ICL3241EIV-T

Overview

The ICL3241EIV-T is a low-power RS-232 transceiver from the ICL32xxE series, manufactured by Renesas Electronics Corporation. It operates on a single 3.0V to 5.5V supply and complies with EIA/TIA-232 and V.28/V.24 standards. The device integrates three drivers and five receivers, supporting full-duplex communication with data rates up to 500kbps. It features ±15kV ESD protection on all RS-232 pins per IEC61000-4-2 standards. The component utilizes an internal charge pump requiring only small external capacitors. It offers manual shutdown functionality, reducing standby current to 1µA. The ICL3241EIV-T is housed in a 28-pin SSOP package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated charge pump enables operation with minimal external capacitance for space-constrained designs.
• Robust electrostatic discharge protection ensures reliability against human body model and air gap events.
• Manual shutdown mode significantly reduces power consumption for battery-operated portable applications.

Applications

• Portable computers and laptops requiring low standby power
• Personal digital assistants (PDAs) and handheld devices
• Industrial control systems with mixed voltage environments

Procurement Notes

Verify the specific suffix 'IV-T' corresponds to the SSOP-28 package and tape-and-reel shipping configuration. Confirm RoHS compliance status and moisture sensitivity level prior to ordering. Ensure the supplier provides valid traceability documentation matching the Renesas part number. Cross-reference datasheet revisions to confirm pinout consistency with existing designs.

Selection Notes

Select this component when designing systems requiring multiple receiver inputs alongside standard driver counts. The 500kbps rate supports high-speed serial communication while maintaining low power efficiency. Verify that external capacitor values align with the charge pump requirements for stable voltage generation at the minimum operating voltage of 3.0V.

Part Context

This part belongs to the ICL32xxE family of low-power RS-232 transceivers designed for 3V to 5.5V systems. It serves as a direct replacement for legacy MAX3221E and MAX3222E devices in many applications. The ICL3241 variant specifically provides a complete serial port solution suitable for notebook computers and portable electronics where power management is critical.

Replacement Considerations

• MAX3241EIDW
• SP3241E

FAQ

What is the maximum data rate guaranteed under worst-case load conditions?

The device guarantees a data rate greater than 250kbps under worst-case load conditions, with typical performance reaching 500kbps or higher at VCC ≥ 3.3V.

How does the manual shutdown feature function?

The shutdown pin allows users to manually disable the internal charge pump and driver circuits, reducing the supply current to approximately 1µA to conserve battery life in portable devices.

Is the ICL3241EIV-T compatible with 3.3V logic systems?

Yes, the device is fully compatible with 3.3V systems, 5.0V systems, and mixed 3.3V/5.0V environments, meeting EIA/TIA-232 specifications even at the lower 3.0V supply limit.