ICL3241CBZ-T

Overview

The ICL3241CBZ-T is a triple line transceiver manufactured by Renesas Electronics Corporation, designed for RS-232 communication interfaces. It operates within a supply voltage range of 3.0 V to 5.5 V and supports data rates up to 250 kbps. The device integrates three drivers and five receivers in a single package, providing full-duplex transmission capabilities. It features ±15 kV electrostatic discharge (ESD) protection on both transmitter outputs and receiver inputs, ensuring robustness against electrical stress. The component is housed in a 28-pin SSOP package and is rated for operation at temperatures between 0°C and +70°C.

Feature Summary

• Integrates three independent drivers and five independent receivers for comprehensive serial port connectivity.
• Provides ±15 kV ESD protection on RS-232 pins to safeguard against human body model and air gap discharges.
• Operates efficiently with low standby current when utilizing the automatic shutdown feature.
• Compatible with 3.3 V and 5.0 V systems without requiring external level shifting.

Applications

• Portable computers and laptops requiring compact serial interface solutions.
• Personal digital assistants (PDAs) and handheld devices with space constraints.
• Industrial control systems needing reliable RS-232 communication links.
• Embedded systems operating in mixed-voltage environments.

Procurement Notes

Verify the specific suffix 'CBZ-T' corresponds to the SSOP-28 package and tape-and-reel delivery format as indicated by distributor listings. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly planning. Ensure the source document explicitly lists this part number variant to avoid confusion with similar ICL3241 models that may differ in package type or temperature range.

Selection Notes

Select this component when a high-density RS-232 solution with integrated ESD protection is required for portable electronics. The inclusion of five receivers allows for complex peripheral connections beyond standard modem signals. Consider the thermal performance within the SSOP-28 package if operating near the upper limit of the specified temperature range. Verify that the 250 kbps data rate meets the system's communication speed requirements.

Part Context

This part belongs to the ICL324xE series of RS-232 transceivers from Renesas/Intersil. These devices are engineered for low-power applications where battery life is critical. The CBZ suffix typically denotes the SSOP-28 plastic package, while the -T suffix indicates reel packaging. This series is widely used in legacy serial port implementations in modern compact devices.

Replacement Considerations

The MAX3243EIDW from Texas Instruments is a documented alternative with similar 3-driver/5-receiver functionality. Verify pin compatibility and voltage specifications before substitution. Other members of the ICL324x family may offer different driver/receiver counts or package options.