ICL3232IV

Overview

The ICL3232IV is a dual driver/receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. The device provides full-duplex communication with a data rate capability of 250 kb/s. It features integrated charge pumps that eliminate the need for external capacitors in some configurations, though typically requires three external capacitors for operation. The component includes 15 kV ESD protection on all RS-232 lines and operates over an industrial temperature range from -40°C to +85°C. It is housed in a 16-pin TSSOP package.

Feature Summary

• Integrated charge pump circuitry for generating required RS-232 voltage levels
• High electrostatic discharge (ESD) protection rated at 15 kV on transmit and receive lines
• Single-ended receiver input configuration compatible with standard TTL/CMOS logic levels
• Full-duplex data transmission capability without requiring external shutdown control

Applications

• Industrial equipment serial communication interfaces
• Modem connections and portable instrumentation
• Point-to-point data transmission links
• RS-232 compliant peripheral interconnects

Procurement Notes

Verify the specific suffix designation when ordering, as variations such as IVZ or IVZ-T indicate different packaging formats like tubes or reels while maintaining identical electrical specifications. Confirm moisture sensitivity level requirements for surface mount assembly processes. Ensure the selected variant matches the required operating temperature range and package type for the target PCB design.

Selection Notes

Select this component for designs requiring robust RS-232 connectivity with built-in ESD protection. Compare against variants like ICL3232ECV-16Z if commercial temperature ranges suffice, or consider shutdown-enabled models like ICL3222EIVZ if power management is critical. Verify pin compatibility with existing footprints when substituting across the ICL3232 family.

Part Context

This part belongs to the Intersil ICL3232 family, now under Renesas Electronics, which are industry-standard dual RS-232 transceivers. The series is known for low power consumption and single-supply operation. The 'IV' designation typically denotes the industrial temperature grade and specific package configuration within the broader product line.

Replacement Considerations

ICL3232IVZ serves as the tube-packaged equivalent. ICL3232ECV-16Z offers similar functionality but with a commercial temperature range. MAX3232 is a common cross-reference from Maxim Integrated, though pinouts and external capacitor requirements should be verified.