ICL3245ECVZ-T

Overview

The ICL3245ECVZ-T is a low-power RS-232 transceiver manufactured by Renesas Electronics Corporation, housed in a 16-TSSOP surface-mount package. It operates on a single supply voltage ranging from 3.0V to 5.5V and supports full-duplex communication with one driver and one receiver. The device guarantees data rates exceeding 250kbps under worst-case load conditions and features ±15kV electrostatic discharge (ESD) protection on all RS-232 pins per IEC 61000-4-2 standards. It incorporates an efficient on-chip charge pump and automatic power-down functionality, reducing standby current to 1µA when the cable is disconnected.

Feature Summary

• Automatic power-down function reduces standby current to 1µA upon cable removal or peripheral shutdown
• Integrated charge pump eliminates need for external dual-voltage supplies
• Robust ±15kV ESD protection on RS-232 I/O pins ensures reliability in harsh environments
• Compatible with TTL/CMOS logic levels for direct interface with microcontrollers

Applications

• Portable computers and notebook systems requiring low standby power
• Battery-operated handheld devices and PDAs
• Industrial control systems with serial communication interfaces
• Embedded systems utilizing RS-232 connectivity

Procurement Notes

Verify the complete part number including the suffix 'ECVZ-T' to ensure correct packaging and temperature range specifications. Confirm RoHS compliance status as required by project regulations. Check for recent Product Change Notifications (PCNs) regarding label updates or manufacturing site changes. Ensure compatibility with existing PCB footprint designs for the 16-TSSOP package before finalizing procurement orders.

Selection Notes

Select this component for applications requiring minimal quiescent current and automatic power management. It serves as a drop-in replacement for legacy MAX221E and MAX3221E devices in 3.3V and 5V systems. Consider the 250kbps minimum data rate limit; higher speeds may require alternative models. Verify that the 16-TSSOP package dimensions fit within the mechanical constraints of the target enclosure.

Part Context

This device belongs to the ICL32xxE family of RS-232 transceivers designed for low-power portable electronics. The series is characterized by its ability to operate efficiently at 3.0V while maintaining EIA/TIA-232 compliance. The ICL3245 variant specifically integrates automatic power-down features not present in all family members, making it suitable for battery-critical applications where system sleep modes are managed via hardware detection.

Replacement Considerations

Publicly confirmed pin-compatible substitutes include the MAX221E and MAX3221E. These alternatives offer similar electrical characteristics but may differ in specific ESD robustness ratings or package availability. Verify functional equivalence regarding the automatic power-down threshold and timing parameters before substitution.