HIN232EIV

Overview

The HIN232EIV is a high-speed RS-232 transmitter/receiver interface circuit manufactured by Renesas Electronics. It meets EIA RS-232E and V.28 specifications, designed for systems lacking ±12V supplies. The device operates on a single +5V power supply (4.5V to 5.5V) with onboard charge pumps generating ±10V. Key electrical parameters include a data rate of 230 kbps, ±15kV ESD protection on bus pins, and a typical supply current of 5 mA. It features true TTL/CMOS input compatibility, 300Ω power-off source impedance, and receivers with ±30V input range and hysteresis. The component requires only 0.1µF external capacitors and is available in a 16-pin SSOP package.

Feature Summary

• High-speed data transmission capability up to 230 kbps suitable for ISDN and modem applications
• Robust electrostatic discharge protection rated at ±15kV on all RS-232 bus pins
• Single +5V power supply operation utilizing internal voltage converters to eliminate need for negative rails
• Enhanced noise rejection through receiver hysteresis and fail-safe input impedance characteristics

Applications

• High-speed RS-232 communication ports in computer systems
• ISDN terminal adaptors and high-speed modems
• Portable computers, laptops, and mainframe peripherals
• Instrumentation and UPS systems requiring reliable serial interfaces

Procurement Notes

Verify the specific suffix 'IV' against official Renesas documentation to confirm the exact package type and temperature grade. Ensure the ordering part number matches the required RoHS compliance status and lead-free finish specifications. Cross-reference the manufacturer's latest datasheet to confirm availability and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when designing systems that require RS-232 connectivity but are constrained to a single +5V power rail. It is appropriate for applications needing high data rates up to 230 kbps and robust ESD protection. Consider the 16-pin SSOP package dimensions for PCB layout constraints. Verify that the external capacitor requirements align with the board space and cost targets.

Part Context

The HIN232E belongs to the HIN2xxxE family of RS-232 transceivers from Renesas (formerly Intersil). This family shares common architecture features such as onboard charge pumps and high ESD protection. Variants within the family differ primarily in the number of drivers and receivers, such as the HIN202E or HIN213E. The HIN232E specifically provides a balanced configuration for standard full-duplex serial communications.

FAQ

What is the maximum data rate supported by the HIN232EIV?

The HIN232EIV supports a high data rate of 230 kbps, making it suitable for ISDN and high-speed modem applications.

Does the HIN232EIV require external negative voltage supplies?

No, the device operates from a single +5V power supply. It includes onboard charge pump voltage converters that generate the necessary +10V and -10V supplies internally.

What level of ESD protection does the HIN232EIV offer?

The transmitter outputs and receiver inputs are protected against electrostatic discharge up to ±15kV.