ICL3223EIV

Overview

The ICL3223EIV is a dual driver, dual receiver RS-232 transceiver from the ICL32xxE series manufactured by Intersil. It operates on a single 3V to 5.5V supply and supports full-duplex communication at data rates up to 250 kb/s. The device features an internal charge pump requiring only four small external capacitors. It provides ±15kV ESD protection on RS-232 pins and includes an automatic shutdown mode that reduces power consumption to 1µA. The component is housed in a TSSOP-20 package and is rated for industrial operating temperatures ranging from -40°C to +85°C.

Feature Summary

• Integrated charge pump with automatic shutdown capability for ultra-low standby current
• Robust electrostatic discharge protection on all RS-232 signal lines
• Direct compatibility with TTL and CMOS logic levels without level shifting

Applications

• Industrial serial communication interfaces
• Portable battery-powered equipment requiring low power consumption
• Laptop and notebook computer serial ports

Procurement Notes

Verify the specific suffix 'EIV' against official Renesas or Intersil documentation to confirm the exact temperature grade and packaging configuration. Cross-reference the manufacturer part number with current datasheets to ensure the component status and availability align with project requirements before procurement.

Selection Notes

Select this component when designing systems requiring RS-232 connectivity with strict power constraints. Ensure the design accommodates the required external capacitors for the charge pump. Verify that the TSSOP-20 package fits the PCB layout and that the industrial temperature range meets the environmental specifications of the target application.

Part Context

This device belongs to the ICL32xxE family of low-power RS-232 transceivers. It serves as a modern replacement for older 5V-only RS-232 drivers, offering pin-compatible upgrades for legacy designs while significantly reducing power consumption. The series is designed to support both 3.3V and 5V system architectures.

Replacement Considerations

Publicly confirmed substitutes include MAX3221E, MAX3222E, and HIN232E. These components offer similar functionality and pinouts but may differ in specific electrical characteristics or package options. Always verify compatibility with the original design specifications.