CDC328ADBR

Overview

The CDC328ADBR is a single-channel fanout buffer and clock distribution integrated circuit manufactured by Texas Instruments. It provides a 1:6 output ratio, accepting TTL-compatible inputs and generating six TTL-compatible outputs. The device operates within a supply voltage range of 4.75V to 5.25V and supports maximum frequencies up to 100 MHz. Designed for surface-mount assembly, it is housed in a 16-SSOP package with a width of 5.30mm. The component functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Single 1:6 fanout buffer configuration
• TTL input and output compatibility
• Maximum operating frequency of 100 MHz
• Operates on 4.75V to 5.25V supply voltage

Applications

• Clock signal distribution in digital systems
• Buffering high-speed timing signals
• Driving multiple loads from a single source

Procurement Notes

Verify the specific ordering suffix 'DBR' corresponds to the Tape & Reel packaging format as indicated in the product parameters. Confirm that the 16-SSOP package dimensions align with the design footprint requirements. Ensure the 4.75V–5.25V supply voltage constraint meets the system power specifications before procurement.

Selection Notes

Select this component when a single TTL input must drive up to six TTL loads at frequencies up to 100 MHz. The 16-SSOP package is suitable for surface-mount applications requiring a compact form factor. Verify that the system environment remains within the -40°C to +85°C operating temperature range for reliable performance.

Part Context

This part belongs to the clock buffer and driver category, specifically functioning as a fanout buffer. It is distinct from clock multipliers or dividers, focusing solely on signal distribution and buffering. The 16-SSOP package variant is designed for automated surface-mount assembly processes.

Replacement Considerations

Check for direct pin-to-pin replacements within the same manufacturer's portfolio that offer identical 1:6 ratios and TTL compatibility. Verify that any substitute maintains the 100 MHz frequency limit and 4.75V–5.25V supply voltage requirements.