Description
The CD4077 is a quad 2-input XNOR logic gate IC, designed using CMOS technology for low power consumption and wide operating voltage range. Each chip contains four independent XNOR gates, making it ideal for digital logic applications where equality comparison is needed.
An XNOR gate outputs HIGH (1) only when both its inputs are equal—either both HIGH or both LOW—making this IC useful in parity checking, digital comparison, data verification, and other binary logic functions.
Whether you’re working on Arduino logic circuits, digital design labs, or DIY electronics, the CD4077 provides reliable, noise-immune XNOR logic for your project.
✅ Key Features:
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Logic Type: XNOR (Exclusive-NOR) – outputs HIGH when inputs are equal
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Quad Gate Design: Includes 4 independent 2-input XNOR gates in a single package
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Wide Voltage Range: Operates from 3V to 15V, compatible with TTL and CMOS logic levels
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Low Power Consumption: CMOS construction ensures minimal current draw
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High Noise Immunity: Reliable operation in digital logic circuits
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Standard DIP-14 Package: Easy to insert in breadboards and prototyping boards
Technical Specifications:
| Parameter | Value |
|---|---|
| Logic Type | 2-Input XNOR Gate (4 gates) |
| Package | DIP-14 (Dual Inline Package) |
| Input Pins | A1–A4, B1–B4 |
| Output Pins | Q1–Q4 |
| Operating Voltage | 3V to 15V |
| Input Type | CMOS |
| Output Type | CMOS |
| Supply Voltage Pin | VDD (Pin 14) |
| Ground Pin | GND (Pin 7) |
| Operating Temp Range | -40°C to +85°C (typical) |
Truth Table for XNOR Gate:
| Input A | Input B | Output (A XNOR B) |
|---|---|---|
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
Package Includes:
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✅ 1 × CD4077 Quad 2-Input XNOR Gate IC (DIP-14)
⚙️ Applications:
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✅ Logic comparators and equality checkers
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✅ Digital signal processing
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✅ Parity generation and checking
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✅ Data integrity validation
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✅ Arduino and microcontroller interfacing
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✅ Basic electronics and logic gate learning kits
❓ FAQs:
Q1: What is the output behavior of the CD4077?
It gives a HIGH output only when both inputs are equal (either both HIGH or both LOW).
Q2: Can I use this with Arduino or 5V logic systems?
✅ Yes! The CD4077 works from 3V to 15V, so it’s compatible with 3.3V and 5V systems.
Q3: What’s the difference between XOR and XNOR?
❌ XOR outputs HIGH when inputs are different;
✔️ XNOR outputs HIGH when inputs are same.
Q4: Is it suitable for breadboard use?
✅ Yes, the 14-pin DIP package is perfect for prototyping and breadboard use.
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Buy CD4077 IC – Quad XNOR Gate | CMOS Logic Gate for Arduino, DIY Electronics – Robotech Shop BD
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CD4077 IC with four 2-input XNOR gates – ideal for digital logic, parity checking & Arduino projects. 3V–15V CMOS logic, DIP-14 package. Buy now at RobotechShop.com.
