ICL3310IB

Overview

The Intersil ICL3310IB is a dual RS-232 transceiver designed for single-supply operation. It integrates on-board charge pumps to generate the required positive and negative voltages from a single 3V to 5.5V supply, eliminating the need for external split supplies. The device supports data rates up to 120kbps and features ±15kV ESD protection on all bus pins. It operates within a temperature range of -40°C to +85°C and is available in a 16-pin SOIC package.

Feature Summary

• Integrated charge pump circuitry generates compliant RS-232 voltage levels from a single power supply
• Provides robust ±15kV electrostatic discharge (ESD) protection on transmit and receive lines
• Supports full failsafe receiver operation to ensure a high logic state during idle or fault conditions

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment with limited power supply options
• Computer peripherals and modems utilizing standard RS-232 interfaces

Procurement Notes

Verify the specific suffix 'IB' corresponds to the industrial temperature grade (-40°C to +85°C) and SOIC-16 package configuration. Confirm RoHS compliance status as manufacturing processes may vary by production batch. Ensure the source document explicitly lists the ICL3310IB part number rather than generic family members like ICL3232 or ICL3243 to avoid pinout mismatches.

Selection Notes

Select this component when designing systems that require isolated RS-232 signaling without complex external power generation circuits. It is suitable for applications where board space is constrained but high ESD immunity is critical. Compare against newer generations such as the ISL3310 for potential improvements in current consumption or additional protocol support if system requirements evolve.

Part Context

This device belongs to the legacy Intersil RS-232 transceiver family, which has been integrated into Renesas Electronics' portfolio following the acquisition. These components are widely recognized for their compatibility with standard EIA/TIA-232-F specifications and their ability to interface microcontrollers with legacy serial ports in embedded environments.

Replacement Considerations

Direct functional substitutes include the ICL3232 and ICL3243 series, which share similar pinouts and electrical characteristics. Newer equivalents such as the ISL3310 offer improved performance metrics while maintaining backward compatibility.