74F194SC

Overview

The Fairchild Semiconductor 74F194SC is a high-speed, 4-bit bidirectional universal shift register belonging to the F/FAST series. It operates with TTL logic levels and features true outputs in a 16-lead Small Outline Integrated Circuit (SOIC) package. The device supports parallel-in parallel-out data transfer modes and includes an asynchronous master reset function. It is designed for synchronous serial or parallel data transfers and offers a hold mode capability.

Feature Summary

• Supports bidirectional shifting operations including left, right, and parallel loading
• Includes asynchronous master reset functionality for immediate state clearing
• Provides a hold mode that maintains current output states without clock transitions

Applications

• Serial-to-parallel data conversion circuits
• Parallel-to-serial data transmission systems
• Bidirectional data register transfers in digital processing units

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape-and-reel availability. Ensure compatibility with existing 5V TTL logic levels and SOIC-16 footprint requirements on the target printed circuit board layout.

Selection Notes

Select this component when a high-speed, multifunctional sequential building block is required for versatile data handling. It is suitable for applications demanding both serial and parallel interface capabilities within a single integrated circuit solution.

Part Context

This part belongs to the 74F family of high-speed TTL logic devices manufactured by Fairchild Semiconductor. The 74F194 variant specifically addresses the need for flexible data movement in digital systems, offering multiple operating modes within a compact surface-mount package.

Replacement Considerations

Consult official substitution guides for equivalent 4-bit bidirectional shift registers from other manufacturers. Verify pinout compatibility and electrical specifications before replacing the original component.