TW3801-TC1-CRT

Specialized Overview

The TW3801-TC1-CRT is a specialized interface integrated circuit manufactured by Renesas Electronics Corporation, designed primarily for security system applications. It supports MII and RMII network interfaces to facilitate data communication within secure environments. The device operates with dual voltage supplies of 1.8V and 3.3V to meet varying power requirements. It is housed in a 100-TQFP package with dimensions of 12x12 mm, utilizing surface mount technology for PCB integration. The component is classified as obsolete with an end-of-life date of June 6, 2025.

Specialized Feature Summary

• Supports MII and RMII Ethernet interfaces for secure system connectivity
• Dual voltage operation at 1.8V and 3.3V levels
• Surface mount 100-TQFP packaging for compact integration

Specialized Applications

• Security systems requiring dedicated interface solutions

Specialized Procurement Notes

This component has reached end-of-life status with a confirmed discontinuation date of June 6, 2025. Verification of final availability through authorized channels is essential before design finalization. Engineers should review the Product Change Notification for specific obsolescence details and transition timelines. Sourcing from unauthorized distributors carries significant risk due to the discontinued status.

Specialized Selection Notes

Designers must account for the obsolete status when selecting this part, as long-term supply is not guaranteed. Alternative components with compatible MII/RMII interfaces and similar voltage specifications should be evaluated for new designs. Package compatibility remains a critical factor if replacing existing hardware, though pin-to-pin substitutes may not exist for this specific legacy model.

Specialized Part Context

The TW3801 belongs to a family of specialized interface ICs tailored for security applications. This specific variant integrates physical layer connectivity features necessary for secure data transmission. Its development reflects earlier industry standards for embedded security networking, now superseded by newer generations of controllers with enhanced performance and longevity.