ICL3241ECBZ

Overview

The ICL3241ECBZ is a full-duplex RS-232 transceiver manufactured by Renesas Electronics Corporation. It integrates three drivers and five receivers within a single package, supporting data rates up to 250 kbps. The device operates on a single power supply ranging from 3 V to 5.5 V. It features an internal charge pump for voltage generation and includes a shutdown mode that reduces supply current to approximately 1 µA. The component provides ±15 kV electrostatic discharge (ESD) protection on both transmitter outputs and receiver inputs.

Feature Summary

• Integrates three independent drivers and five independent receivers for comprehensive serial communication.
• Includes manual and automatic shutdown modes to minimize power consumption in standby conditions.
• Provides robust ±15 kV ESD protection on all RS-232 pins to enhance reliability.
• Utilizes an efficient on-chip charge pump requiring only small external capacitors.

Applications

• Portable computers and laptops requiring full serial port functionality.
• Personal digital assistants (PDAs) and handheld devices with low power constraints.
• Industrial control systems operating in mixed 3.3V and 5.0V environments.
• Modems and portable instruments utilizing RS-232 interfaces.

Procurement Notes

Verify the specific suffix 'CBZ' against official Renesas documentation to confirm the exact package type and temperature range, as variations exist within the ICL3241 family. Ensure compatibility with RoHS3 standards if required by the target market. Cross-reference the manufacturer part number with authorized distributors to confirm current production status and availability.

Selection Notes

Select this component when a design requires multiple transmit and receive lines in a compact form factor. It is suitable for applications needing low quiescent current and high ESD immunity. Verify that the system voltage falls within the 3 V to 5.5 V range. Consider the pinout compatibility if replacing legacy Intersil or Maxim components in existing designs.

Part Context

This device belongs to the ICL32xE series of RS-232 transceivers designed for low-voltage operation. The series is characterized by its ability to meet EIA/TIA-232 and V.28/V.24 specifications even at 3.0 V supply. The ICL3241 variant specifically offers a 3-driver/5-receiver configuration, distinguishing it from other members like the ICL3232 which has different driver/receiver counts.

Replacement Considerations

Publicly confirmed substitute part numbers include MAX3241EIDW and MAX3241ECAI from Texas Instruments. These alternatives offer similar electrical characteristics and pinouts but require verification of package dimensions and thermal performance before implementation.