ICL3227ECA-T

Overview

The Intersil ICL3227ECA-T is a single RS-232 line transceiver designed for low-power applications. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 1 Mb/s. The device features full-duplex communication with one driver and one receiver. It includes an automatic powerdown function that reduces standby current to approximately 1 µA when the bus is idle. The component provides ±15 kV ESD protection on RS-232 I/O pins and meets EIA/TIA-232 specifications. It is housed in a 16-pin SSOP package suitable for surface mount installation.

Feature Summary

• Automatic powerdown circuitry minimizes standby power consumption during periods of inactivity
• Integrated charge pumps enable operation from a single 3 V to 5.5 V supply without external inductors
• Robust electrostatic discharge protection rated at ±15 kV on all RS-232 signal lines

Applications

• Portable computers and notebook systems requiring low standby current
• Personal digital assistants (PDAs) and handheld devices
• Battery-powered peripherals and ISDN terminal adaptors

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm pinout compatibility and temperature grade. Confirm RoHS compliance status through official datasheets or certificates of conformity prior to integration. Ensure the supplier provides traceable origin records for quality assurance purposes.

Selection Notes

Select this component for designs requiring minimal quiescent current in battery-operated environments. Verify that the required data rate does not exceed 1 Mb/s under the intended operating voltage conditions. Ensure the system architecture accommodates the external capacitor requirements typical for charge pump circuits.

Part Context

This part belongs to the ICL32X7E family of low-power RS-232 transceivers manufactured by Intersil, now part of Renesas Electronics. The family shares common architectural features such as automatic powerdown and high ESD tolerance. The ICL3227ECA-T specifically offers single-driver capability compared to multi-driver variants in the same series.

Replacement Considerations

The MAX207E is identified as a comparable legacy device. Verify electrical parameter alignment and pin compatibility before substitution. Check for any differences in capacitor sizing requirements or shutdown logic between the Intersil and Analog Devices versions.