ICL3238IAZ

Overview

The ICL3238IAZ is a low-power RS-232 transceiver manufactured by Renesas Electronics. It integrates five drivers and three receivers in a single SSOP-28 package, supporting full-duplex communication at data rates up to 250 kb/s. The device operates on a single 3 V to 5.5 V supply with a typical operating current of 1 mA. It features power-down mode functionality for reduced consumption and includes 15 kV ESD protection on all inputs and outputs. The component is rated for an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Integrates five independent drivers and three independent receivers for comprehensive serial interface connectivity.
• Features power-down mode capability to minimize power consumption during idle periods.
• Provides robust 15 kV electrostatic discharge (ESD) protection on driver outputs and receiver inputs.

Applications

• Industrial control systems requiring reliable RS-232 communication
• Portable battery-powered equipment utilizing low-voltage operation
• Modems and external storage devices interfacing via serial ports

Procurement Notes

Verify the specific suffix 'IAZ' against the manufacturer's official documentation to confirm the exact temperature grade and packaging configuration. Ensure compatibility with the target system's voltage levels and signal integrity requirements before procurement. Cross-reference the Renesas datasheet for any recent lifecycle status updates or recommended design changes.

Selection Notes

Select this component when a high channel count (five drivers, three receivers) is required within a compact SSOP-28 footprint. It is suitable for designs needing low quiescent current and robust ESD protection without external components. Compare performance metrics such as data rate limits and operating temperature ranges against alternative transceivers to ensure alignment with specific application constraints.

Part Context

The ICL3238 belongs to the Intersil RS-232 transceiver family, now managed by Renesas Electronics following corporate acquisitions. This series is designed to replace legacy standard RS-232 drivers that typically require dual positive and negative power supplies. The ICL3238 simplifies system design by generating internal charge pump voltages from a single low-voltage source.

Replacement Considerations

The MAX3238EEAI+T from Analog Devices serves as a functional equivalent with similar pinout and specifications. Verify electrical parameters and package dimensions carefully when substituting to ensure mechanical fit and signal compatibility.