SN74LS165ANE4

Shift Registers Overview

The SN74LS165ANE4 is an 8-bit parallel-load serial shift register from the Texas Instruments 74LS series. It converts parallel data into a serial stream via a single output line. The device features eight direct data inputs for parallel loading, controlled by a Shift/Load (SH/LD) pin. It includes gated clock inputs and complementary outputs. Electrical specifications include a supply voltage range of 4.75 V to 5.25 V, with a typical power dissipation of 90 mW. The component operates within a temperature range of 0°C to 70°C and utilizes a 16-pin PDIP package.

Shift Registers Feature Summary

• Parallel-to-serial data conversion capability
• Direct overriding load inputs enabled by low-level signal
• Gated clock inputs allowing clock-inhibit functionality

Shift Registers Applications

• Serial communication interface expansion
• Keyboard scanning matrix circuits
• Data acquisition systems requiring parallel input buffering

Shift Registers Procurement Notes

Verify that the specific ordering suffix 'E4' corresponds to lead-free packaging and RoHS compliance as defined in the manufacturer's documentation. Confirm the package type matches the required PCB footprint. Check current production status, as older variants may be obsolete or subject to change without notice.

Shift Registers Selection Notes

Select this component when designing TTL-compatible logic circuits requiring 8-bit parallel data capture. Ensure the system clock frequency remains within the specified limits for the LS family. Verify that the operating voltage stays strictly between 4.75 V and 5.25 V to maintain correct logic levels and timing parameters.

Shift Registers Part Context

This part belongs to the SN54/74LS165A family of parallel-load shift registers. It is functionally compatible with other devices in the 74LS series but distinct from standard 74165 models due to lower power consumption characteristics. The 'E4' suffix indicates environmental compliance attributes such as lead-free manufacturing.

Shift Registers Replacement Considerations

SN74LS165AN