ICL3245EIA-T

Overview

The ICL3245EIA-T is a low-power RS-232 transceiver manufactured by Renesas Electronics Corporation, housed in an SSOP-28 surface-mount package. It operates on a single power supply ranging from 3 V to 5.5 V and supports data rates up to 1 Mb/s. The device integrates three drivers and five receivers for full-duplex communication. It features enhanced automatic powerdown functionality that reduces standby current to approximately 1 mA. The component provides 15 kV electrostatic discharge protection on RS-232 pins and complies with EIA/TIA-232 and V.28/V.24 specifications.

Feature Summary

• Integrated charge pumps enable operation from a single 3 V to 5.5 V supply without external voltage inversion components.
• Automatic powerdown circuitry activates when the interface cable is disconnected or peripheral devices are powered off, significantly reducing standby power consumption.
• High electrostatic discharge tolerance protects sensitive RS-232 input and output pins against human body and machine model events.

Applications

• Portable computing systems such as PDAs and palmtops requiring low standby current
• Laptop and notebook computer serial port implementations
• ISDN terminal adaptors and peripheral interfaces

Procurement Notes

Verify the specific suffix designation to confirm the reel packaging configuration and moisture sensitivity level prior to ordering. Ensure the procurement source provides traceability documentation consistent with Renesas Electronics standards. Confirm RoHS compliance status matches the project requirements, as manufacturing origins may vary between Intersil and Rochester Electronics sources.

Selection Notes

Select this component when a full-duplex RS-232 interface with five receiver inputs is required alongside three driver outputs. The 1 Mb/s data rate capability distinguishes it from lower-speed variants like the ICL3243. Verify that the SSOP-28 footprint aligns with the PCB layout constraints and that the 3 V to 5.5 V operating range matches the system power rails.

Part Context

This part belongs to the ICL3245E family of 3V RS-232 transceivers designed for battery-powered applications. It serves as a direct replacement for legacy 5V-only RS-232 drivers while maintaining compatibility with standard RS-232 signaling levels. The device is part of a broader portfolio including similar pin-compatible variants with different driver/receiver counts.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires verification of electrical parameters and pinout compatibility with original equipment manufacturer specifications.