ICL3243ECB-T

Overview

The ICL3243ECB-T is a full-duplex RS-232 transceiver manufactured by Renesas Electronics Corporation, housed in a 28-pin SSOP package. It integrates three drivers and five receivers, supporting data rates up to 250 kbps while meeting EIA/TIA-232 specifications at supply voltages between 3V and 5.5V. The device features on-chip charge pumps requiring only four external 0.1µF capacitors and includes automatic powerdown functionality that reduces standby current to 1µA. It operates within a commercial temperature range of 0°C to 70°C and provides 15kV ESD protection.

Feature Summary

• Integrates three drivers and five receivers for full-duplex communication
• Features automatic powerdown mode reducing standby current to 1µA
• Includes on-chip voltage converters requiring minimal external capacitance
• Provides 15kV human body model ESD protection

Applications

• Portable devices such as PDAs and palmtops
• Notebook and laptop computers
• Battery-powered systems requiring low standby power

Procurement Notes

Verify the specific suffix 'CB' against official Renesas documentation to confirm the exact package type and tape-and-reel configuration. Ensure the component meets RoHS3 compliance requirements for your target market. Confirm the operating temperature grade matches the commercial specification of 0°C to 70°C before finalizing procurement.

Selection Notes

Select this component when designing systems requiring multiple receiver inputs alongside standard driver outputs. It serves as a drop-in replacement for legacy MAX3243 designs. Consider the 28-pin SSOP footprint for space-constrained layouts. Verify compatibility with 3.3V logic levels if interfacing with modern microcontrollers.

Part Context

This part belongs to the ICL32XX family of low-power RS-232 transceivers originally developed by Intersil and acquired by Renesas. The family is designed for portable applications where power conservation is critical. The ICL3243 variant specifically offers a higher receiver count compared to simpler dual-driver counterparts.

Replacement Considerations

Publicly documented equivalents include the MAX3243 and SP3243. These components offer pin-compatible alternatives for existing designs. Verify electrical parameters and package dimensions before substitution.