ICL3217ECA

Overview

The ICL3217ECA is an RS-232 transceiver manufactured by Renesas Electronics Corporation, formerly Intersil. It operates on a single power supply ranging from 3V to 5.5V and supports data rates up to 500 kb/s. The device integrates one driver and three receivers in a SOIC-24 package. It features low power consumption with a typical operating current of 1 mA and standby current reduced to 1 µA via automatic powerdown. The component includes ESD protection rated at ±15 kV for both air gap and human body models. It meets EIA/TIA-232 and V.28/V.24 specifications even at the minimum 3.0V supply voltage.

Feature Summary

• Automatic powerdown circuit reduces standby supply current to 1 µA when no valid RS-232 voltage is present on receiver inputs.
• Integrated on-chip charge pumps enable operation with small external capacitors, reducing board space requirements.
• Provides ±15 kV ESD protection on RS-232 I/O pins compliant with IEC61000-4-2 standards.

Applications

• ISDN Terminal Adaptors
• PDAs and Palmtops
• Notebook and laptop computers

Procurement Notes

Verify the specific suffix 'ECA' against official Renesas documentation, as standard listings often reference 'EIB' or 'EIA'. Confirm availability status, as this series may be discontinued or restricted. Check for export restrictions if applicable. Ensure the ordering code matches the exact package and temperature grade required for the design.

Selection Notes

Select this component for designs requiring low power consumption in portable devices. It serves as a lower power replacement for older MAX207E or HIN207E equivalents. Verify that the 500 kb/s data rate meets system requirements. Ensure the SOIC-24 package fits the PCB layout constraints. Confirm compatibility with 3.3V and 5V mixed systems.

Part Context

The ICL3217E belongs to the ICL32X7E family of RS-232 transceivers designed for 3V to 5.5V operation. This family emphasizes low power and high ESD protection for mobile applications. The ICL3217E variant specifically offers one driver and three receivers, distinguishing it from other members like the ICL3207E which has five drivers.

Replacement Considerations

Publicly confirmed direct substitutes include MAX207E, HIN207E, and HIN237E. These are cited as higher power predecessors that the ICL3217E replaces. Verify pinout compatibility and electrical specifications before substitution.