CDC208DW

Overview

The CDC208DW is a clock buffer and distribution integrated circuit manufactured by Texas Instruments. It features two independent circuits, each providing a 1:4 fanout ratio. The device accepts TTL 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 applications, it is housed in a 20-SOIC package with a width of 7.50 mm. The component operates reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Dual-channel architecture with two independent 1:4 fanout buffers
• TTL input compatibility driving CMOS outputs
• Maximum frequency performance up to 60 MHz
• Operates on a single 4.5 V to 5.5 V power supply

Applications

• Clock signal distribution in digital systems
• Buffering timing signals for CMOS logic networks
• Frequency synthesis output stages

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tube packaging details. Ensure the selected variant matches the required 20-SOIC footprint and industrial temperature specifications for integration into the target design.

Selection Notes

Select this component when a dual-channel clock buffer with 1:4 fanout capability is required. It is suitable for designs needing TTL-to-CMOS level translation and operation at frequencies up to 60 MHz. Confirm that the 20-SOIC package dimensions fit the PCB layout constraints.

Part Context

This part belongs to the Texas Instruments family of clock buffers and drivers. It serves as a distribution element for timing signals, converting input formats to drive multiple downstream loads. The device is distinct from clock generators or oscillators as it distributes existing clock sources rather than creating them.

Replacement Considerations

Consult official substitution guides for compatible parts with matching 1:4 fanout ratios and SOIC-20 packages. Verify electrical parameters such as supply voltage and frequency limits before replacing.