CDC337DWG4

Overview

The CDC337DWG4 is a single-channel clock buffer and distribution integrated circuit manufactured by Texas Instruments. It functions as a fanout buffer with a 1:8 input-to-output ratio, designed to distribute TTL input signals to eight CMOS outputs. The device supports a maximum operating frequency of 80 MHz and operates within a supply voltage range of 4.75 V to 5.25 V. It is housed in a 20-SOIC package (0.295 inch width) suitable for surface mount installation. The component is rated for an industrial temperature range from -40°C to +85°C.

Feature Summary

• Single circuit configuration providing 1:8 fanout distribution
• Converts TTL input to CMOS output levels
• Maximum operational frequency of 80 MHz
• Surface mount 20-SOIC package

Applications

• Clock signal distribution in digital systems
• Fanout buffering for timing circuits
• TTL to CMOS level translation interfaces

Procurement Notes

This specific part number is listed as discontinued by DigiKey. Verification of current availability requires checking authorized distributors or the manufacturer directly. Alternative sourcing may involve the standard CDC337DW variant or other compatible components if this exact suffix is unavailable.

Selection Notes

Select this component when a single-input, eight-output clock buffer is required for TTL-driven CMOS loads. Ensure the design accommodates the 4.75V to 5.25V supply requirement and the 20-SOIC footprint. Verify that the 80 MHz frequency limit meets the system's timing requirements.

Part Context

The CDC337DWG4 belongs to the CDC337 family of clock drivers. The 'G4' suffix typically indicates RoHS compliance and lead-free manufacturing status according to Texas Instruments conventions, though the core electrical functionality remains identical to the base CDC337DW model.

Replacement Considerations

The CDC337DW is identified as a manufacturer-recommended alternative. Other parts in the CDC337 series may offer similar specifications but should be verified against specific pinout and electrical parameter requirements.