HIN211IB

Overview

The HIN211IB is a quad driver, five receiver RS-232 transceiver manufactured by Harris Corporation. It operates from a single +5V supply using onboard charge pumps to generate ±10V levels, eliminating the need for external dual supplies. The device meets EIA RS-232E and V.28 specifications with a data rate of 120kbit/s. Key electrical parameters include a typical operating current of 5mA and shutdown current of 1µA. It features TTL/CMOS compatible inputs, ±30V input protection on receivers, and hysteresis for noise rejection. The component is housed in a 28-pin SSOP package.

Feature Summary

• Onboard voltage conversion generates required bipolar supplies from a single positive rail
• Integrated low-power shutdown mode significantly reduces energy consumption
• Receiver inputs feature hysteresis to enhance signal integrity in noisy environments
• Outputs maintain defined impedance states when power is removed

Applications

• Portable computers and laptop serial communication ports
• Industrial instrumentation requiring robust RS-232 interfaces
• Peripheral connections such as printers and terminals
• Modems and ISDN terminal adaptors

Procurement Notes

Verify the manufacturer origin carefully, as Harris Semiconductor assets were acquired by Intersil and subsequently Renesas. Confirm that the specific part number corresponds to the original Harris production run rather than later rebrands. Check datasheet revisions to ensure pinout and electrical characteristics match the intended design requirements before finalizing procurement.

Selection Notes

Select this component when designing systems limited to a single +5V power source but requiring standard RS-232 signaling. It is suitable for applications needing multiple drivers and receivers within a compact footprint. Ensure external 0.1µF capacitors are available for the charge pump circuit. Consider the thermal dissipation capabilities of the SSOP package relative to the ambient operating conditions.

Part Context

This device belongs to the HIN200-HIN213 family of high-speed RS-232 transceivers designed for single-supply operation. The HIN211 variant specifically provides four drivers and five receivers, offering flexibility for complex bus topologies. It represents a transition period component bridging Harris Corporation's legacy semiconductor portfolio with subsequent industry consolidations.

Replacement Considerations

HIN211CBZ-T serves as a verified equivalent within the same functional family.