integrated-circuits-pins-guide

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integrated-circuits-pins-guide

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A concise reference guide to IC pin configurations for Digital Logic Design, covering essential logic gates, decoders, multiplexers, flip-flops, and 74xx-series ICs.

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A guide to Integrated Circuits (IC's).pdf
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**Complete Pinout & Reference Guide for Digital Logic ICs**

*Logic Gates · Decoders · Multiplexers · Flip-Flops*

![](https://img.shields.io/badge/DLD-Lab%20Reference-2563eb?style=for-the-badge)
![](https://img.shields.io/badge/Logic%20Gates-a34a?style=for-the-badge)
![](https://img.shields.io/badge/FAST%20NUCES-Reference-dc2626?style=for-the-badge)

</div>

---

## 📄 Reference PDF

| File | Pages |
|------|-------|
| [A Guide to Integrated Circuits (ICs).pdf](./A_guide_to_Integrated_Circuits__IC_s_.pdf) | 2 pages — complete pinout diagrams |

> 💡 GitHub can't preview PDFs — click **Download** to open locally.

---

## 🧠 What is an IC?

An **Integrated Circuit (IC)** is a small chip that contains electronic components
(transistors, resistors, etc.) built into a single package.
In **Digital Logic Design (DLD)**, ICs are used to perform logical operations
on binary inputs (0 and 1).

---

## 🔌 ICs Covered

### 🔷 Logic Gates
| IC | Type | Description |
|----|------|-------------|
| **7400** | NAND | Quad 2-Input NAND Gate |
| **7402** | NOR | Quad 2-Input NOR Gate |
| **7404** | NOT | Hex Inverter |
| **7408** | AND | Quad 2-Input AND Gate |
| **7409** | AND | Quad 2-Input AND Gate (Open Collector) |
| **7410** | NAND | Triple 3-Input NAND Gate |
| **7420** | NAND | Dual 4-Input NAND Gate |
| **7432** | OR | Quad 2-Input OR Gate |
| **7486** | XOR | Quad 2-Input XOR Gate |

### 🔷 Decoders
| IC | Type | Description |
|----|------|-------------|
| **74LS138** | Decoder | 3-to-8 Line Decoder |
| **74LS139** | Decoder | Dual 2-to-4 Line Decoder |

### 🔷 Multiplexers
| IC | Type | Description |
|----|------|-------------|
| **74LS157** | MUX | 2-to-1 Multiplexer |
| **74LS153** | MUX | Dual 4-to-1 Line Multiplexer |
| **74LS151** | MUX | 8-to-1 Line Multiplexer |

### 🔷 Flip-Flops
| IC | Type | Description |
|----|------|-------------|
| **7474** | D FF | Dual D-Type Flip-Flop |
| **LS76A** | JK FF | Dual JK Flip-Flop |

---

## 💡 Quick Reference
VCC  → Power supply pin (+5V)\
GND  → Ground (0V)\
A, B → Input pins\
Y    → Output pin\
CLK  → Clock input (Flip-Flops)\
CLR  → Clear/Reset pin\
PR   → Preset pin

---

## 📌 Note

Shared as DLD lab reference material for **FAST NUCES** students.
Useful for identifying IC pins during breadboard experiments.

---

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