X9313UST1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Non-volatile, 32-Tap, Up/Down Control Interface
• Package: SOT-23-8
• Essence: X9313UST1 is a digital potentiometer IC that provides non-volatile memory storage for its settings. It offers 32-tap resolution and can be controlled using an up/down interface.
• Packaging/Quantity: The X9313UST1 is available in a SOT-23-8 package and is typically sold in reels of 3000 units.

Specifications

• Resolution: 32 taps
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• End-to-End Resistance: 10kΩ
• Standby Current: 1µA (max)
• Wiper Resistance: 70Ω (typ)

Pin Configuration

The X9313UST1 has the following pin configuration:

```

---

| | --| VCC GND |-- Power Supply Pins --| UP DN |-- Up/Down Control Interface Pins --| CS H/L |-- Chip Select Input Pin --| U/D H/L |-- Up/Down Control Input Pin --| INC H/L |-- Increment Control Input Pin --| A0 H/L |-- Address Input Pin --| W OUT |-- Wiper Terminal and Output Pin |___________| ```

Functional Features

• Non-volatile memory storage allows the X9313UST1 to retain its settings even when power is removed.
• 32-tap resolution provides precise control over the resistance value.
• Up/Down control interface simplifies the adjustment process.
• Low standby current ensures minimal power consumption when not in use.

Advantages and Disadvantages

Advantages: - Non-volatile memory storage eliminates the need for recalibration after power cycles. - Precise 32-tap resolution allows for fine-grained resistance adjustments. - Up/Down control interface provides user-friendly operation. - Low standby current reduces power consumption.

Disadvantages: - Limited end-to-end resistance of 10kΩ may not be suitable for all applications. - SOT-23-8 package may require additional space on the PCB.

Working Principles

The X9313UST1 is based on the concept of a digital potentiometer. It consists of a resistive ladder network and a wiper terminal. The position of the wiper determines the effective resistance between the wiper terminal and one of the end terminals. By controlling the position of the wiper digitally, the resistance value can be adjusted.

The non-volatile memory storage in the X9313UST1 ensures that the resistance settings are retained even when power is removed. This feature allows for consistent performance without the need for recalibration.

Detailed Application Field Plans

The X9313UST1 can be used in various applications where precise resistance adjustments are required. Some potential application fields include:

1. Audio Equipment: The X9313UST1 can be used to control volume levels or tone adjustments in audio amplifiers or mixers.
2. Industrial Control Systems: It can be utilized in industrial control systems to adjust parameters such as motor speed or sensor calibration.
3. Test and Measurement Instruments: The X9313UST1 can be integrated into test equipment to provide programmable resistance values for testing purposes.
4. Consumer Electronics: It can be employed in devices like TVs, set-top boxes, or gaming consoles to control brightness, contrast, or other settings.

Detailed and Complete Alternative Models

1. X9312WP: Similar to X9313UST1, but with a different package (SOIC-8).
2. X9C103SIZ: Provides 100-tap resolution instead of 32-tap.
3. MCP401X: Offers a wider range of resistance values and additional features like an I2C interface.

These alternative models provide similar functionality to the X9313UST1 but may have different specifications or package options to suit specific application requirements.

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