74LS164 DIP-14 Shift Register Integrated Circuit

The 74LS164 is a high-quality, 8-bit serial-in/parallel-out (SIPO) shift register in a DIP-14 through-hole package. Designed with LS-TTL technology, it delivers fast propagation and low power consumption at a stable 5 V supply. Its asynchronous (direct-override) clear and edge-triggered clock make it ideal for precise digital timing and expansion tasks in Arduino, Raspberry Pi (with level considerations), and other microcontroller projects, as well as general electronics components and modules work.

⚙️ Main Features

• 8-bit serial-in/parallel-out architecture for simple expansion of output lines
• High-speed data shifting and reliable timing for digital logic systems
• Low power usage with LS-TTL technology at 5 V
• Asynchronous master clear (direct override) of clock and serial data inputs for rapid reset
• Edge-triggered clocking for precise, glitch-free operation

📐 Technical Specifications

• Product Category: Shift Register Integrated Circuit
• Model: 74LS164
• Package Format: DIP-14 (through-hole)
• Operating Voltage: 4.75 V to 5.25 V
• Operating Temperature: -40°C to 85°C
• Propagation Delay Time: 24 ns

🚀 Typical Applications

The 74LS164 DIP-14 is versatile and suited for a wide range of digital designs and embedded systems:

• Serial-to-parallel data conversion for GPIO expansion in Arduino, Raspberry Pi, and other microcontroller projects
• Sequence generation and digital timing circuits
• Control systems and simple state machines
• LED matrix displays and multiplexed LED driving
• Memory address generation and bus expansion

🔧 Integration Tips

• Power the device at 5 V (TTL); ensure proper grounding and decoupling (e.g., a 0.1 µF capacitor near VCC).
• Compatible with many 3.3 V microcontrollers on inputs (check logic-high thresholds), but keep voltage levels in mind when interfacing with Raspberry Pi systems.
• Use the asynchronous clear for immediate reset of all outputs regardless of clock state.