SN74HC4852D

series introduction

# SN74HC4852D Product Series Introduction

## 1. Overview
The SN74HC4852D belongs to the SN74HC series of integrated circuits, which are well - known for their high - speed CMOS technology. This particular product, the SN74HC4852D, is a dual 4 - input multiplexer with 3 - state outputs. It is designed to provide a flexible and efficient solution for signal routing and selection in various digital systems.

## 2. Key Features

### 2.1 High - Speed Operation
Based on high - speed CMOS technology, the SN74HC4852D offers fast propagation delays. This allows it to handle high - frequency signals effectively, making it suitable for applications where quick signal switching and processing are required. For example, in high - speed data communication systems, it can rapidly select between different data sources without introducing significant latency.

### 2.2 3 - State Outputs
The 3 - state outputs of the SN74HC4852D provide an additional level of flexibility. In the high - impedance state, the outputs effectively disconnect from the circuit, allowing multiple devices to share a common bus without interfering with each other. This is crucial in bus - based systems, such as in microprocessor - based systems where multiple peripheral devices need to communicate over a shared data bus.

### 2.3 Wide Supply Voltage Range
It can operate over a relatively wide supply voltage range, typically from 2V to 6V. This wide range makes it compatible with different power supply configurations, enabling it to be used in a variety of electronic devices with different power requirements. Whether it is a low - voltage battery - powered device or a standard 5V - powered system, the SN74HC4852D can function properly.

### 2.4 Low Power Consumption
CMOS technology inherently offers low power consumption characteristics. The SN74HC4852D consumes minimal power during normal operation, which is beneficial for battery - powered devices as it helps to extend the battery life. Additionally, in large - scale systems with multiple integrated circuits, the low power consumption reduces the overall power budget and heat dissipation requirements.

## 3. Functional Description

### 3.1 Multiplexing Function
The SN74HC4852D contains two independent 4 - input multiplexers. Each multiplexer has four data inputs (A0 - A3), two select inputs (S0 and S1), and one output (Y). The select inputs determine which of the four data inputs is routed to the output. For example, when S0 = 0 and S1 = 0, the data at input A0 is selected and appears at the output Y. The truth table for the multiplexer function clearly defines the relationship between the select inputs and the output selection.

### 3.2 3 - State Control
In addition to the normal multiplexing operation, the SN74HC4852D has a 3 - state enable input (OE). When the OE input is high, the outputs of the multiplexers are in the high - impedance state. When OE is low, the normal multiplexing operation is enabled, and the selected data appears at the outputs. This 3 - state control feature is essential for bus - sharing applications.

## 4. Applications

### 4.1 Data Communication Systems
In data communication systems, such as Ethernet switches or routers, the SN74HC4852D can be used to select between different data sources or paths. For example, it can be used to select between different input ports or different data streams based on certain criteria, such as priority or traffic load.

### 4.2 Microprocessor - Based Systems
In microprocessor - based

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Datasheets

• SN74HC4852
• PDF 2
• PDF 3

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