X9241AMST1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Non-volatile, 10-bit resolution, 100kΩ resistance range
• Package: Surface Mount Technology (SMT)
• Essence: Provides digital control of resistance in electronic circuits
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Resolution: 10-bit
• Resistance Range: 100kΩ
• Number of Channels: 1
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The X9241AMST1 has the following pin configuration:

1. VCC: Power supply voltage
2. GND: Ground reference
3. CS: Chip select input for SPI communication
4. SCLK: Serial clock input for SPI communication
5. SDI: Serial data input for SPI communication
6. SDO: Serial data output for SPI communication
7. U/D: Up/Down control input for changing resistance value
8. R: Terminal connected to the resistor element
9. W: Terminal connected to the wiper of the potentiometer

Functional Features

• Non-volatile memory: Retains resistance settings even when power is removed
• Digital control: Allows precise adjustment of resistance using a microcontroller
• Low power consumption: Ideal for battery-powered applications
• Wide operating voltage range: Can be used in various electronic systems
• High resolution: Provides fine-grained adjustment of resistance

Advantages

• Easy integration: Compact surface mount package simplifies PCB design
• Cost-effective: Eliminates the need for mechanical potentiometers
• Reliable performance: Non-volatile memory ensures consistent resistance settings
• Flexible control: SPI interface allows easy interfacing with microcontrollers

Disadvantages

• Limited resistance range: 100kΩ may not be suitable for all applications
• Single-channel: Only one independent potentiometer available per IC
• Requires external components: Additional resistors may be needed for specific applications

Working Principles

The X9241AMST1 is a digital potentiometer that utilizes a resistor ladder network and electronic switches to adjust the resistance value. The control signals received through the SPI interface determine the position of the wiper, which in turn changes the effective resistance between the R and W terminals. The non-volatile memory ensures that the resistance setting is retained even when power is removed.

Detailed Application Field Plans

The X9241AMST1 can be used in various applications, including:

1. Audio equipment: Volume control, tone adjustment
2. Industrial automation: Calibration, feedback control
3. Test and measurement instruments: Fine-tuning, signal conditioning
4. Consumer electronics: Brightness control, user interface adjustment
5. Automotive systems: Climate control, motor speed control

Alternative Models

• X9241BMST1: 10-bit digital potentiometer, 50kΩ resistance range
• X9241CMST1: 10-bit digital potentiometer, 200kΩ resistance range
• X9242AMST1: Dual-channel 10-bit digital potentiometer, 100kΩ resistance range

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