MCP4452T-104E/ST

Introduction

The MCP4452T-104E/ST is a digital potentiometer belonging to the category of integrated circuits. It is commonly used in electronic devices and systems for its unique characteristics and versatile applications.

Basic Information Overview

• Category: Integrated Circuits
• Use: Digital Potentiometer
• Characteristics: Programmable, Non-volatile, Low Power Consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides digitally controlled variable resistance
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Resolution: 8-bit
• Interface: I2C
• Operating Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Wiper Current: 1 mA
• Endurance: 1 Million Write Cycles

Detailed Pin Configuration

The MCP4452T-104E/ST features a total of 14 pins, including power supply, I2C interface, and resistor terminal connections. The pinout configuration is as follows: 1. VDD - Power Supply 2. A - Terminal A of Resistor 3. B - Wiper Terminal of Resistor 4. W - Terminal B of Resistor 5. VSS - Ground 6. SDA - I2C Serial Data 7. SCL - I2C Serial Clock 8. WP - Write Protect 9. A0 - Address Input 10. A1 - Address Input 11. A2 - Address Input 12. VSS - Ground 13. VDD - Power Supply 14. VSS - Ground

Functional Features

• Non-Volatile Memory: Retains wiper position settings even when powered off
• I2C Interface: Allows for easy digital control and communication with microcontrollers
• Low Power Consumption: Ideal for battery-powered applications
• Write Protect Function: Prevents accidental changes to wiper settings

Advantages and Disadvantages

Advantages

• Programmable resistance for precise circuit tuning
• Non-volatile memory ensures retention of settings
• Compact TSSOP package for space-constrained designs
• Low power consumption extends battery life

Disadvantages

• Limited resolution compared to higher bit digital potentiometers
• Restricted voltage and current handling capabilities

Working Principles

The MCP4452T-104E/ST operates by digitally controlling the resistance between its terminal connections using the I2C interface. When a new resistance value is written to the device, it adjusts the wiper position accordingly, allowing for precise tuning of the circuit without the need for mechanical adjustments.

Detailed Application Field Plans

The MCP4452T-104E/ST finds extensive use in various electronic applications, including: - Audio Equipment: Volume and tone control circuits - Instrumentation: Calibration and signal conditioning - Industrial Control Systems: Variable parameter adjustment - Consumer Electronics: Display brightness and contrast control

Detailed and Complete Alternative Models

• MCP4011T-103E/ST: 6-bit resolution digital potentiometer
• MCP4261T-104E/ST: 7-bit resolution digital potentiometer
• MCP4561T-104E/ST: 9-bit resolution digital potentiometer
• MCP4661T-104E/ST: 10-bit resolution digital potentiometer

In conclusion, the MCP4452T-104E/ST digital potentiometer offers a versatile and programmable solution for circuit tuning and control in various electronic applications, making it an essential component in modern electronic design.

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