ICL3241CAZ-T

Overview

The ICL3241CAZ-T is a full-duplex RS-232 transceiver manufactured by Renesas Electronics. It integrates three drivers and five receivers within a single SSOP-28 package, supporting data rates up to 250 kb/s. The device operates on a single power supply ranging from 3 V to 5.5 V, with typical operation at 3.3 V or 5 V. It features an internal charge pump for voltage generation and includes a shutdown mode that reduces operating current to approximately 1 mA. The component provides ±15 kV electrostatic discharge protection on RS-232 pins and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrates three independent drivers and five independent receivers for complete serial port functionality.
• Includes manual shutdown control to minimize power consumption in standby states.
• Provides robust ±15 kV ESD protection on all RS-232 input and output pins.

Applications

• Portable computers and laptops requiring low-power serial communication.
• Personal digital assistants (PDAs) and handheld devices.
• Industrial systems utilizing mixed 3.3V and 5.0V logic levels.

Procurement Notes

Verify the specific suffix 'CAZ' against the manufacturer's official documentation to confirm the SSOP-28 package type and tape-and-reel delivery format. Ensure the selected variant matches the required commercial temperature range and RoHS compliance status for your specific manufacturing process.

Selection Notes

Select this component when a full-duplex interface with multiple transmit and receive lines is necessary. It is suitable for designs requiring compatibility with both 3.3V and 5V logic families while maintaining low quiescent current. Verify that the external capacitor values align with the charge pump requirements for the target data rate.

Part Context

This part belongs to the ICL32xxE series of low-power RS-232 transceivers. The series is designed to replace older 5V-only devices, offering pin-compatible upgrades for legacy systems. The ICL3241 variant specifically addresses applications needing three drivers and five receivers, such as standard PC serial ports.

Replacement Considerations

Publicly documented pin-compatible replacements include the MAX3221E and MAX3222E. Verify electrical specifications and package dimensions before substitution to ensure functional equivalence in the target circuit.