CDC339DWG4

Overview

The CDC339DWG4 is a single-circuit fanout buffer and clock distribution integrated circuit manufactured by Texas Instruments. It provides an 8:1 output ratio, converting one TTL input to eight TTL outputs with a maximum frequency of 80 MHz. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports surface mount installation in a 20-SOIC package (0.295 inch width). It functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Single circuit configuration with 1:8 input-to-output ratio
• TTL input and TTL output logic levels
• Maximum operating frequency of 80 MHz
• Surface mount 20-SOIC package

Applications

• Clock signal distribution in digital systems
• Fanout buffering for timing circuits
• Industrial control system clocking

Procurement Notes

Verify the specific ordering suffix G4 against current manufacturer documentation to confirm RoHS compliance status and exact package specifications. Confirm availability as this component may be discontinued or subject to change. Ensure the 20-SOIC footprint matches the target PCB design requirements before procurement.

Selection Notes

Select this component when a single TTL source requires driving eight TTL loads at frequencies up to 80 MHz. Verify that the 4.75 V to 5.25 V supply voltage aligns with the system power rails. Consider the 20-SOIC package dimensions for layout constraints and thermal management within the -40°C to +85°C operating range.

Part Context

This part belongs to the CDC339 series of clock buffers and drivers. The 'G4' suffix typically indicates environmental compliance features such as lead-free construction, though verification against the official datasheet is required. It serves as a direct replacement for standard CDC339 devices in existing designs requiring updated material specifications.

Replacement Considerations

The CDC339DW is listed as a parameter-equivalent alternative. Verify pin compatibility and electrical characteristics before substitution.