CDC328ADG4

Overview

The CDC328ADG4 is a fanout buffer and clock distribution integrated circuit manufactured by Texas Instruments. It provides one input to six outputs with TTL-compatible logic levels. The device operates within a supply voltage range of 4.75V to 5.25V and supports a maximum frequency of 100 MHz. It is designed for surface mount installation in a 16-SOIC package (0.154 inch width). The component functions across an operating temperature range of -40°C to +85°C, suitable for industrial applications requiring reliable clock signal distribution.

Feature Summary

• Single-input to six-output fanout buffer configuration
• TTL-compatible input and output logic levels
• Maximum operating frequency of 100 MHz
• Operates on a single 5V supply (4.75V to 5.25V)

Applications

• Clock signal distribution in digital systems
• Buffering clock lines for multiple loads
• Industrial control equipment timing circuits

Procurement Notes

Verify the specific ordering suffix 'DG4' against manufacturer documentation to confirm package type and material specifications. Ensure the required quantity aligns with tube packaging constraints if applicable. Confirm that the 16-SOIC footprint matches the target PCB design guidelines before procurement.

Selection Notes

Select this component when a single clock source must drive up to six TTL-compatible loads simultaneously. Verify that the system power supply remains stable between 4.75V and 5.25V. Ensure the operating environment stays within the -40°C to +85°C range. Consider the 100 MHz frequency limit relative to the system clock requirements.

Part Context

This part belongs to the Texas Instruments clock buffer and driver category. It serves as a discrete solution for expanding clock signals in systems where dedicated clock generator ICs are not required. It complements other buffering components by providing fixed 1:6 distribution capabilities.

Replacement Considerations

Check for direct pin-to-pin replacements from Texas Instruments or other manufacturers offering 1:6 TTL fanout buffers in 16-SOIC packages. Verify electrical compatibility regarding supply voltage and propagation delay characteristics before substitution.