ICL3238ECA-T

Overview

The Intersil ICL3238ECA-T is a low-power RS-232 transceiver designed for operation with single +3V to +5.5V power supplies. It integrates five drivers and three receivers, providing full-duplex communication capabilities compliant with EIA/TIA-232 and V.24/V.28 standards. The device features an automatic powerdown function that reduces standby supply current to approximately 1µA when the interface is idle. It includes on-chip charge pumps requiring only four small external capacitors. The component offers ±15kV electrostatic discharge (ESD) protection on RS-232 lines and supports data rates up to 250kbps.

Feature Summary

• Integrates five drivers and three receivers for full-duplex RS-232 communication
• Features automatic powerdown circuitry to minimize standby power consumption
• Provides robust ±15kV ESD protection on all RS-232 input and output pins
• Operates from a single +3V to +5.5V supply voltage

Applications

• Portable computers and notebook systems
• Battery-powered handheld devices and PDAs
• Industrial control systems requiring low power interfaces
• Peripherals connected via serial communication ports

Procurement Notes

Verify the specific suffix 'ECA-T' against official Renesas/Intersil documentation to confirm tape-and-reel packaging and temperature range specifications. Ensure compatibility with existing board layouts regarding capacitor placement and pin assignments before procurement.

Selection Notes

Select this component for designs requiring five drivers and three receivers in a compact form factor. It is suitable for applications where power conservation is critical due to its low standby current. Verify that the required data rate does not exceed 250kbps and that the system operates within the specified voltage range.

Part Context

This part belongs to the ICL32XXE family of low-power RS-232 transceivers. It shares functional similarities with other members like the ICL3232 and ICL3237 but differs in the number of integrated drivers and receivers. The family is characterized by CMOS technology and single-supply operation.

Replacement Considerations

Direct substitutes include the ICL3238EIAZ or ICL3238EIZ for equivalent functionality in different package types. Cross-reference with MAX3238 or SP3238EEA for pin-compatible alternatives from other manufacturers.