SN74LS194ADRE4

Shift Registers Overview

The SN74LS194ADRE4 is a 4-bit universal bidirectional shift register manufactured by Texas Instruments. It operates within a supply voltage range of 4.75V to 5.25V and supports a propagation delay of 26ns. The device features synchronous parallel loading, left/right shifting, and direct asynchronous clear inputs. It is housed in a 16-SOIC surface-mount package with a push-pull output configuration. The component functions as a single-element logic circuit within the 74LS series, designed for serial-to-parallel and parallel-to-serial data conversion tasks.

Shift Registers Feature Summary

• Supports four distinct operational modes including synchronous parallel load, right shift, left shift, and hold states.
• Features positive-edge triggered clocking for precise timing control during data transitions.
• Includes a direct override clear input to reset the register state independently of the clock signal.

Shift Registers Applications

• Serial-to-parallel and parallel-to-serial data conversion circuits
• Bidirectional data transfer between digital systems
• Implementation of arithmetic operations such as multiplication and division via bit shifting

Shift Registers Procurement Notes

Verify that the replacement part number matches the original specifications exactly. Confirm the manufacturer details and ensure the component meets RoHS3 compliance standards. Check the package type and pinout compatibility before integration into existing designs.

Shift Registers Selection Notes

Select this component when a 4-bit bidirectional shift register with LSTTL logic levels is required. Ensure the operating environment stays within the specified temperature range. Verify that the power supply voltage remains stable within the 4.75V to 5.25V window for reliable operation.

Shift Registers Part Context

This part belongs to the SN74LS194 family of universal shift registers. It is a specific variant of the SN74LS194AD, distinguished by its tape-and-reel packaging format suitable for automated assembly processes. The RE4 suffix indicates environmental compliance and manufacturing origin details consistent with Texas Instruments' standard product coding.

Shift Registers Replacement Considerations

SN74LS194AD is listed as a direct substitute. Verify pinout and electrical characteristics match before implementation.