SN74LS628

series introduction

# SN74LS628 Product Series Introduction

## 1. Overview
The SN74LS628 is a part of the well - known 74LS (Low - Power Schottky) logic family, which is widely recognized in the electronics industry for its reliability, performance, and cost - effectiveness. This product series is designed to perform specific digital logic functions, making it an essential component in a variety of electronic systems.

## 2. Key Features

### 2.1 Electrical Characteristics
- **Low Power Consumption**: The LS (Low - Power Schottky) technology used in the SN74LS628 significantly reduces power dissipation compared to standard TTL (Transistor - Transistor Logic) devices. This makes it suitable for battery - powered applications or systems where power efficiency is a critical concern.
- **High - Speed Operation**: Despite its low - power design, the SN74LS628 can operate at relatively high speeds. It has fast propagation delays, allowing it to handle high - frequency digital signals effectively. This makes it suitable for applications that require quick data processing and signal transmission.
- **Wide Operating Voltage Range**: The device can typically operate within a voltage range of 4.75V to 5.25V, which provides some flexibility in power supply design. It can tolerate small variations in the power supply voltage without significant degradation in performance.

### 2.2 Logic Functionality
- **Specific Logic Operations**: The SN74LS628 is engineered to perform a particular set of digital logic operations. While the exact logic function depends on its internal circuit design, it is often used in applications where complex logic combinations need to be implemented. For example, it can be used in arithmetic circuits, control units, and data processing systems to perform tasks such as signal decoding, encoding, or multiplexing.
- **Multiple Inputs and Outputs**: The product series usually comes with multiple input and output pins. These pins allow the device to interface with other digital components in a system. The number and configuration of the pins are carefully designed to meet the requirements of different applications, enabling seamless integration into larger electronic circuits.

## 3. Package Options
The SN74LS628 is available in various package types, which offer different advantages depending on the application requirements:
- **DIP (Dual In - Line Package)**: This is a traditional and widely used package type. DIP packages are easy to handle and solder onto printed circuit boards (PCBs). They are suitable for prototyping and small - scale production, as they can be easily inserted into breadboards or soldered by hand.
- **SOIC (Small Outline Integrated Circuit)**: SOIC packages are more compact than DIP packages, which makes them ideal for applications where space is limited. They are commonly used in high - density PCBs, such as those found in portable electronic devices. The smaller size also reduces the overall weight of the system.

## 4. Applications

### 4.1 Industrial Control Systems
In industrial control systems, the SN74LS628 can be used to perform logic operations for process control. For example, it can be used to monitor and control the operation of motors, sensors, and other industrial equipment. Its low - power consumption and high - speed operation make it suitable for real - time control applications, where quick decision - making and reliable performance are crucial.

### 4.2 Consumer Electronics
In consumer electronics, such as televisions, audio systems, and gaming consoles, the SN74LS628 can be used for signal processing and control functions. It can help in decoding digital signals, managing user inputs, and controlling the operation of different components within the device.

### 4.3 Communication Systems
In communication systems, the device can be used for data encoding and decoding

Images for reference

14-SOIC

14-TSSOPa

14-DIP

Datasheets

• SN54LS624-29, SN74LS624-29
• SN(54,74)LS(624-629)
• PDF 3

Partlist