ICL3241EIVZ

Overview

The ICL3241EIVZ is a low-power RS-232 transceiver manufactured by Renesas Electronics, operating on a single 3.0V to 5.5V supply. It integrates three drivers and five receivers, supporting full-duplex communication with data rates up to 250Kbps. The device features an internal charge pump requiring only small external capacitors. It provides ±15kV ESD protection on RS-232 pins and includes a manual shutdown mode that reduces supply current to 1µA. Operating temperatures range from -40°C to +85°C, with a typical quiescent current of 0.3mA.

Feature Summary

• Integrated charge pump enables operation with minimal external capacitance
• Manual shutdown mode significantly reduces power consumption for battery applications
• Robust electrostatic discharge protection on all RS-232 input and output pins

Applications

• Portable computers and laptops requiring serial connectivity
• Personal digital assistants (PDAs) and handheld devices
• Battery-powered systems needing low standby current

Procurement Notes

Verify the suffix IVZ corresponds to the TSSOP-28 package and lead-free RoHS compliance as specified in official datasheets. Confirm manufacturer documentation aligns with the requested part number before procurement. Ensure environmental specifications match operational requirements.

Selection Notes

Select this component when three drivers and five receivers are required within a single IC. It is suitable for systems operating between 3.0V and 5.5V where low power consumption is critical. Verify compatibility with existing TTL/CMOS logic levels and ensure adequate decoupling for the internal charge pump circuitry.

Part Context

This device belongs to the ICL32xxE series of RS-232 transceivers designed for low-voltage operation. The series maintains compatibility with standard RS-232 protocols while offering improved power efficiency compared to traditional 5V-only devices. It serves as a direct replacement for legacy parts in portable electronics designs.

Replacement Considerations

Pin-compatible alternatives include MAX3241E and SP3243E. Verify electrical parameters such as drive strength and ESD ratings against original design specifications when substituting.