ICL3241IA-T

Overview

The ICL3241IA-T is an RS-232 transceiver manufactured by Renesas Electronics, designed for low-power serial communication applications. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device integrates one driver and five receivers, housed in an SSOP-28 surface-mount package. It features 15 kV electrostatic discharge (ESD) protection on the RS-232 lines and draws only 1 mA of operating current. The component functions reliably across a temperature range of -40 °C to +85 °C, making it suitable for industrial and commercial environments requiring robust serial interface capabilities.

Feature Summary

• Integrated charge pump circuitry enabling operation from single 3 V to 5.5 V power supplies without external dual-voltage requirements.
• Enhanced ESD protection rated at 15 kV on RS-232 lines to safeguard connected equipment against static discharge events.
• Low standby current consumption achieved through automatic power-down functionality when no valid signal is present on the inputs.

Applications

• Portable computing devices such as PDAs and notebook computers requiring compact serial ports.
• Industrial control systems utilizing RS-232 communication protocols in electrically noisy environments.
• Embedded systems with strict power budget constraints needing efficient sleep modes.

Procurement Notes

Verify the specific suffix 'IA' against official Renesas documentation to confirm the exact temperature grade and packaging variant. Ensure compatibility with existing board layouts using the SSOP-28 footprint. Check moisture sensitivity levels before reflow soldering to prevent package damage during assembly processes.

Selection Notes

Select this component when designing systems that require multiple receiver inputs alongside a single driver output. Compare performance metrics against similar models like the ICL3243 if different driver/receiver configurations are needed. Confirm that the 500 kb/s data rate meets the system's timing requirements for reliable serial data transmission.

Part Context

This part belongs to the ICL324x family of RS-232 transceivers, which are optimized for low-power portable electronics. The family shares common architectural features such as internal charge pumps and automatic power-down mechanisms. Variants within the series differ primarily in the number of drivers and receivers provided to suit specific interface needs.

Replacement Considerations

The ICL3241CBZ serves as a direct functional substitute within the same product family. Verify pinout compatibility and ensure the replacement part meets the required operating temperature range for the specific application environment.