HIN232IBZ-T

Overview

The HIN232IBZ-T is a high-speed, +5V powered RS-232 transmitter/receiver manufactured by Renesas Electronics Corporation. It meets all EIA RS-232E and V.28 specifications and operates on a single +5V power supply using an onboard voltage doubler/inverter to generate ±10V supplies. The device features two drivers and two receivers with full-duplex communication capability. Key electrical parameters include a data rate of 230 kbit/s, a supply voltage range of 4.5V to 5.5V, and a typical operating current of 5mA. It offers ±15kV ESD protection on bus pins, ±30V input voltage range for receivers, and 300Ω power-off source impedance. The component is housed in a 16-pin SOIC package.

Feature Summary

• Onboard charge pump generates compliant RS-232 voltage levels from a single +5V supply without requiring external ±12V sources.
• High-speed data transmission capability up to 230 kbit/s with slew-rate-limited outputs to minimize electromagnetic interference.
• Robust noise rejection through receiver hysteresis and high input impedance, supporting reliable communication in noisy environments.
• Integrated ±15kV electrostatic discharge (ESD) protection on transceiver pins to safeguard connected equipment.

Applications

• Portable computers, laptops, and mainframe systems requiring serial communication ports.
• Peripheral devices such as printers, terminals, and modems.
• Instrumentation and uninterruptible power supply (UPS) systems.

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status and moisture sensitivity level requirements for surface-mount assembly processes. Ensure the supplier provides official datasheets matching the HIN232 series specifications to guarantee functional compatibility with existing designs.

Selection Notes

Select this component for applications requiring high-speed RS-232 communication within a standard +5V logic environment. It is suitable for designs where space constraints prevent the use of multiple voltage rails. Consider the 230 kbit/s data rate limit and ensure it aligns with system timing requirements. Verify that the 16-pin SOIC package fits the available PCB footprint and thermal management strategy.

Part Context

The HIN232IBZ-T belongs to the HIN232-HIN241 series of RS-232 interface circuits designed for modern low-voltage digital systems. This series eliminates the need for traditional dual-polarity power supplies by integrating charge pumps directly onto the silicon die. The 'I' designation typically denotes industrial temperature range operation, while 'BZ' specifies the lead-free SOIC package type.

Replacement Considerations

Compatible substitutes within the same family include HIN232ACBNZ and HIN232ECBZ. Verify pinout compatibility and electrical parameter alignment before substitution. Alternative packages such as TSSOP or QFN may require schematic redesign due to different pin assignments.