ISL3243EIRZ-T

Overview

The ISL3243EIRZ-T is a single driver and five receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 2.7V to 3.6V and supports data rates up to 250kbps. The device features integrated 15kV ESD protection on all pins, ensuring robust performance in harsh environments. It is housed in a QFN-EP-32 package suitable for surface mount applications. The component functions as a full-duplex transceiver with an operating temperature range from -40°C to +85°C and consumes a typical operating current of 1.5mA.

Feature Summary

• Integrates 15kV electrostatic discharge (ESD) protection on all RS-232 signal pins to enhance system reliability.
• Features automatic power-down mode to minimize power consumption during idle periods.
• Supports full-duplex communication compliant with TIA/EIA-232-F standards.

Applications

• Portable battery-powered equipment requiring low power consumption
• Industrial control systems needing high ESD immunity
• Communication modules in embedded devices

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the manufacturer part number matches exactly to ensure compatibility with the QFN-EP-32 package. Check for RoHS compliance status if required by project specifications. Ensure the voltage supply constraints are strictly adhered to during design validation.

Selection Notes

Select this component for designs requiring a single-supply RS-232 interface with strict power limitations. The 2.7V minimum supply voltage makes it suitable for single-cell lithium battery applications. Consider the 32-pin QFN footprint for PCB layout constraints. Verify that the 250kbps data rate meets the application's throughput requirements.

Part Context

This part belongs to the ISL3243E series of RS-232 transceivers designed for low-voltage operation. It is distinct from higher-voltage variants and offers enhanced ESD protection compared to standard industry counterparts. The product line focuses on portable electronics where power efficiency and pin count are critical design factors.

Replacement Considerations

Direct substitutes must support 2.7V-3.6V operation and 15kV ESD protection. Verify pinout compatibility with the QFN-EP-32 package before replacement. Ensure the alternative device maintains full-duplex functionality and TIA/EIA-232-F compliance.