74LVCH646AEQ

Overview

The 74LVCH646AEQ is an octal bus transceiver manufactured by IDT, belonging to the 74LVCH logic series. It features eight bidirectional data paths with three-state outputs, designed for high-speed memory and buffer applications. The device operates within a supply voltage range of 3.0V to 3.6V, ensuring compatibility with standard 3.3V CMOS systems. It supports LVTTL input and output levels, facilitating seamless interface between different logic families in complex digital circuits.

Feature Summary

• Provides eight bidirectional data transmission channels for efficient bus interfacing
• Features three-state outputs to prevent signal contention on shared buses
• Supports low-voltage operation compatible with 3.3V CMOS standards
• Ensures level translation between LVTTL inputs and outputs

Applications

• High-speed memory buffer applications
• Clock drivers and buffering
• Bus-oriented communications systems
• Memory and storage architectures

Procurement Notes

Verify the specific package type and tape/reel configuration required for your assembly line before ordering. Confirm that the RoHS status aligns with your environmental compliance requirements, as indicated in official documentation. Ensure the moisture sensitivity level (MSL 3) is accounted for in your manufacturing timeline to maintain component integrity during soldering processes.

Selection Notes

Select this component when designing systems requiring octal bidirectional data transfer at 3.3V logic levels. It is suitable for applications needing LVTTL compatibility and three-state control. Consider the drive capability and propagation delay specifications relative to your system's timing constraints. Ensure the chosen package variant fits your PCB layout and thermal management requirements.

Part Context

This part belongs to the 74LVCH series of advanced CMOS octal bus transceivers from IDT. The series is characterized by low voltage operation and high speed, making it ideal for modern embedded systems. IDT, now part of Renesas Electronics, continues to support this legacy logic family for industrial and consumer electronics applications requiring reliable 3.3V interface solutions.

FAQ

What is the primary function of the 74LVCH646AEQ?

It functions as an octal bus transceiver with three-state outputs, allowing bidirectional data flow between two buses under control of a direction signal.

Does the 74LVCH646AEQ support level shifting?

Yes, it is designed to accept LVTTL inputs and provide corresponding LVTTL outputs, facilitating interface between different logic voltage domains.