ICL3217EIB

Overview

The Intersil ICL3217EIB is a low-power RS-232 transceiver operating within a supply voltage range of 3.0V to 5.5V. It integrates one driver and three receivers, supporting data rates up to 500 kb/s. The device features automatic powerdown functionality that reduces standby current to 1 µA when no valid RS-232 signal is detected on the receiver inputs. It provides ±15kV ESD protection on RS-232 I/O pins per IEC61000-4-2 standards. Packaged in SOIC-24 for surface mount installation, it operates between -40°C and +85°C.

Feature Summary

• Automatic powerdown circuitry minimizes standby power consumption by detecting idle receiver states.
• Integrated charge pumps enable operation from single 3V or 5V supplies without external components.
• High electrostatic discharge immunity protects RS-232 interface pins against human body and air gap events.

Applications

• ISDN Terminal Adaptors
• Personal Digital Assistants (PDAs) and Palmtops
• Notebook and laptop computers

Procurement Notes

Verify component authenticity through authorized Renesas or Intersil distribution channels. Confirm package marking matches SOIC-24 specifications. Check datasheet revision history for any functional updates. Ensure compliance with export restrictions applicable to US-origin semiconductor products before international transactions.

Selection Notes

Select this component for designs requiring minimal quiescent current in battery-operated portable systems. Verify that the 500 kb/s data rate meets application timing requirements. Ensure system logic levels are compatible with the specified 3V to 5.5V operating range. Confirm PCB layout supports small external capacitor values required for the internal charge pumps.

Part Context

The ICL3217EIB belongs to the ICL32X7E family of low-power RS-232 transceivers. This series was designed as a lower power alternative to legacy devices like the MAX207E. The 'I' suffix typically denotes industrial temperature range performance, while 'B' indicates the SOIC-24 package configuration.

Replacement Considerations

Publicly confirmed direct substitutes include the MAX207E, HIN207E, and HIN237E. These components serve as 5V lower power replacements within the same functional category. Verify pin compatibility and electrical specifications before substitution.