ICL3226IA-T

Overview

The ICL3226IA-T is a single-driver, single-receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of +3V to +5.5V and meets EIA/TIA-232 specifications at 3V. The device features enhanced automatic powerdown functionality, reducing supply current to 1μA in the low-power state. It includes on-chip voltage converters requiring only four external 0.1μF capacitors. The component ensures a minimum data rate of 250kbps and a minimum slew rate of 6V/μs. It provides latch-up protection and receiver hysteresis for improved noise immunity.

Feature Summary

• Enhanced automatic powerdown mechanism reduces standby current to 1μA
• On-chip charge pumps require minimal external capacitance
• Integrated receiver hysteresis improves signal integrity
• Latch-up free design ensures robust operation

Applications

• Battery-powered handheld and portable equipment
• Laptop computers and notebook systems
• Modems and peripheral devices
• Digital cameras and cellular/mobile phones

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the 'IA' designation corresponds to the industrial temperature range (-40°C to +85°C) rather than commercial grade. Cross-reference the manufacturer part number with official Renesas documentation to ensure compatibility with specific system requirements.

Selection Notes

Select this component for applications requiring a single-channel RS-232 interface with low power consumption. It serves as a drop-in replacement for MAX3224 and MAX3226 devices. Ensure the system supports the required 0.1μF external capacitors for the internal voltage converters. Verify that the 250kbps data rate meets the communication speed requirements.

Part Context

The ICL3226 series belongs to Intersil's family of low-power RS-232 transceivers, now under Renesas Electronics. These devices are designed for portable electronics where battery life is critical. The ICL3226 specifically offers one driver and one receiver, distinguishing it from multi-channel variants like the ICL3232.

Replacement Considerations

Publicly confirmed direct substitutes include MAX3224 and MAX3226. The ICL3238 is noted for flow-through pinout compatibility.