SN74LS165AN

Shift Registers Overview

The SN74LS165AN is an 8-bit parallel-in, serial-out shift register manufactured by Texas Instruments. It belongs to the 74LS logic series and utilizes bipolar technology. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of 25 ns. It features a single circuit configuration with nine input lines and is housed in a 16-PDIP package. The component functions reliably across an operating temperature range from 0°C to +70°C.

Shift Registers Feature Summary

• Provides parallel-to-serial data conversion for expanding digital input capabilities
• Supports synchronous serial clocking for precise timing control
• Includes dedicated load control for capturing parallel data inputs

Shift Registers Applications

• Microcontroller systems requiring expansion of limited input pins
• Keyboard matrix scanning circuits
• Status monitoring of multiple discrete switches or sensors

Shift Registers Procurement Notes

Verify the specific suffix 'AN' corresponds to the 16-pin PDIP package when sourcing. Confirm RoHS compliance status as per current manufacturer documentation. Ensure the supplier provides official datasheets matching the SN74LS165 part number to validate electrical characteristics and pinout compatibility before integration into designs.

Shift Registers Selection Notes

Select this component when bipolar LS logic speed is required for parallel-to-serial conversion. The through-hole PDIP package suits prototyping and legacy board designs. Verify that the 25 ns propagation delay meets system timing requirements. Consider alternative packages if surface-mount assembly is necessary for production volumes.

Shift Registers Part Context

This device is part of the standard 74LS165 family of shift registers. It serves as a fundamental building block for interfacing parallel data sources with serial communication protocols. The SN74LS165AN variant specifically denotes the axial leaded DIP packaging option provided by Texas Instruments for general-purpose logic applications.

Shift Registers Replacement Considerations

SN74LS165N: Identical function in a different package variant.