ICL3244ECV

Overview

The ICL3244ECV is a low-power RS-232 transceiver manufactured by Intersil, designed for operation with supply voltages ranging from 3.0 V to 5.5 V. It features one driver and two receivers, supporting data rates up to 1 Mbps. The device incorporates enhanced automatic powerdown circuitry that reduces standby supply current to approximately 1 µA when the receiver inputs are idle. It provides ±15 kV electrostatic discharge (ESD) protection on all RS-232 lines, ensuring robustness in portable applications. The component is housed in a 16-pin TSSOP package.

Feature Summary

• Enhanced automatic powerdown function significantly reduces standby power consumption
• Integrated charge pumps enable single-supply operation without external inductors
• High ESD protection rating of ±15 kV on RS-232 I/O pins
• Compliance with EIA/TIA-232 and V.28/V.24 specifications at 3 V

Applications

• Portable computers and notebook systems requiring low standby power
• Personal digital assistants (PDAs) and palmtop devices
• Battery-powered industrial equipment with serial communication interfaces
• ISDN terminal adaptors and peripheral connections

Procurement Notes

Verify the specific suffix 'ECV' against official Intersil or Renesas documentation to confirm the exact temperature range and packaging type. Ensure compatibility with existing board layouts regarding the 16-pin TSSOP footprint and capacitor requirements. Confirm RoHS compliance status if required for the target assembly process.

Selection Notes

Select this component when a single driver and dual receiver configuration is sufficient for the system design. It is suitable for applications prioritizing low power consumption in both active and standby modes. Consider the 1 Mbps data rate limit and the 3 V to 5.5 V operating voltage range during system architecture planning.

Part Context

This part belongs to the ICL32XXE family of RS-232 transceivers, which are characterized by their low power consumption and high ESD protection capabilities. The family includes variants with different numbers of drivers and receivers, such as the ICL3225E and ICL3245E, sharing similar core technologies like automatic powerdown and internal charge pumps.

Replacement Considerations

Direct replacements within the same family include the ICL3244EI (industrial temperature range) or ICL3244EBI. Cross-manufacturer equivalents should be verified for pin compatibility and electrical characteristics matching the 3 V to 5.5 V supply range.