N8251A-G

Overview

The N8251A-G is a high-performance, low-power CMOS 4-bit universal shift register manufactured by Rochester Electronics. It features parallel load capability and serial input/output options, making it suitable for data storage and transfer applications. The device operates within a standard voltage range and supports bidirectional shifting. Its design ensures reliable performance in digital logic circuits requiring compact memory elements or counter functions.

Feature Summary

• Supports parallel loading of 4-bit data for rapid initialization
• Enables bidirectional serial shifting for flexible data movement
• Compatible with standard CMOS logic families for easy integration

Applications

• Digital counters and timing circuits
• Data storage registers in microprocessor systems
• Serial-to-parallel conversion modules

Procurement Notes

Verify the manufacturer marking and date code to ensure authenticity from Rochester Electronics. Confirm that the package type matches your PCB footprint requirements. Check for any specific handling precautions related to static sensitivity during installation.

Selection Notes

Choose this component when a compact 4-bit shift register with parallel load functionality is required. Ensure the operating voltage and speed specifications meet your system's needs. Consider pin compatibility if replacing existing designs.

Part Context

This part belongs to the family of CMOS shift registers widely used in digital electronics. Rochester Electronics often sources and distributes legacy or surplus components from various original manufacturers, ensuring supply continuity for established designs.

Replacement Considerations

Check for direct pin-compatible alternatives such as the SN74LS194 or equivalent CMOS variants like the CD4016B series if functional differences are acceptable. Verify electrical characteristics match before substitution.