ICL3241EIVZ-T

Overview

The ICL3241EIVZ-T is a full-duplex 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, ensuring compliance with EIA/TIA-232 and V.28/V.24 standards even at the minimum 3.0V supply level. The device supports data rates exceeding 250kbps under worst-case load conditions and features an internal charge pump requiring only four small external capacitors. It provides ±15kV electrostatic discharge protection on both transmitter outputs and receiver inputs per IEC61000-4-2 specifications. The component operates across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated automatic power-down functionality that reduces standby current to microampere levels when peripherals are inactive or cables are disconnected.
• Includes noninverting always-active receivers designed specifically for system wake-up capabilities from low-power states.
• Utilizes efficient on-chip charge pumps to generate required RS-232 voltages using minimal external capacitance.

Applications

• Portable computers and notebook systems requiring complete serial port interfaces
• Personal digital assistants (PDAs) and handheld devices prioritizing low power consumption
• Mixed 3.3V and 5.0V system environments

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging configuration distinct from tube variants. Confirm RoHS compliance status and specific manufacturing lot dates against current Renesas documentation. Ensure the ordering part number matches the exact electrical grade and package type required for the design.

Selection Notes

Select this component for designs requiring five receiver inputs alongside three drivers in a compact form factor. It is suitable for applications needing automatic power management without hardware modifications. Verify compatibility with existing charge pump capacitor values and ensure the TSSOP-28 footprint fits the board layout constraints.

Part Context

This device belongs to the Intersil ICL32xE series, now managed by Renesas Electronics following corporate acquisitions. The series targets portable electronics where power efficiency and space savings are critical. The ICL3241 variant specifically addresses the need for comprehensive serial communication ports in mobile computing platforms.

Replacement Considerations

The MAX3241EWI serves as a functional equivalent offering similar driver/receiver counts and voltage ranges. Verify pin-to-pin compatibility and check if the alternative requires different external capacitor configurations or offers distinct power-down control mechanisms.