74LS190 Integrated Circuit

The 74LS190 Integrated Circuit (IC) is a DIP-16, low-power Schottky (LS-TTL) device designed for fast, reliable counting in digital electronics. As a 4-bit up/down counter with complementary outputs and a direct clear input, it is a dependable building block for digital systems, microcontroller projects, and educational setups. Ideal for engineers and hobbyists working with Arduino, Raspberry Pi (with level shifting), and other electronics components and modules.

✨ Key Features

• ⚡ High-speed operation for responsive digital counting
• 🔋 Low-power Schottky technology (LS-TTL) for efficient performance
• 🔁 4-bit up/down binary counter functionality for flexible direction control
• 🔄 Complementary outputs (active-high and active-low) for easy interfacing
• 🧼 Direct clear input for immediate asynchronous reset

📐 Technical Specifications

• Package Type: DIP-16 (through-hole, breadboard-friendly)
• Operating Voltage: 4.75 V to 5.25 V (standard 5 V TTL)
• Operating Temperature: 0°C to 70°C
• Propagation Delay Time: 24 ns (typical)
• Power Dissipation: 200 mW (max)

🧩 Typical Applications

The 74LS190 DIP-16 IC is adaptable for a wide variety of projects and systems, including:

• 🖥️ Digital systems and logic design
• ⏱️ Counting systems and pulse counters
• 🧠 Computers and microprocessors (legacy TTL logic)
• 📡 Communication systems and timing circuits
• 🏭 Industrial control systems and automation

🔎 Why Choose This IC?

• Proven LS-TTL reliability in educational, prototyping, and production environments
• DIP-16 package simplifies breadboard testing and module integration
• Excellent for learning and implementing digital counters, state machines, and timing circuits