HIN241IA

Overview

The HIN241IA is a single RS-232 transmitter and receiver manufactured by Intersil. It operates from a single 5V supply and includes internal charge pumps to generate the required positive and negative voltages for RS-232 signaling, eliminating the need for external capacitors in some configurations or using small external ones. The device features low power consumption, with shutdown current typically less than 10µA. It provides ESD protection of ±15kV on driver outputs and ±8kV on receiver inputs according to the Human Body Model. The 'I' suffix denotes an industrial temperature range operation.

Feature Summary

• Single-supply 5V operation with integrated charge pump circuitry
• High ESD protection ratings on both driver and receiver pins
• Low power shutdown mode for battery-operated applications
• Guaranteed data rate up to 120 kbps

Applications

• Industrial control systems requiring serial communication
• Portable instrumentation and test equipment
• Point-of-sale (POS) terminals
• Modem interfaces

Procurement Notes

Verify the manufacturer origin, as Intersil was acquired by Renesas Electronics. Ensure the part number matches the specific package variant (e.g., DIP or SOIC) and temperature grade indicated by the suffix. Confirm RoHS compliance status if required for your assembly process, as older stock may differ from current production runs.

Selection Notes

Select this component when a single-channel RS-232 interface is needed with minimal external components. Compare against similar devices like the MAX232 or HIN232 based on pin compatibility and specific ESD requirements. Consider the HIN241A for higher speed requirements if the standard 120 kbps is insufficient, noting potential differences in drive strength and bandwidth.

Part Context

The HIN241 series belongs to Intersil's family of 5V-powered RS-232 transceivers. These devices are designed to replace traditional dual-supply solutions, simplifying board layout and reducing component count. The HIN241IA specifically targets industrial environments due to its extended temperature range and robust protection features, making it suitable for harsh electrical conditions.

Replacement Considerations

Direct pin-compatible replacements include the HIN232 (dual channel) or HIN242 (dual channel). For single-channel needs, the MAX232 is a common alternative but may require different external capacitor values. Verify that any substitute maintains the same ESD protection levels and operating voltage range.