ICL3232ECBZ

Overview

The ICL3232ECBZ is a dual driver/receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3V to 5.5V and supports data rates up to 250kbps. The device features ±15kV ESD protection on the RS-232 pins, ensuring robustness against electrostatic discharge events. Packaged in a 16-pin SOIC format, it includes an internal charge pump requiring only four external 0.1µF capacitors. The component is designed for low-power applications, with standby current reduced to 1µA through automatic power-down functionality triggered by cable removal or peripheral shutdown.

Feature Summary

• Integrated ±15kV ESD protection on all RS-232 lines for enhanced signal integrity
• Automatic power-down mode reduces standby current to 1µA when idle
• Internal charge pump eliminates need for external negative voltage supplies
• Compatible with single +3V to +5.5V power sources

Applications

• Battery-powered handheld devices and PDAs
• Laptop and notebook computer serial ports
• Modems and printer interfaces
• Portable medical equipment

Procurement Notes

Verify the specific suffix 'ECBZ' against official Renesas documentation to confirm package type (SOIC-16) and temperature grade. Ensure compatibility with existing PCB footprints for 16-SOIC packages. Confirm RoHS compliance status matches project requirements. Cross-reference datasheet revision dates to ensure latest electrical characteristics are applied.

Selection Notes

Select this component for designs requiring full-duplex RS-232 communication with minimal external passive components. It is suitable for systems needing high ESD tolerance without additional protection circuitry. Consider the 250kbps speed limit when evaluating higher baud rate requirements. Verify that the 16-pin SOIC footprint aligns with assembly capabilities.

Part Context

This part belongs to the ICL3232 family of RS-232 transceivers from Renesas. It serves as a drop-in replacement for legacy MAX3232 devices in many applications. The family is characterized by low power consumption and wide operating voltage ranges, making it common in portable electronics where battery life is critical.

Replacement Considerations

ICL3232IVZ-T7A is a documented alternative in TSSOP-16 packaging. MAX3232EIBZ is a pin-compatible competitor offering similar electrical specifications. Verify pinout compatibility before substitution.