ICL3245ECAZ

Overview

The ICL3245ECAZ is a low-power RS-232 transceiver manufactured by Renesas Electronics. It integrates three drivers and five receivers in a single SSOP-28 package, supporting full-duplex communication at data rates up to 1 Mb/s. The device operates from a single +3 V to +5.5 V supply with a typical operating current of 1 mA. It features enhanced automatic powerdown circuitry that reduces standby current to less than 30 µA when inputs are unconnected. The IC provides ±15 kV ESD protection on all RS-232 lines and requires only external 0.1 µF capacitors for charge pump operation.

Feature Summary

• Integrated three drivers and five receivers for complex serial interface requirements
• Enhanced automatic powerdown function minimizes power consumption during idle states
• Robust electrostatic discharge protection rated at ±15 kV on signal lines

Applications

• Portable computers and notebook systems requiring low-power serial connectivity
• Industrial control panels utilizing RS-232 communication protocols
• Medical equipment needing reliable serial data transmission with high ESD immunity

Procurement Notes

Verify the specific suffix 'ECAZ' confirms the commercial temperature range and tube packaging format. Confirm RoHS compliance status through official Renesas documentation prior to integration. Ensure design compatibility with the SSOP-28 footprint and verify moisture sensitivity levels for surface mount assembly processes.

Selection Notes

Select this component when three transmit and five receive channels are required within a single IC. Compare against the ICL3241ECAZ if lower data rates suffice or if shutdown pin functionality is preferred over automatic powerdown. Verify voltage level compatibility with the target system's logic family before finalizing the design.

Part Context

This part belongs to the ICL3245E series of RS-232 transceivers designed for low-voltage applications. It serves as a successor to earlier Intersil designs, maintaining functional compatibility while offering improved power efficiency. The device is widely used in legacy serial port implementations where space and power constraints are critical factors.

Replacement Considerations

The ICL3245EIAZ-T offers an industrial temperature range and tape-and-reel packaging. The MAX3245EEI is a pin-compatible alternative from Maxim Integrated. Verify electrical specifications and pinout alignment before substituting these parts.