ICL3243IA

Overview

The ICL3243IA is an RS-232 interface integrated circuit manufactured by Renesas Electronics Corporation, belonging to the ICL3243 series. It functions as a single-driver and five-receiver transceiver designed for full-duplex communication. The device supports data rates up to 500 kb/s and operates within a supply voltage range of 3 V to 5.5 V, accommodating both 3.3 V and 5 V logic systems. It is housed in an SSOP-28 package suitable for surface mount installation. The component features low power consumption with a typical operating current of 1 mA and includes built-in ESD protection. It is rated for an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates one driver and five receivers for asymmetric RS-232 communication requirements
• Supports high-speed data transmission up to 500 kb/s
• Operates on a single 3 V to 5.5 V power supply
• Includes automatic power-down mode for reduced standby current

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered equipment due to low power consumption
• Modems and fax machines utilizing RS-232 standards
• Point-of-sale terminals and barcode scanners

Procurement Notes

Verify the specific suffix 'IA' against official Renesas documentation to confirm the industrial temperature grade and package type. Confirm availability status as distributors may list this part as obsolete or end-of-life. Ensure moisture sensitivity level handling procedures are followed during assembly. Cross-reference the manufacturer part number with authorized channel listings to avoid counterfeit components.

Selection Notes

Select this component when a design requires multiple receive lines but only a single transmit line. Compare performance against the ICL3243CBZ if a SOIC package or commercial temperature range is acceptable. Verify that the 500 kb/s speed meets system timing requirements. Ensure the SSOP-28 footprint matches the PCB layout constraints.

Part Context

The ICL3243IA is part of the broader ICL3243 family of RS-232 transceivers. This series typically includes variants with different package options such as SOIC and TSSOP, and varying temperature grades. The IA suffix specifically denotes the industrial temperature range and SSOP packaging, distinguishing it from commercial grade alternatives like the CBZ variant.

Replacement Considerations

Publicly confirmed substitute part numbers for the ICL3243IA are not available in the provided source material.