CDC208NSR

Overview

The CDC208NSR is a dual-channel clock buffer and distribution IC manufactured by Texas Instruments. It features two independent circuits, each providing a 1:4 fanout ratio. The device accepts TTL-compatible input signals and generates CMOS outputs. It supports a maximum operating frequency of 60 MHz and functions within a supply voltage range of 4.5 V to 5.5 V. Designed for surface-mount assembly, it is housed in a 20-SOIC package with a width of 5.30 mm. The component operates reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture with two independent 1:4 fanout buffers
• TTL input compatibility with CMOS output levels
• Maximum operating frequency of 60 MHz
• Operates on a single 4.5 V to 5.5 V power supply

Applications

• Clock distribution networks requiring signal buffering
• System timing architectures utilizing TTL-to-CMOS translation
• Industrial control systems operating within specified temperature ranges

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging details. The NSR suffix typically indicates Tape & Reel packaging, but official datasheets should be consulted for exact reel specifications and quantity per unit. Ensure the procurement channel provides valid traceability for this Texas Instruments component.

Selection Notes

Select the CDC208NSR when a dual-channel solution is required to drive multiple CMOS loads from TTL sources. Confirm that the system voltage remains between 4.5 V and 5.5 V. Verify that the 60 MHz frequency limit meets the application's timing requirements and that the 20-SOIC package fits the PCB layout constraints.

Part Context

This component belongs to the family of clock drivers and distribution ICs offered by Texas Instruments. It serves as a specialized buffer for synchronizing digital signals across circuit boards. The part is distinct from general-purpose logic gates due to its optimized fanout capabilities and specific input/output voltage level matching.

Replacement Considerations

Consult Texas Instruments documentation for direct pin-to-pin replacements or functional equivalents within the same series. Verify that any substitute maintains the 1:4 ratio, TTL input, and CMOS output characteristics without altering the electrical performance parameters.