SN74LS194AD

Shift Registers Overview

The SN74LS194AD is a 4-bit bidirectional universal shift register manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 26 ns. The device supports serial/parallel to parallel counting sequences and includes one circuit with four bits per element. It utilizes bipolar logic type and is housed in a 16-SOIC package with a width of 3.90 mm. The component functions as a general-purpose shift register with push-pull outputs.

Shift Registers Feature Summary

• Supports bidirectional shifting operations for data processing applications
• Enables synchronous parallel loading of data inputs
• Features direct asynchronous clear functionality for immediate reset

Shift Registers Applications

• Data storage and transfer systems
• Parallel-to-serial conversion circuits
• Digital signal processing interfaces

Shift Registers Procurement Notes

Verify the specific suffix 'AD' indicates the SOIC surface-mount package variant rather than the PDIP through-hole version. Confirm RoHS compliance status and check for active manufacturing status or obsolescence notices from Texas Instruments before finalizing procurement plans.

Shift Registers Selection Notes

Select this component when a 4-bit bidirectional shift register with low-power Schottky characteristics is required. Ensure the design accommodates the 16-SOIC footprint and that the operating temperature range of 0°C to 70°C meets environmental requirements. Verify power supply stability within the specified voltage limits.

Shift Registers Part Context

This part belongs to the SN74LS194A family of 4-bit bidirectional universal shift registers. It shares functional compatibility with other LS series devices while offering specific packaging options. The SN74LS194AD variant specifically denotes the surface-mount SOIC configuration, distinguishing it from through-hole alternatives like the SN74LS194AN.

Shift Registers Replacement Considerations

SN74LS194ADRE4 is listed as a discontinued direct substitute.