ICL3244ECA-T

Overview

The ICL3244ECA-T 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 enhanced automatic powerdown circuitry that reduces supply current to approximately 1 µA during shutdown. The component includes internal charge pumps for generating positive and negative voltages from the single supply. It provides ESD protection of 15 kV according to specific industry standards.

Feature Summary

• Integrates three independent drivers and five independent receivers for full-duplex communication
• Features enhanced automatic powerdown mode to minimize power consumption in idle states
• Provides robust electrostatic discharge protection on all RS-232 signal pins
• Utilizes internal charge pump circuitry to eliminate the need for external capacitors

Applications

• Industrial control systems requiring reliable serial communication
• Modem interfaces in embedded computing devices
• Point-of-sale terminals and barcode scanners
• Medical equipment with serial data transmission requirements

Procurement Notes

Verify the exact suffix against official Renesas documentation to confirm temperature range and packaging specifications. Ensure the procurement channel provides valid traceability for industrial components. Confirm RoHS compliance status matches the specific manufacturing batch requirements for your assembly process.

Selection Notes

Select this component when three drivers and five receivers are required for RS-232 applications. It is suitable for designs operating between 3 V and 5.5 V. Consider the 28-pin SSOP package constraints for PCB layout. Verify that the 250 kbps speed meets the system timing requirements compared to higher-speed alternatives.

Part Context

This part belongs to the ICL324x series of RS-232 transceivers. It shares architectural similarities with the ICL3243 and ICL3245 but differs in driver and receiver counts. The series is designed for low-power applications requiring high noise immunity and integrated voltage generation without external boost components.

Replacement Considerations

Publicly confirmed substitutes include the ICL3244EIAZ for tube packaging variants. Cross-reference pinouts and electrical characteristics carefully before substitution. Verify that alternative packages maintain compatibility with existing footprint designs.