ICL3232CA

Overview

The ICL3232CA is a triple line transceiver manufactured by Intersil, designed for RS-232 communication applications. It operates within a supply voltage range of 3V to 5.5V and supports data rates up to 250kbps. The device features three drivers and three receivers, utilizing Schmitt trigger inputs for noise immunity. It is housed in a 28-pin PDSO package with an operating temperature range from 0°C to 70°C. The component meets EIA/TIA-232 and V.24/V.28 specifications at 3V operation.

Feature Summary

• Triple driver and receiver configuration for multi-channel serial communication
• Low power consumption with 1µA standby current capability
• Integrated on-chip charge pumps requiring only four external capacitors
• Robust protection against electrostatic discharge events

Applications

• Personal Digital Assistants (PDAs) and Palmtops
• Notebook and laptop computer peripheral interfaces
• Industrial control systems requiring RS-232 connectivity

Procurement Notes

Verify the specific suffix 'CA' against official Intersil or Renesas documentation to confirm package type and temperature grade. Ensure compliance with RoHS directives if required for the target market. Cross-reference ordering information with authorized distributors to validate active status and availability constraints.

Selection Notes

Select this component when a triple channel RS-232 interface is required for low-power portable devices. It serves as a drop-in replacement for legacy MAX3232 designs. Consider the 28-pin SSOP/PDSO footprint for board space optimization. Verify that the 250kbps data rate meets system timing requirements.

Part Context

The ICL3232 belongs to the Intersil ICL32XX family of low-power RS-232 transceivers. This series was engineered to replace older 5V-only devices with efficient 3V-compatible alternatives. The family utilizes on-chip voltage converters to minimize external component count, facilitating compact design solutions for mobile electronics.

Replacement Considerations

Publicly confirmed pin-compatible replacements include the MAX3232 and HIN232. The ICL3232 is explicitly documented as a low-power upgrade for these competitor devices. Verify electrical parameters match before substitution.