159EFBZ. Verify if newer generations like the MAX3159 or similar RS-485 controllers offer improved specs while maintaining functional equivalence.