ICL3232ECA

Overview

The Intersil ICL3232ECA is a dual transmitter and dual receiver RS-232 line transceiver designed for low-power applications. It operates from a single power supply ranging from 3V to 5.5V, ensuring compatibility with 3.3V and 5V systems. The device meets EIA/TIA-232 and V.28/V.24 specifications at the minimum voltage of 3.0V. It features on-chip charge pumps requiring only four external 0.1µF capacitors. The component supports data rates up to 250kbps and includes latch-up protection. It is housed in a 16-pin SSOP package.

Feature Summary

• Low standby current consumption suitable for battery-powered devices
• Integrated charge pump reduces external component count
• Full compliance with RS-232 standards at 3V operation
• Latch-up free design ensures robust performance

Applications

• Personal Digital Assistants (PDAs)
• Palmtop computers
• Notebook and laptop computers
• Portable peripherals

Procurement Notes

Verify the specific suffix 'ECA' against the manufacturer's official ordering guide to confirm the package type and temperature range. Ensure the source document explicitly identifies the part as an Intersil product rather than a generic distributor listing. Confirm RoHS compliance status if required by the project specifications.

Selection Notes

Select this component when a drop-in replacement for older 5V RS-232 transceivers is needed in space-constrained designs. It serves as a low-power upgrade for legacy parts like the HIN232. Verify that the application requires only two drivers and two receivers, as other pin counts may necessitate different family members.

Part Context

This device belongs to the Intersil ICL32XX series of RS-232 transceivers. The family is characterized by low power consumption and small footprint packaging. These components are engineered to replace standard 5V RS-232 drivers while supporting modern 3.3V logic levels without additional level shifting circuitry.

Replacement Considerations

Public documentation lists the ICL3232 as a low-power upgrade for HIN232/ICL232. It is also noted as a drop-in replacement for competitor devices such as the MAX232. Verify pin compatibility before substitution.