CDC351DW

Overview

The Texas Instruments CDC351DW is a single-circuit fanout buffer designed for clock distribution applications. It accepts one LVTTL input and provides ten tri-state LVTTL outputs, operating at a maximum frequency of 100 MHz. The device functions within a supply voltage range of 3V to 3.6V and is rated for an industrial temperature range of 0°C to 70°C. Packaged in a 24-SOIC surface-mount case with a 7.50mm width, it serves as a dedicated clock driver for digital systems requiring signal splitting without differential signaling capabilities.

Feature Summary

• Single-input to ten-output LVTTL fanout buffer configuration
• Maximum operating frequency of 100 MHz
• Tri-state output capability for bus isolation
• Operates on a 3V to 3.6V power supply

Applications

• Clock distribution networks in embedded systems
• Signal buffering for high-speed digital logic
• Multi-load clock routing in communication equipment

Procurement Notes

Verify the package type matches the required bulk or tube format during ordering. Confirm that the 0°C to 70°C commercial temperature rating meets the operational environment requirements. Ensure the 24-SOIC footprint aligns with the PCB layout specifications before procurement.

Selection Notes

Select this component when a single-ended LVTTL clock source must drive up to ten loads simultaneously. The tri-state feature allows for dynamic control of the clock signals. Verify that the system voltage remains strictly between 3V and 3.6V to ensure proper logic level compatibility and device functionality.

Part Context

This part belongs to the Texas Instruments clock buffer family, specifically engineered for distributing timing signals. The CDC351DW variant utilizes a standard SOIC package suitable for automated surface-mount assembly processes, distinguishing it from through-hole or smaller footprint alternatives in the same series.

Replacement Considerations

Check for pin-compatible alternatives such as the CDC351IDBR or CDC351IDW if extended temperature ranges or tape-and-reel packaging are required. Ensure any substitute maintains the 1:10 ratio and LVTTL interface specifications.