DM74LS166WMX

Shift Registers Overview

The DM74LS166WMX is an 8-bit serial-in/parallel-out shift register belonging to the LS logic family. It features parallel data inputs, a serial input, and a clock enable function. The device operates within a supply voltage range of up to 5.25 V and exhibits a propagation delay of 41 ns. It is housed in a 16-pin SOIC package designed for surface mount technology. The component supports a standard operating temperature range from 0°C to +70°C.

Shift Registers Feature Summary

• Provides eight parallel data outputs for simultaneous data access
• Supports serial data shifting with dedicated input and clock control
• Includes a parallel load capability for direct data entry

Shift Registers Applications

• Data storage in digital systems
• Serial-to-parallel conversion interfaces
• Counter applications requiring shift register functionality

Shift Registers Procurement Notes

Verify the specific manufacturer source, as this part number appears associated with both Fairchild Semiconductor and onsemi due to corporate acquisition history. Confirm RoHS compliance status directly with the supplier, as listed attributes may vary by production batch or region. Ensure the SOIC-16 package matches your PCB footprint requirements before ordering.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with parallel output is required for low-speed logic applications. The LS series offers standard speed characteristics suitable for general-purpose digital circuits. Verify that the 5V logic level compatibility aligns with the rest of the system design.

Shift Registers Part Context

This device is part of the widely used 74LSxx series of bipolar logic integrated circuits. The 'DM' prefix typically denotes a commercial grade variant. As an 8-bit shift register, it serves fundamental roles in sequential logic design, distinct from memory latches or bus transceivers found in other logic families.

Shift Registers Replacement Considerations

Check for equivalents such as MC74LS166 or SN74LS166. Verify pinout compatibility and electrical specifications against the original datasheet before substitution.