4731BDC

Overview

The National Semiconductor 4731BDC is a 64-bit serial-in, parallel-out shift register implemented in CMOS technology. It belongs to the SN74166 base product family and is housed in a 14-CDIP package. The device features four elements for 64-bit data storage and shifting operations.

Feature Summary

• CMOS logic implementation for low power consumption
• 64-bit serial-to-parallel data shifting capability
• 14-pin ceramic dual in-line package construction

Applications

• Digital data storage systems
• Serial communication interface circuits
• Parallel output generation from serial inputs

Procurement Notes

Verify the manufacturer origin carefully, as listings may attribute the part to SolidRun LTD or other distributors while the base component is National Semiconductor. Confirm the specific suffix requirements if operating conditions differ from standard specifications. Ensure the 14-CDIP package matches your board layout constraints before ordering.

Selection Notes

Select this component when a high-density 64-bit shift register is required in a CMOS process. The CDIP package suits through-hole mounting applications. Consider the SN74166 compatibility if pinout alignment with legacy designs is necessary. Verify voltage levels against system requirements.

Part Context

This part is part of the 4731B series, derived from the SN74166 architecture. It serves as a digital logic component for managing large data words in serial formats. The CMOS variant offers improved power efficiency compared to earlier TTL equivalents.

Replacement Considerations

Check for direct replacements within the SN74166 family that match the 14-CDIP package. Verify electrical characteristics such as supply voltage and switching speeds against the original design specifications.