74LS95 Shift Register Integrated Circuit
The 74LS95 is a 4-bit parallel-in/serial-out (PISO) shift register in a DIP-14 package, designed for high-speed digital logic applications. On each clock event, data is shifted toward the serial output, while four jam (parallel) inputs allow direct loading of data lines. With direct overriding clear, clock, and clock inhibit inputs, this LS-TTL device offers precise control in timing-critical systems. Ideal for use with microcontroller-based projects, test fixtures, and embedded electronics components.
⭐ Key Features
- 🔧 4-bit PISO architecture with four jam (parallel) inputs for fast data loading
- ⚡ High-speed data transfer suitable for digital timing chains and logic pipelines
- 🔋 Low power consumption (LS-TTL family)
- 🔌 Wide operating voltage range: compatible with regulated 5 V systems
- 🛡️ High noise immunity for robust operation in mixed-signal environments
- ⏱️ Direct overriding control inputs: clear, clock, and clock inhibit
- 🧩 DIP-14 package — breadboard-friendly and easy to integrate into modules and prototypes
📐 Technical Specifications
- Package Type: DIP-14
- Operating Voltage: 4.75 V to 5.25 V
- Operating Temperature: -55°C to 125°C
- Propagation Delay Time: 20 ns
- Power Dissipation: 400 mW
🧠 Overview for Engineers & Makers
This device streamlines serial-to-parallel data conversion and timing expansion in digital electronics. Use the jam inputs to load a parallel word, then shift it out via the serial output under clock control. The clock inhibit input allows pausing the shift operation without altering state, while clear enables immediate reset. Its LS-TTL characteristics make it a reliable choice for 5 V logic systems and classic microcontroller designs.
🔌 Microcontroller Integration
- ✅ Works seamlessly with Arduino and other 5 V microcontrollers
- ⚠️ For Raspberry Pi (3.3 V logic), use a level shifter to interface safely with the LS-TTL inputs
- 🔧 Add a 0.1 µF decoupling capacitor close to VCC for stable operation
📦 Potential Applications
- 🔄 Serial-to-parallel data conversion in digital systems
- 📡 Remote control and communication interfaces
- 🟩 LED matrix displays and scanning circuits
- 🔢 Binary counters and frequency dividers
- 🗄️ Memory buffering and temporary data storage
🔍 Why Choose the 74LS95?
- Engineered for reliable timing with 20 ns propagation delay
- Optimized for 5 V TTL systems common in legacy and educational platforms
- Perfect for electronics components kits, lab training, and embedded modules
Whether you’re extending I/O on an Arduino, building a display driver, or crafting a compact data path for a microcontroller project, the 74LS95 Shift Register IC delivers fast, deterministic performance with straightforward control.
