HIN236CBZ

Overview

The HIN236CBZ is a high-speed, +5V powered RS-232 transmitter/receiver interface circuit manufactured by Renesas Electronics. It meets EIA RS-232E and V.28 specifications, utilizing an onboard charge pump to generate ±10V supplies from a single +5V source. The device features three drivers and two receivers with TTL/CMOS compatibility. Key electrical parameters include a data rate of 230 kbit/s, ±10V output swing, and ±30V input voltage range for receivers. It operates within a temperature range of 0°C to +70°C and requires only 0.1µF external capacitors for the charge pump.

Feature Summary

• Onboard voltage doubler and inverter eliminate the need for external dual power supplies
• High noise rejection capability through receiver hysteresis and controlled slew rates
• Power-off source impedance ensures bus tri-stating when the device is unpowered

Applications

• Portable computers and laptop serial ports
• Industrial instrumentation and UPS systems
• Modems and peripheral terminals

Procurement Notes

Verify the specific suffix 'CBZ' against official Renesas documentation to confirm package type (SOIC-16) and RoHS compliance status. Ensure the operating environment remains within the specified commercial temperature range of 0°C to +70°C. Confirm that the system design accommodates the required 0.1µF charge pump capacitors near the V+ and V- pins as per the datasheet layout guidelines.

Selection Notes

Select this component when a single +5V supply is available but RS-232 levels are required. It is suitable for applications needing three drivers and two receivers. Consider thermal constraints if ambient temperatures exceed 70°C, as higher temperature variants may be necessary. Verify that the 230 kbit/s speed meets the communication requirements of the target system.

Part Context

The HIN236CBZ belongs to the HIN232A family of high-speed RS-232 transceivers. This series is designed for systems where generating ±12V or ±15V is impractical. The CBZ suffix typically denotes a specific package configuration and environmental compliance level within Renesas's industrial communication product line.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the HIN232ACBNZ. Verify functional equivalence regarding driver count and receiver configuration before substitution.