CDC329ADR

Overview

The CDC329ADR is a single-circuit fanout buffer manufactured by Texas Instruments, designed for clock distribution applications. It provides a 1:6 output ratio, converting a TTL input signal into six CMOS outputs. The device supports a maximum operating frequency of 80 MHz and functions within a supply voltage range of 4.75 V to 5.25 V. It is housed in a 16-SOIC package with a width of 3.90 mm. The component operates reliably across an extended temperature range from -40°C to 85°C and is available in surface-mount configurations including Tape & Reel, Cut Tape, and Bulk packaging.

Feature Summary

• Single circuit fanout buffer with 1:6 input-to-output ratio
• Converts TTL input signals to CMOS outputs
• Supports maximum frequency of 80 MHz
• Operates on 4.75 V to 5.25 V supply voltage

Applications

• Clock distribution networks requiring signal buffering
• Digital systems utilizing TTL-to-CMOS level translation
• High-speed data transmission interfaces

Procurement Notes

Verify the specific ordering suffix 'ADR' corresponds to the required tape and reel packaging configuration. Confirm that the 16-SOIC package dimensions align with the target PCB footprint. Ensure the 4.75V–5.25V supply requirement matches the system power rails. Check for any specific handling precautions associated with surface-mount components during assembly.

Selection Notes

Select this component when a single-input, six-output buffer is needed for clock distribution. It is suitable for designs requiring TTL input compatibility and CMOS output drive. The 80 MHz frequency limit defines its high-speed capability. Consider the 16-SOIC package size for board space constraints. Verify thermal performance within the -40°C to 85°C operating range for the intended environment.

Part Context

This part belongs to the clock buffer and driver category, specifically functioning as a fanout buffer. It is distinct from differential drivers or multi-stage buffers. The 16-SOIC package is a standard surface-mount option for logic ICs. The TTL-to-CMOS conversion feature simplifies interface design between different logic families in mixed-signal systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate alternative 1:6 fanout buffers with compatible TTL inputs and CMOS outputs if replacement is necessary.