74LS166 DIP-16 8-Bit Parallel-Load Shift Register IC (TTL, 5V)

Description -

The 74LS166 DIP is a TTL logic integrated circuit that functions as an 8-bit Parallel-Load Serial-Out (PISO) shift register in a 16-pin Dual Inline Package (DIP). It belongs to the 74LS Low Power Schottky logic family and is designed for parallel-to-serial data conversion, data buffering, and digital communication applications.

The device supports synchronous parallel loading, allowing 8-bit data to be loaded on the next rising edge of the clock when the Shift/Load input is LOW. It also features an asynchronous master clear for immediate reset and a clock inhibit input for controlled shifting, making it ideal for microprocessor interfacing, communication systems, and embedded designs.

Key Features -

• 8-bit Parallel-Load Serial-Out (PISO) shift register

• Synchronous parallel data loading

• Serial data output

• Asynchronous master clear

• Clock inhibit input

• Low Power Schottky technology

• TTL compatible logic levels

• Standard DIP-16 package

Specifications -

• Product type - TTL Logic IC

• IC Model - 74LS166

• Logic Function - 8-Bit Parallel-Load Shift Register

• Package type - DIP-16

• Logic family - 74LS TTL

• Operating voltage - 4.75V to 5.25V DC

• Parallel inputs - 8

• Serial output - 1

• Maximum clock frequency - 25MHz

• Typical propagation delay - 20ns

• High-level output current - -0.4mA

• Low-level output current - 8mA

• Operating temperature - 0C to 70C

Applications -

• Parallel-to-serial data conversion

• Digital communication systems

• Microcontroller interfacing

• Data buffering

• Embedded systems

• Industrial automation

• Peripheral expansion

• Telemetry systems