ISL1541IRZ

Overview

The ISL1541IRZ is a dual RS-232 transceiver manufactured by Intersil, designed for full-duplex data communication. It integrates two drivers and two receivers within a single package. The device operates from a single +5V power supply and supports data rates up to 120 kbps. It features low quiescent current consumption and includes ESD protection rated at ±15 kV on the driver outputs. The component is housed in a 16-pin TSSOP surface-mount package and is specified for an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual independent drivers and receivers for full-duplex RS-232 communication
• Provides robust electrostatic discharge protection on driver output pins
• Operates efficiently from a single +5V supply with low power consumption
• Supports standard TTL/CMOS logic levels for direct microcontroller interfacing

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment due to low quiescent current
• Data acquisition modules utilizing RS-232 interfaces
• Embedded systems connecting to modems or peripheral devices

Procurement Notes

Verify the specific manufacturer revision and date code upon ordering, as Intersil products are now managed under Renesas Electronics. Confirm that the 'IRZ' suffix denotes the lead-free RoHS-compliant version in the TSSOP-16 package. Check for any product change notifications regarding manufacturing site transfers or packaging format adjustments before finalizing procurement contracts.

Selection Notes

Select this component when designing circuits that require dual-channel RS-232 connectivity without external charge pumps. Ensure the application environment stays within the specified industrial temperature limits. Verify that the required data rate does not exceed 120 kbps. Consider the physical footprint constraints of the TSSOP-16 package during PCB layout planning.

Part Context

This part belongs to the ISL154x series of RS-232 transceivers, which are characterized by their ability to operate from a single voltage source. The series is widely used in legacy interface designs where space efficiency and low power are critical. The ISL1541 specifically provides the dual-driver configuration needed for complex serial bus topologies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate generic RS-232 transceivers with similar pinouts and electrical specifications if direct replacements are required.