CD4081 Integrated Circuit Inverter and Gate DIP‑14

The CD4081 is a quad 2‑input AND gate CMOS integrated circuit housed in a DIP‑14 package. Designed for robust logic design across a wide supply range, it offers engineers and hobbyists a reliable way to implement the AND logic function in digital systems. This device complements the standard CD4000‑series CMOS gates and is ideal for Arduino, Raspberry Pi, and other microcontroller projects that require dependable logic building blocks.

Key Features ✨

• High-voltage CMOS type with a 20 V rating (absolute maximum)
• Medium-speed operation with a typical propagation delay of 10 ns
• Ultra‑low power consumption, typically 1 µW (static)
• Standardized, symmetrical output characteristics for balanced rise/fall behavior
• Quiescent current 100% tested at 20 V
• Parametric ratings specified at 5 V, 10 V, and 15 V
• Maximum input current of 1 µA at 18 V (low leakage)

Technical Specifications 📐

• Product Type: Logic gate IC — Quad 2‑Input AND Gate (CMOS)
• Model: CD4081
• Package: DIP‑14 (through‑hole; breadboard‑friendly)
• Operating Temperature: −55°C to +125°C
• Supply Voltage Range (VDD): 3.0 V to 18 V (20 V absolute max)
• Number of Gates: 4
• Inputs per Gate: 2

Typical Applications 🔧

• Logic function implementation (AND gates) in digital systems
• Signal processing and conditioning modules
• Computers and computer peripherals
• Telecommunications equipment
• Industrial control systems and automation
• Consumer electronics and embedded products

Integration Tips for Arduino & Raspberry Pi 💡

• Operates from 3.0 V to 18 V, making it suitable for 3.3 V and 5 V CMOS logic systems.
• For Raspberry Pi (3.3 V) projects, power the IC at 3.3 V for direct logic‑level compatibility. Do not feed 5 V signals into Pi GPIOs.
• For Arduino (5 V) systems, powering the CD4081 at 5 V provides straightforward interfacing with CMOS‑level signals.
• Place a 0.1 µF decoupling capacitor close to VDD and VSS to minimize supply noise, especially in high‑speed or switching environments.
• Tie any unused inputs to a defined logic level (VSS or VDD) to avoid floating inputs and unnecessary power consumption.

Whether you’re building prototypes on a breadboard or integrating into production designs, the CD4081 delivers dependable CMOS AND gate performance with wide voltage tolerance, low static power, and consistent behavior—ideal for electronics components libraries, educational kits, and logic modules in microcontroller systems.