SN74AS194NS

Shift Registers Overview

The SN74AS194NS is a single 4-bit universal shift register from the Texas Instruments 74AS series. It operates on a 4.5V to 5.5V supply voltage and features push-pull outputs. The device supports synchronous parallel loading, serial shifting in both directions, and parallel output. It utilizes positive-edge-triggered clocking and includes an asynchronous clear input. The component is housed in a 16-pin DIP package with a standard 0.300-inch (7.62mm) width.

Shift Registers Feature Summary

• Supports four distinct operational modes including synchronous parallel load, right-shift, left-shift, and no-change states.

Shift Registers Applications

• Data storage applications requiring bidirectional shift capabilities
• Parallel-to-serial and serial-to-parallel data conversion circuits
• Digital signal processing systems utilizing high-speed AS logic

Shift Registers Procurement Notes

Verify the specific suffix 'N' confirms the through-hole PDIP package variant rather than surface-mount options. Confirm RoHS compliance status as it may vary by manufacturing date or region. Ensure the order quantity aligns with tube packaging standards for this specific package type. Validate that the 74AS speed class meets system timing requirements compared to slower alternatives.

Shift Registers Selection Notes

Select this component when high-speed operation is required alongside bidirectional shift functionality. The 74AS series offers faster propagation delays than standard LS counterparts but consumes more power. Verify that the 16-pin DIP form factor fits the target PCB layout constraints. Consider the higher current drive capability of push-pull outputs for direct interfacing with loads.

Shift Registers Part Context

This part belongs to the Texas Instruments 74AS (Advanced Schottky) logic family, known for superior speed-performance-power product indices. The 74AS194 is a specialized shift register variant within this high-speed portfolio. It serves as a bridge between older TTL designs and modern high-speed digital requirements, offering robust performance in industrial and commercial environments.

Shift Registers Replacement Considerations

SN74LS194N: Offers similar functionality but with significantly lower speed and power consumption characteristics. SN74ALS194N: Provides a balance between the speed of the AS series and the lower power of the ALS series. Verify pinout compatibility and electrical specifications before substituting these variants.