ICL3224EIAZ

Overview

The ICL3224EIAZ is an RS-232 transceiver manufactured by Renesas Electronics Corporation, belonging to the ICL3224E series. It features one driver and two receivers operating in full duplex mode with a data rate of 250 kb/s. The device supports supply voltages between 3 V and 5.5 V, including 3.3 V and 5 V operation, while consuming only 1 mA of working power current. It provides ±15 kV ESD protection on both transmitter outputs and receiver inputs. Designed for industrial environments, it operates within a temperature range of -40°C to +85°C and is housed in a 20-pin SSOP package suitable for surface mount installation.

Feature Summary

• Integrated charge pump enables single 3V to 5.5V supply operation without external voltage conversion components
• Provides robust ±15kV electrostatic discharge protection on all RS-232 pins per IEC61000-4-2 standards
• Includes automatic power-down functionality to minimize standby current when no signal activity is detected

Applications

• Industrial control systems requiring reliable serial communication in electrically noisy environments
• Portable computing devices such as laptops and PDAs where low power consumption is critical
• Embedded systems utilizing mixed 3.3V and 5.0V logic levels for serial interface connectivity

Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified partners. Confirm RoHS compliance status and moisture sensitivity level (MSL 2) handling requirements during storage and assembly. Ensure ordering suffix matches required packaging format, noting that standard tubes contain specific quantities distinct from tape-and-reel variants. Cross-reference datasheet revisions to confirm pinout and electrical characteristics remain consistent with design specifications.

Selection Notes

Select this component when designing systems requiring one transmit and two receive channels for RS-232 communication. It is appropriate for applications needing high ESD immunity and operation across wide industrial temperature ranges. Consider alternative models within the ICL32xE family if different driver/receiver counts or package types are necessary. Verify that the 250kbps data rate meets system timing requirements and that the 20-SSOP footprint fits the PCB layout constraints.

Part Context

This part belongs to the Intersil/Renesas ICL32xE family of low-power RS-232 transceivers. These devices are engineered to meet EIA/TIA-232 and V.28/V.24 standards while supporting modern 3V and 5V logic systems. The family emphasizes miniaturization and energy efficiency, making them suitable for battery-powered portable electronics and space-constrained industrial interfaces.

Replacement Considerations

Compatible substitutes include ICL3223EIAZ and ICL3225EIAZ from the same manufacturer. Verify functional equivalence regarding driver/receiver counts and package dimensions before substitution.