ICL3241EIBZ

Overview

The ICL3241EIBZ is a low-power RS-232 transceiver manufactured by Renesas Electronics Corporation, operating within a supply voltage range of 3.0V to 5.5V. It integrates three drivers and five receivers, supporting data rates up to 250Kbps while complying with EIA/TIA-232 and V.28/V.24 standards. The device features ±15kV electrostatic discharge (ESD) protection on both transmitter outputs and receiver inputs. It includes an efficient on-chip charge pump and offers manual and automatic shutdown modes that reduce standby current to 1µA. The component operates across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrated charge pump enables operation from a single 3.0V to 5.5V power supply without external inductors.
• Provides robust ±15kV ESD protection at RS-232 pins, ensuring reliability against air gap and human body model discharges.
• Features automatic shutdown functionality that reduces quiescent current to microampere levels when the cable is disconnected or peripheral is off.

Applications

• Portable computers and laptops requiring full serial port connectivity
• Personal digital assistants (PDAs) and handheld devices
• Industrial control systems with mixed 3.3V and 5.0V logic environments

Procurement Notes

Verify the specific suffix 'IBZ' corresponds to the SOIC-28 package and lead-free RoHS compliance as documented in official datasheets. Confirm the manufacturer source is Renesas Electronics or authorized Intersil legacy documentation. Ensure the part number matches the exact pinout and electrical specifications for your design requirements before procurement.

Selection Notes

Select this component when designing systems requiring multiple transmit and receive lines in a compact surface-mount package. It is suitable for applications needing low standby power through automatic shutdown features. Verify compatibility with system voltages between 3.0V and 5.5V. Consider the 250Kbps data rate limit for high-speed communication needs.

Part Context

This device belongs to the ICL32xE series of low-power RS-232 transceivers designed for portable electronics. The series emphasizes reduced power consumption and small footprint solutions. The ICL3241 variant specifically provides a higher channel count compared to dual-driver models, making it ideal for complex serial interfaces in space-constrained mobile devices.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference material. Verify cross-compatibility with other ICL32xx series variants based on driver/receiver counts and package types.