X9317TM8T1

Product Overview

• Category: Electronic component
• Use: Digital potentiometer
• Characteristics: Non-volatile, 100-tap, 10kΩ resistance range
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Programmable resistor with memory
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Resistance Range: 10kΩ
• Number of Taps: 100
• Supply Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• End-to-End Resistance Tolerance: ±20%
• Standby Current: 1µA (max)
• Wiper Resistance: 75Ω (typ)
• Resolution: 256 steps
• Non-Volatile Memory: Stores wiper position during power-off
• Serial Interface: 3-wire SPI (Serial Peripheral Interface)

Detailed Pin Configuration

The X9317TM8T1 has the following pin configuration:

1. VCC: Supply voltage input
2. H: High logic level input for SPI communication
3. CS: Chip select input for SPI communication
4. SCLK: Serial clock input for SPI communication
5. SI: Serial data input for SPI communication
6. SO: Serial data output for SPI communication
7. WP: Write protect input (optional)
8. GND: Ground reference

Functional Features

• Digital Potentiometer: Acts as a variable resistor controlled digitally
• Non-Volatile Memory: Retains wiper position even when power is off
• SPI Interface: Allows easy communication with microcontrollers
• Wide Operating Voltage Range: Can be used in various electronic systems
• Low Standby Current: Minimizes power consumption in idle state
• High Resolution: Provides precise control over resistance value

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures wiper position retention - Wide operating voltage range allows compatibility with different systems - High resolution provides fine-grained control over resistance - Low standby current minimizes power consumption

Disadvantages: - End-to-end resistance tolerance of ±20% may limit precision in some applications - Limited number of taps (100) compared to higher-end digital potentiometers

Working Principles

The X9317TM8T1 is based on the working principle of a digital potentiometer. It consists of a resistive ladder network and a wiper that moves along the ladder, effectively changing the resistance between the wiper terminal and either end terminal. The wiper position is controlled digitally through the SPI interface.

When a specific resistance value is desired, the microcontroller sends commands via the SPI interface to adjust the wiper position. The non-volatile memory ensures that the wiper position is retained even when power is off, allowing the device to resume operation from the previous setting upon power-up.

Detailed Application Field Plans

The X9317TM8T1 finds applications in various electronic systems where precise resistance adjustment is required. Some potential application fields include:

1. Audio Systems: Volume control, tone adjustment
2. Industrial Automation: Calibration, feedback control
3. Test and Measurement Equipment: Signal conditioning, calibration
4. Automotive Electronics: Sensor calibration, climate control
5. Medical Devices: Precision control, calibration

Detailed and Complete Alternative Models

1. X9C103S: 10kΩ, 100-tap digital potentiometer with 3-wire SPI interface
2. MCP4131: 10kΩ, 256-tap digital potentiometer with 3-wire SPI interface
3. AD8403: 10kΩ, 256-tap digital potentiometer with I2C interface
4. MAX5481: 10kΩ, 256-tap digital potentiometer with 2-wire serial interface
5. CAT5114: 10kΩ, 100-tap digital potentiometer with 3-wire SPI interface

These alternative models offer similar functionality and can be considered based on specific requirements and compatibility with the system.

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