ICL7621ACPAR2207

Overview

The ICL7621ACPAR2207 is a triple line transceiver manufactured by Harris Corporation, designed for RS-232 communication applications. It integrates five drivers and three receivers within a single CMOS package. The device operates on a single power supply ranging from +3V to +5.5V, eliminating the need for external negative voltage generation typically required by standard RS-232 interfaces. It supports data transmission rates up to 250kbps and features Schmitt trigger inputs on the receivers to improve noise immunity. The component is housed in a 24-pin Plastic Dual Small Outline (SOIC) package compliant with MS-013AD standards.

Feature Summary

• Integrates five drivers and three receivers for comprehensive serial communication control
• Operates on a single positive power supply without requiring external charge pumps
• Features Schmitt trigger inputs on receivers to enhance signal integrity and noise rejection
• Supports high-speed data transmission up to 250kbps

Applications

• Industrial equipment serial port interfacing
• Computer peripheral connections
• Modem interface circuits
• Point-of-sale systems

Procurement Notes

Verify the manufacturer designation as Harris Corporation against current Renesas Electronics records, as Intersil was acquired by Renesas. Confirm the specific suffix 'P2207' corresponds to the intended packaging and tape-and-reel configuration. Ensure the RoHS compliance status matches the lead-free specification indicated in the PDSO24 description. Cross-reference the datasheet version to confirm operating temperature ranges and electrical characteristics align with system requirements.

Selection Notes

Select this component when a triple driver and triple receiver configuration is required for RS-232 links. It is suitable for designs needing a single-supply operation between 3V and 5.5V. Consider the 250kbps speed limit for bandwidth requirements. The SOIC-24 package is appropriate for surface-mount assembly processes. Verify that the Schmitt trigger input characteristic meets the noise environment of the application.

Part Context

This part belongs to the ICL7621 series of low-power RS-232 transceivers. These devices are widely used in legacy and industrial systems requiring reliable serial communication. The transition from Intersil to Renesas Electronics affects documentation sources but not the core functionality. The component serves as a bridge between TTL/CMOS logic levels and RS-232 voltage levels.

Replacement Considerations

Direct substitutes include the ICL3207CBZ and MAX3207EIA. Verify pin compatibility and electrical specifications before substitution. Check if alternative packages such as SSOP are available from other manufacturers.