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The BH2220FVM-TR is a digital potentiometer manufactured by ROHM Semiconductor. Below are its key specifications, descriptions, and features:

Specifications:

• Type: Digital Potentiometer (Variable Resistor)
• Resistance Value: 20 kΩ
• Number of Taps: 256
• Interface: I²C (2-wire serial interface)
• Supply Voltage (VDD): 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Package: SSOP-B20 (Surface Mount)
• Resolution: 8-bit (256 steps)
• Non-Volatile Memory: No (Volatile setting)
• End-to-End Resistance Tolerance: ±20%
• Low Power Consumption: Ideal for battery-operated devices

Descriptions:

The BH2220FVM-TR is a digitally controlled potentiometer that replaces mechanical potentiometers in applications requiring precise resistance adjustments via an I²C interface. It is commonly used in volume control, LCD contrast adjustment, and sensor calibration circuits.

Features:

• I²C-Compatible Interface – Allows easy digital control.
• Wide Operating Voltage – Supports 2.7V to 5.5V for versatile applications.
• 256-Step Resolution – Provides fine resistance adjustment.
• Compact SSOP-B20 Package – Saves board space in surface-mount designs.
• Low Power Consumption – Suitable for portable and battery-powered devices.
• No Non-Volatile Memory – Resets to default on power cycle (volatile setting).

This device is ideal for applications requiring digital adjustment of resistance in audio, instrumentation, and industrial control systems.

(Note: Always refer to the official ROHM datasheet for complete details.)