HIN208ECB

Overview

The HIN208ECB is a single-supply RS-232 transceiver manufactured by Renesas Electronics Corporation, formerly part of the Intersil product line. It operates from a single +5V supply and integrates onboard charge pumps to generate the required positive and negative voltages for RS-232 communication without external high-voltage sources. The device features three drivers and two receivers, providing full RS-232 functionality in a compact package. It meets EIA/TIA-232-E and V.28 specifications, ensuring compatibility with standard serial communication interfaces. The component includes protection against electrostatic discharge (ESD) up to ±15kV on both transmitter outputs and receiver inputs, enhancing reliability in industrial environments.

Feature Summary

• Single +5V power supply operation eliminates the need for dual polarity power sources
• Integrated charge pump circuitry generates internal positive and negative voltage rails
• High electrostatic discharge protection rated at ±15kV on driver outputs and receiver inputs
• True TTL/CMOS input compatibility ensures seamless interface with digital logic families

Applications

• Portable computers and laptop serial port implementations
• Industrial instrumentation requiring robust RS-232 connectivity
• Modems and ISDN terminal adaptors needing high-speed data transmission
• Printers and terminals connected via standard serial interfaces

Procurement Notes

Verify the manufacturer origin, as this part originates from the Intersil portfolio acquired by Renesas. Confirm the specific suffix 'CB' corresponds to the correct package type and temperature range for your design requirements. Ensure that the single +5V supply constraint aligns with your system's power architecture, as the device does not support alternative voltage levels.

Selection Notes

Select this component when designing systems limited to a single +5V power rail but requiring full RS-232 signal levels. It is suitable for applications demanding high ESD immunity due to its ±15kV protection rating. Consider the pinout compatibility with other devices in the HIN202E/HIN206E family if system scalability is a priority. Verify that the package availability matches your manufacturing constraints, as legacy parts may have specific sourcing considerations.

Part Context

The HIN208ECB belongs to the broader HIN2xxxE family of RS-232 transceivers designed for low-power, single-supply applications. This family was originally developed by Intersil before being integrated into Renesas Electronics following their acquisition. The devices are characterized by their ability to operate without external charge pump capacitors in some variants, though the HIN208 typically requires them. They serve as a bridge between TTL/CMOS logic levels and RS-232 voltage standards in embedded systems.

Replacement Considerations

Direct replacements within the same family include the HIN202E, HIN206E, and HIN211E, which offer similar electrical characteristics but may vary in the number of drivers and receivers. Ensure that any substitute maintains the ±15kV ESD protection level and single +5V supply requirement. Verify pin-to-pin compatibility if replacing in an existing PCB layout.