ICL3244IA-T

Overview

The ICL3244IA-T is a triple line transceiver manufactured by Renesas Electronics Corporation, designed for EIA/TIA-232 and V.24/V.28 communication interfaces. It integrates three drivers and three receivers within a single package. The device operates with a supply voltage range of 3V to 5.5V and supports data rates up to 120 kbps. It utilizes external capacitors for charge pump functionality to generate the required RS-232 voltage levels. The component is housed in a PDSO28 plastic package and is rated for an operating temperature range from 0°C to 70°C.

Feature Summary

• Integrates three independent drivers and three receivers for full duplex communication
• Operates directly from a single 3V to 5.5V power supply
• Includes internal discharge circuits on receivers to prevent false triggering during power-down
• Compatible with standard RS-232 interface specifications

Applications

• Portable computers and notebook systems
• Battery-powered handheld equipment
• Industrial control systems requiring serial communication
• Modems and peripheral interface connections

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging configuration when sourcing. Confirm the 'IA' designation aligns with the required commercial temperature grade of 0°C to 70°C. Ensure the manufacturer source is identified as Renesas or its authorized predecessors such as Intersil to guarantee component authenticity and datasheet accuracy.

Selection Notes

Select this component when a design requires three independent serial channels within a compact footprint. It is suitable for applications needing low standby current and operation from a single low-voltage supply. Compare pin compatibility with other FCT or standard RS-232 transceivers if replacing existing designs. Verify that the external capacitor requirements fit within the available board space constraints.

Part Context

This part belongs to the ICL324x family of RS-232 transceivers, which are widely used in legacy and modern serial communication interfaces. The ICL series was originally developed by Intersil before being acquired by Renesas Electronics. These devices are characterized by their ability to operate at lower voltages than traditional RS-232 chips while maintaining standard output swing levels.

Replacement Considerations

Direct pin-compatible substitutes include the MAX3243 and MAX3244 from Maxim Integrated. Other alternatives may include the SP3243 from Sipex. Verify that any replacement maintains the same package type (PDSO28) and electrical characteristics, particularly the supply voltage range and data rate capabilities.