SN74LV166APW

Shift Registers Overview

The SN74LV166APW is an 8-bit parallel-load serial-out shift register manufactured by Texas Instruments. It belongs to the LV (Low-Voltage CMOS) logic family and operates within a supply voltage range of 2 V to 5.5 V. The device supports serial/parallel-to-serial data conversion with asynchronous reset functionality. It is housed in a 16-pin SOIC surface-mount package and is rated for operation across an industrial temperature range from -40°C to +85°C.

Shift Registers Feature Summary

• Supports 8-bit parallel data loading and serial output shifting
• Operates on low-voltage CMOS technology compatible with 2V to 5.5V supplies
• Features asynchronous reset capability for immediate state clearing

Shift Registers Applications

• Data acquisition systems requiring parallel-to-serial conversion
• Input expansion for microcontroller-based embedded designs
• Digital signal processing interfaces handling serial data streams

Shift Registers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your target market. Confirm availability status directly with authorized distributors as production lifecycles may change without prior notice.

Shift Registers Selection Notes

Select this component when designing circuits that require low-power consumption and wide voltage tolerance. The LV series offers improved noise immunity compared to standard TTL logic while maintaining compatibility with 3.3V and 5V systems. Consider the SOIC-16 footprint constraints during PCB layout planning.

Shift Registers Part Context

This part is part of the broader SN74LV166A family of shift registers. It shares functional similarities with other parallel-load devices but distinguishes itself through its specific low-voltage CMOS characteristics and packaging options provided by Texas Instruments.

Shift Registers Replacement Considerations

Compatible substitutes include CD74HCT166E and SN74HC166PW, though voltage levels and speed characteristics differ. Verify pinout compatibility and logic thresholds before implementation.