HEF4067BPN

series introduction

# HEF4067BPN Product Series Introduction

## 1. Overview
The HEF4067BPN is a highly versatile and widely - used integrated circuit belonging to the analog multiplexer/demultiplexer product family. Manufactured to meet the demanding requirements of various electronic applications, it offers a reliable and efficient solution for signal routing and selection.

## 2. Key Features

### 2.1 Multiplexing and Demultiplexing Capabilities
- **16 - Channel Operation**: The HEF4067BPN features 16 input/output channels. This allows it to handle multiple signals simultaneously, making it suitable for applications where a large number of signals need to be managed. For example, in a data acquisition system, it can select one out of 16 different sensor signals for further processing.
- **Bidirectional Signal Flow**: It supports bidirectional signal transfer, which means that it can be used not only as a multiplexer (selecting one input from multiple inputs and routing it to a single output) but also as a demultiplexer (taking a single input and distributing it to one of the 16 outputs). This flexibility makes it adaptable to different circuit configurations.

### 2.2 Low On - Resistance
- The on - resistance of the HEF4067BPN is relatively low. This characteristic is crucial as it minimizes signal attenuation and distortion when the switch is in the on state. In audio applications, for instance, low on - resistance ensures that the audio signal passes through the switch with minimal loss of quality, maintaining the fidelity of the sound.

### 2.3 Wide Supply Voltage Range
- It can operate over a wide supply voltage range, typically from 3V to 18V. This wide range provides designers with the flexibility to integrate the HEF4067BPN into different power supply systems. Whether it is a low - voltage battery - powered device or a higher - voltage industrial application, the chip can function effectively.

### 2.4 CMOS Technology
- The HEF4067BPN is based on Complementary Metal - Oxide - Semiconductor (CMOS) technology. CMOS technology offers several advantages, including low power consumption, high input impedance, and good noise immunity. Low power consumption is especially important in portable devices, as it helps to extend the battery life. High input impedance reduces the loading effect on the input signals, ensuring accurate signal transfer.

## 3. Pin Configuration
The HEF4067BPN has a standard pinout that is designed for easy integration into printed circuit boards (PCBs).
- **Address Pins (A0 - A3)**: These four pins are used to select the specific channel. By applying different binary combinations to these pins, the user can choose which of the 16 channels is connected to the common terminal. For example, if A0 = 0, A1 = 0, A2 = 0, and A3 = 0, the first channel is selected.
- **Common Terminal (COM)**: This is the single input/output terminal that is connected to the selected channel. When used as a multiplexer, the selected input signal is routed to the COM terminal. When used as a demultiplexer, the input signal at the COM terminal is sent to the selected output channel.
- **Enable Pin (EN)**: The enable pin is used to control the operation of the multiplexer/demultiplexer. When the EN pin is set to a low logic level, the device is enabled, and the channel selection based on the address pins takes place. When the EN pin is high, the device is disabled, and all channels are disconnected from the common terminal.

## 4. Applications

### 4.1 Test and Measurement Equipment
- In

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