SN74AS194NSR

Shift Registers Overview

The SN74AS194NSR is a single shift register from the Texas Instruments AS logic series, housed in a 20-SOIC package. It features four-bit parallel data inputs and serial input/output capabilities for bidirectional shifting operations. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a clock frequency up to 60 MHz. It includes independent clear and load control inputs to manage data states efficiently.

Shift Registers Feature Summary

• Supports bidirectional serial shifting with dedicated high and low serial input pins
• Provides four-bit parallel data loading capability via distinct input lines
• Includes asynchronous clear function to reset internal flip-flop states immediately

Shift Registers Applications

• Data storage and transfer in digital communication systems
• Shift register implementations in microprocessor interface circuits
• Parallel-to-serial and serial-to-parallel conversion tasks

Shift Registers Procurement Notes

Verify the specific suffix 'NSR' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with existing board layouts regarding pin assignments and thermal requirements before finalizing procurement decisions.

Shift Registers Selection Notes

Select this component when high-speed shifting performance is required within standard 5V logic environments. Compare propagation delays and power consumption against other AS series variants to ensure optimal system efficiency and signal integrity for the intended application speed.

Shift Registers Part Context

This part belongs to the Texas Instruments SN74AS family, known for advanced Schottky technology offering high speed with reduced power dissipation compared to earlier LS series. The SN74AS194 specifically addresses applications requiring reliable four-bit shift register functionality with parallel load options.

Shift Registers Replacement Considerations

Check for SN74AS194N (DIP package) or SN74ALS194 variants if pin-compatible alternatives are needed. Verify electrical characteristics and package dimensions match the original design constraints before substituting.