X9317WM8T1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics:
  • Non-volatile memory
  • 100 Taps
  • 10kΩ Resistance Range
  • 256 Resistive Steps
  • 3-Wire Serial Interface
  • Low Power Consumption
• Package: SOIC-8
• Essence: X9317WM8T1 is a digital potentiometer IC that provides a programmable resistance value. It is commonly used in electronic circuits where variable resistance is required.
• Packaging/Quantity: The X9317WM8T1 is available in a standard SOIC-8 package and is typically sold in reels of 2500 units.

Specifications

• Resistance Range: 10kΩ
• Number of Taps: 100
• Resolution: 256 steps
• Interface: 3-wire serial
• Operating Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Power Supply Current: 1μA (standby), 3mA (active)

Detailed Pin Configuration

The X9317WM8T1 has the following pin configuration:

| Pin Name | Description | |----------|-------------| | VCC | Power supply voltage input | | H | Terminal for high end of resistor | | W | Wiper terminal | | L | Terminal for low end of resistor | | CS | Chip select input | | SCK | Serial clock input | | SI | Serial data input | | SO | Serial data output |

Functional Features

• Non-volatile memory allows the X9317WM8T1 to retain its resistance value even when power is removed.
• The 3-wire serial interface enables easy integration with microcontrollers and other digital circuits.
• The 100 taps and 256-step resolution provide precise control over the resistance value.
• Low power consumption makes it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures resistance value retention. - Precise control over resistance with 256-step resolution. - Easy integration with digital circuits using the 3-wire serial interface. - Low power consumption extends battery life.

Disadvantages: - Limited resistance range of 10kΩ. - Not suitable for high-power applications.

Working Principles

The X9317WM8T1 utilizes a combination of resistive ladder network and CMOS switches to achieve variable resistance. The wiper terminal (W) can be moved digitally through the resistor array, changing the effective resistance between the high end (H) and low end (L) terminals. The resistance value is controlled by sending appropriate commands through the serial interface.

Detailed Application Field Plans

The X9317WM8T1 finds applications in various electronic systems where adjustable resistance is required. Some common application fields include:

1. Audio Systems: Used for volume control and tone adjustment.
2. Industrial Control: Provides variable resistance for calibration and control purposes.
3. Test and Measurement Equipment: Enables precise resistance settings for accurate measurements.
4. Consumer Electronics: Integrated into devices like TVs, monitors, and home appliances for user-adjustable settings.
5. Automotive Electronics: Used in automotive audio systems, climate control, and lighting controls.

Detailed and Complete Alternative Models

1. MCP401X: Digital potentiometer IC with similar specifications and package options.
2. AD840X: Another digital potentiometer IC offering higher resistance range and additional features.
3. MAX548X: Provides a wider resistance range and higher resolution compared to X9317WM8T1.

These alternative models offer similar functionality and can be considered as alternatives based on specific requirements.

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