HIN209IB

Overview

The HIN209IB is a dual transmitter and dual receiver RS-232 interface circuit manufactured by Harris Corporation. It operates from a single +5V power supply combined with a +12V supply, utilizing onboard charge pumps to generate the required ±10V levels. The device meets EIA RS-232E and V.28 specifications, supporting data rates up to 120kbit/s. It features three-state TTL/CMOS compatible outputs and inputs with hysteresis for noise rejection. The component includes output current limiting and low power shutdown capabilities.

Feature Summary

• Onboard voltage conversion generating positive and negative supplies from external capacitors
• TTL and CMOS logic compatibility for both driver and receiver stages
• Low power consumption with dedicated shutdown mode functionality

Applications

• Computer serial communication ports
• Portable and laptop computer interfaces
• Peripheral connections such as printers and terminals

Procurement Notes

Verify the manufacturer origin carefully, as Harris Corporation's semiconductor assets were acquired by Intersil and subsequently Renesas. Confirm that the specific HIN209IB part number corresponds to the original Harris datasheet specifications regarding the dual +5V and +12V supply requirement, which distinguishes it from other family members like the HIN203.

Selection Notes

Select this component when an RS-232 interface requires dual drivers and receivers but standard single-supply devices are insufficient. Note that unlike the HIN203 or HIN205, this variant does not eliminate the need for external capacitors. Ensure the system design can accommodate the separate +5V and +12V power rails specified in the electrical characteristics.

Part Context

This device belongs to the HIN200-HIN213 family of RS-232 transmitters and receivers designed for systems lacking ±12V power sources. The family offers various combinations of drivers and receivers. The HIN209IB specifically provides two transmit and two receive channels, differing from single-driver variants or those requiring no external capacitors.

Replacement Considerations

Check for equivalents from Intersil or Renesas, which inherited the Harris product line. Verify pinout compatibility and electrical parameters, particularly the requirement for both +5V and +12V supplies, as many modern replacements operate on a single 3.3V or 5V rail.