SN74S194N

Shift Registers Overview

The SN74S194N is a 4-bit bidirectional universal shift register from the Texas Instruments SN74S series. It features serial and parallel input capabilities with four parallel outputs. The device operates on a single supply voltage ranging from 4.75 V to 5.25 V. It utilizes positive edge-triggered clocking for data synchronization. The component is housed in a 16-pin PDIP package designed for through-hole mounting.

Shift Registers Feature Summary

• Supports bidirectional shifting operations for both left and right data movement
• Enables synchronous parallel loading of data into all stages simultaneously
• Provides independent serial inputs for left-shift and right-shift directions
• Includes a direct-acting asynchronous clear input to reset all flip-flops

Shift Registers Applications

• Data storage and buffering in digital systems
• Serial-to-parallel and parallel-to-serial conversion circuits
• Arithmetic logic unit data path implementations
• Digital signal processing shift operations

Shift Registers Procurement Notes

Verify the specific suffix N indicates the PDIP-16 through-hole package variant. Confirm RoHS compliance status as it varies by manufacturing batch. Ensure the operating temperature range meets the application requirements. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Shift Registers Selection Notes

Select this component when high-speed switching is required compared to standard LS logic families. The Schottky clamping diodes reduce storage time for faster operation. Consider pin compatibility if replacing older 74194 variants in existing designs. Verify power dissipation limits within the target thermal environment.

Shift Registers Part Context

This part belongs to the SN74S family of high-speed Schottky logic devices. It shares functional compatibility with other 74194 series registers while offering improved speed characteristics. The device is widely used in legacy and modern digital design applications requiring reliable shift register functionality.

Shift Registers Replacement Considerations

SN74LS194N offers similar functionality with lower speed but higher noise immunity. SN74AS194N provides enhanced performance with advanced Schottky technology. SN74S194N is the direct equivalent for high-speed bipolar applications.