ICL3232EIB-T

Overview

The ICL3232EIB-T is an RS-232 transceiver manufactured by Renesas Electronics Corporation, formerly Intersil. It features two drivers and two receivers designed for single-supply operation at 3V to 5.5V. The device incorporates dual charge pumps requiring only four small external capacitors. It provides enhanced electrostatic discharge protection rated at ±15kV via the human body model. The component supports data rates up to 250kbps and operates within a temperature range of -40°C to +85°C. It is housed in a 16-pin SOIC package.

Feature Summary

• Dual charge pump architecture enables reliable RS-232 performance from a single low-voltage supply using minimal external components.
• Integrated high-level ESD protection safeguards transmitter outputs and receiver inputs against static discharge events.
• Fail-safe receiver circuitry ensures a logic-high input state when inputs are left unconnected.

Applications

• Portable battery-powered equipment requiring low power consumption
• Industrial automation systems with noisy electrical environments
• Point-of-sale terminals and hand-held devices

Procurement Notes

Verify the specific suffix 'T' corresponds to tape-and-reel packaging requirements for automated assembly lines. Confirm that the manufacturer designation aligns with current Renesas Electronics documentation rather than legacy Intersil records. Ensure the operating voltage range matches the target system's power supply specifications before integration.

Selection Notes

Select this component for applications requiring bidirectional serial communication over short distances. It is suitable for systems needing robust noise immunity and ESD resilience. Verify compatibility with existing microcontroller logic levels. Consider the package size constraints relative to available board space for the required decoupling capacitors.

Part Context

This part belongs to the ICL3232 family of RS-232 interface integrated circuits. It serves as a bridge between microprocessor data lines and standard RS-232 connectors. The device simplifies design by integrating level shifting and inversion functions on a single chip, reducing the component count compared to discrete solutions.

Replacement Considerations

The UM3232E series offers pin and functional compatibility. Other industry-standard equivalents include the MAX232 family. Verify electrical parameters and package dimensions match before substitution.