CDC208NS

Overview

The CDC208NS is a fanout buffer and clock distribution integrated circuit manufactured by Texas Instruments. It provides four outputs from a single TTL input, operating within a supply voltage range of 4.5V to 5.5V. The device supports a maximum frequency of 60 MHz and functions across an industrial temperature range of -40°C to +85°C. Packaged in a 20-SOIC surface-mount case with a 0.209-inch width, it is designed for applications requiring signal buffering and distribution without differential signaling capabilities.

Feature Summary

• Single TTL input driving four CMOS outputs
• Maximum operating frequency of 60 MHz
• Supply voltage range of 4.5V to 5.5V
• Industrial temperature operation from -40°C to +85°C

Applications

• Clock signal distribution in digital systems
• TTL to CMOS level translation buffers
• Fanout buffering for high-speed logic circuits

Procurement Notes

Verify the specific package variant against the 20-SOIC (0.209 inch width) specification. Confirm that the required operating temperature range aligns with the -40°C to +85°C industrial grade. Ensure the design accommodates the 4.5V to 5.5V supply voltage constraints for proper functionality.

Selection Notes

Select this component when a single TTL source must drive multiple CMOS loads. The 1:4 ratio suits moderate fanout requirements up to 60 MHz. Consider the 20-SOIC package dimensions for PCB layout compatibility. Verify that the non-differential nature meets the system's signal integrity needs.

Part Context

This part belongs to the clock buffer and driver category, specifically functioning as a fanout buffer. It serves as a discrete solution for distributing clock signals within electronic assemblies where standard logic families require buffering or level shifting between TTL inputs and CMOS outputs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.