CDC328ANS

Overview

The CDC328ANS is a clock driver circuit from the Texas Instruments CDC328A series, designed to distribute one input signal to six outputs with minimum skew. It operates on a single 5-V supply (4.75 V to 5.25 V) and features TTL-compatible inputs and outputs. The device utilizes EPIC-II BiCMOS technology for low power dissipation and high-drive outputs capable of -48 mA IOH and 48 mA IOL. It supports polarity control for true or complementary output configurations and includes distributed VCC and GND pins to reduce switching noise.

Feature Summary

• Distributes one clock input to six outputs with low skew
• TTL-compatible inputs and outputs
• Polarity control selects true or complementary outputs
• High-drive outputs (-48-mA IOH, 48-mA IOL)
• EPIC-II BiCMOS design reduces power dissipation

Applications

• Clock-distribution applications
• Clock-generation applications

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the CDC328A family includes SOIC (D), SSOP (DB), and other variants. Confirm the status of the part number, as some suffixes may indicate active production while others might be obsolete or preproduction. Ensure compatibility with the 16-pin surface-mount requirement.

Selection Notes

Select this component when a single-clock distribution to six loads is required with minimal skew. Ensure the system operates within the 4.75 V to 5.25 V supply range and requires TTL logic levels. Consider the EPIC-II BiCMOS technology for lower power consumption compared to standard bipolar designs. Verify thermal requirements for the specific package option.

Part Context

The CDC328ANS belongs to the CDC328A series of clock drivers manufactured by Texas Instruments. This series is characterized by its ability to provide low-skew clock distribution using BiCMOS technology. The 'ANS' suffix typically denotes a specific package and tape/reel configuration within the broader CDC328A product line.

Replacement Considerations

Direct replacements include CDC328AD, CDC328ADR, and CDC328ADBR. These parts share the same core functionality and pinout but differ in packaging (SOIC vs. SSOP) and shipping format (Tube vs. Tape & Reel). Verify package dimensions and moisture sensitivity levels before substitution.