SN54LS91J

Shift Registers Overview

The SN54LS91J is an 8-bit serial-in serial-out shift register belonging to the Texas Instruments SN54LSxx series. It features complementary outputs and operates within a military-grade temperature range of -55 °C to 125 °C. The device utilizes a 14-lead ceramic dual in-line package (CDIP). It functions as a right-shift register with a maximum operating frequency of 10 MHz at nominal supply voltage.

Shift Registers Feature Summary

• Provides eight-bit data shifting capability via serial input and serial output
• Delivers both true and complemented output signals for flexible logic interfacing
• Engineered for reliable operation across extended military temperature environments

Shift Registers Applications

• Military aerospace electronic systems requiring high reliability
• Industrial control applications with extreme temperature exposure
• Data storage and transfer circuits in harsh environments

Shift Registers Procurement Notes

Verify the specific suffix 'J' confirms the ceramic dual in-line package construction. Confirm that the component meets all required military specifications for the intended operational environment. Ensure compatibility with existing system power supplies and signal levels before integration.

Shift Registers Selection Notes

Select this component when an 8-bit shift register is required for military or industrial applications. The LS series offers standard TTL compatibility. Consider the CDIP package for through-hole mounting requirements in ruggedized hardware designs.

Shift Registers Part Context

This part belongs to the SN54LSxx family, designed for high-speed low-power Schottky logic. The SN54 series denotes military qualification, distinguishing it from commercial SN74 variants. It serves as a fundamental building block for sequential logic circuits in professional electronics.

Shift Registers Replacement Considerations

The SN54LS91J is functionally equivalent to the SN54LS91. Verify package compatibility when substituting between these identifiers.