ICL3245IA

Overview

The Intersil ICL3245IA is a low-power RS-232 transceiver designed for single-supply operation between 3 V and 5.5 V. It integrates three drivers and five receivers, supporting full-duplex communication at data rates up to 1 Mb/s. The device features enhanced automatic powerdown circuitry that reduces supply current to approximately 1 µA when inputs are unpowered or grounded. It operates within an industrial temperature range of -40°C to +85°C and includes 15 kV ESD protection on all pins. Packaged in SSOP-28, it supports standard RS-232 voltage levels.

Feature Summary

• Enhanced automatic powerdown functionality minimizes power consumption during idle states by reducing quiescent current to microampere levels.
• Integrated charge pump eliminates the need for external dual-voltage supplies, enabling operation from a single 3 V to 5.5 V source.
• High electrostatic discharge (ESD) immunity protects sensitive interfaces against human body model events up to 15 kV.

Applications

• Portable battery-powered equipment requiring extended standby life
• Industrial control systems with harsh electromagnetic environments
• Communication modules needing reliable RS-232 connectivity

Procurement Notes

Verify the specific suffix 'IA' against official Renesas/Intersil documentation to confirm the operating temperature grade and package variant. Ensure compatibility with system voltage rails and interface requirements before procurement. Cross-reference datasheet revisions to confirm pinout consistency.

Selection Notes

Select this component when designing circuits requiring multiple transmit and receive channels within a compact footprint. The ICL3245IA is suitable for applications prioritizing low standby power alongside high noise immunity. Compare driver/receiver counts against alternative models if fewer channels suffice.

Part Context

The ICL3245IA belongs to the ICL3245 series of RS-232 transceivers manufactured by Intersil, now part of Renesas Electronics. This series is characterized by its low-power architecture and robust ESD protection, making it a standard choice for serial communication interfaces in portable and industrial electronics.

Replacement Considerations

The ICL3245EIAZ-T is a verified equivalent offering identical electrical specifications with an extended industrial temperature range (-40°C to +85°C). Verify package compatibility and lead-free status when substituting.