ICL3245ECB-T

Overview

The ICL3245ECB-T is a low-power RS-232 transceiver manufactured by Intersil, operating within a supply voltage range of +3V to +5.5V. It features three drivers and five receivers, supporting full-duplex communication at data rates up to 1 Mbps. The device incorporates enhanced automatic powerdown functionality, reducing the operating supply current to approximately 1 mA. It provides ±15 kV electrostatic discharge (ESD) protection on all RS-232 lines, ensuring robustness in harsh environments. The component is housed in a compact SSOP-28 package, suitable for surface-mount applications.

Feature Summary

• Enhanced automatic powerdown circuitry significantly reduces standby power consumption when no valid signal is detected.
• Integrated charge pumps enable reliable operation from a single +3V to +5.5V power supply without external components.
• Robust ±15 kV ESD protection on RS-232 I/O pins meets stringent industrial safety standards.

Applications

• Portable computing devices such as PDAs and palmtops requiring low standby current.
• Industrial control systems utilizing RS-232 communication protocols.
• Battery-powered peripherals where power efficiency is critical.

Procurement Notes

Verify the specific suffix 'CB' against official Renesas/Intersil documentation to confirm temperature grade and packaging details. Ensure compatibility with existing PCB footprints for the SSOP-28 package. Confirm RoHS compliance status if required for your manufacturing process. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a combination of three drivers and five receivers is required for complex RS-232 interfaces. It is appropriate for designs needing low quiescent current and high ESD immunity. Consider the SSOP-28 package size constraints during layout. Verify that the 1 Mbps data rate meets the system's communication speed requirements.

Part Context

This part belongs to the ICL32XXE family of low-power RS-232 transceivers. It shares architectural similarities with other members like the ICL3245EIAZ-T but differs in driver/receiver counts and package options. The 'E' designation typically indicates an extended temperature range compared to commercial variants.

Replacement Considerations

Direct substitutes include other ICL3245 variants with matching pinouts and electrical characteristics. Check for equivalent packages such as SSOP-28 or SOIC-28 depending on board space. Ensure replacement parts maintain the same 15 kV ESD protection level and 1 Mbps data rate capability.