HIN201IB

Overview

The HIN201IB is a high-speed RS-232 transmitter/receiver interface circuit manufactured by Harris Corporation. It meets EIA RS-232E and V.28 specifications and requires dual power supplies of +5V and +12V, distinguishing it from single-supply variants in the family. The device features onboard charge pump voltage converters that generate +10V and -10V supplies from the input rails. Key electrical parameters include a data rate of 120kbit/s, typical supply current of 5mA, and shutdown current of 1µA. Drivers provide ±10V output swing with 300Ω power-off source impedance, while receivers handle ±30V inputs with 0.5V hysteresis for noise rejection.

Feature Summary

• Dual power supply operation requiring both +5V and +12V inputs
• Onboard charge pump voltage conversion generating internal ±10V rails
• TTL/CMOS compatible drivers with slew rate limiting and current protection
• High noise immunity receivers featuring input hysteresis

Applications

• Portable computer serial communication ports
• Mainframe and laptop system interfaces
• Peripheral connections for printers and terminals

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against standard SOP specifications. Check manufacturing date codes to ensure material stability. Validate RoHS compliance status as historical Harris parts may vary in regulatory adherence depending on production batch.

Selection Notes

Select this specific model when existing system infrastructure provides both +5V and +12V rails, eliminating the need for external charge pumps found in single-supply alternatives. Ensure design accommodates the required external capacitors for the onboard voltage converters. Verify that the 120kbit/s data rate satisfies application timing requirements compared to higher-speed successors.

Part Context

This component belongs to the HIN200-HIN213 family of RS-232 transceivers designed for environments lacking dedicated negative voltage supplies. While many family members operate on a single +5V rail using internal charge pumps, the HIN201IB specifically utilizes available +12V infrastructure. This variant offers a robust interface solution for legacy systems or specialized industrial equipment where dual-rail power is standard.

Replacement Considerations

HIN201ANZ serves as a lead-free replacement variant within the same functional family. Cross-reference with HIN232 series if single-supply +5V operation is preferred, noting the architectural difference regarding onboard voltage generation.