ICL3226EIAZ

Overview

The ICL3226EIAZ is a single driver and single receiver RS-232 transceiver from the ICL32xxE series, manufactured by Renesas Electronics. It operates on a single 3V to 5.5V supply with a maximum operating temperature of 125°C and minimum of -40°C. The device supports data rates up to 235 kb/s and features 15 kV ESD protection down to ground. It utilizes small external 0.1µF capacitors and offers TTL/CMOS compatible outputs. Packaged in a 16-pin SSOP, it complies with V.28/V.24, EIA/TIA-232, and IEC61000-4-2 standards.

Feature Summary

• Integrated 15 kV electrostatic discharge (ESD) protection capability for enhanced robustness
• Operates from a single low-voltage power supply ranging from 3V to 5.5V
• Utilizes compact 0.1µF external charge pump capacitors to minimize board space
• Provides full duplex communication with TTL/CMOS output compatibility

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment utilizing low voltage supplies
• Modems and portable instruments needing ESD protection
• Data acquisition systems interfacing with RS-232 peripherals

Procurement Notes

Verify the specific suffix 'IAZ' indicates the lead-free RoHS-compliant variant within the ICL3226 family. Confirm package integrity upon receipt as surface-mount devices are sensitive to moisture. Cross-reference the manufacturer date code against current production status to ensure availability. Validate that the ordering part number matches the required 16-pin SSOP configuration for your PCB footprint.

Selection Notes

Select this component when a single driver and receiver are sufficient for full-duplex RS-232 links. It is suitable for designs constrained by low voltage operation between 3V and 5.5V. Consider the 235 kb/s data rate limit for high-speed requirements. Ensure the application environment stays within the -40°C to 125°C industrial temperature range specified for this grade.

Part Context

This part belongs to the ICL32xxE series of RS-232 transceivers designed for low-power applications. It succeeds earlier CMOS versions by offering improved ESD performance and lower supply current. The ICL3226 specifically provides one driver and one receiver, distinguishing it from dual-driver variants like the ICL3224 or higher-speed models in the same family.

Replacement Considerations

• MAX3226EIAZ
• SP3226EIAZ

FAQ

What is the maximum data rate supported by the ICL3226EIAZ?

The ICL3226EIAZ supports a maximum data rate of 235 kb/s.

Does the ICL3226EIAZ include internal ESD protection?

Yes, the device includes integrated 15 kV ESD protection down to ground on all pins.

What type of external capacitors are required for operation?

The device requires four external 0.1µF capacitors for the charge pump circuit.