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The ATTINY25-20SU is a microcontroller from Microchip Technology, part of the ATtiny family. Below are its specifications, descriptions, and features:

Specifications:

• Manufacturer: Microchip
• Series: ATtiny
• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Flash Memory: 2KB (1K x 16)
• SRAM: 128B
• EEPROM: 128B
• I/O Pins: 6
• Operating Voltage: 1.8V - 5.5V
• Package / Case: 8-SOIC (3.9mm Width)
• Communication Interfaces: SPI, I2C, USI (Universal Serial Interface)
• Timers: 2 x 8-bit, 1 x 16-bit
• Analog Comparators: 1
• ADC Channels: 4 x 10-bit
• PWM Channels: 3
• Temperature Range: -40°C to +85°C

Descriptions:

The ATTINY25-20SU is a low-power, high-performance 8-bit AVR microcontroller with 2KB Flash memory, 128B SRAM, and 128B EEPROM. It operates at up to 20MHz and supports a wide voltage range (1.8V to 5.5V), making it suitable for battery-powered applications. It features 6 programmable I/O pins, multiple communication interfaces, and analog capabilities, including a 10-bit ADC and PWM outputs.

Features:

• High-Performance RISC CPU with 120 instructions
• Non-Volatile Program & Data Memory (Flash, EEPROM)
• Low Power Consumption (Active & Sleep Modes)
• Internal & External Interrupts
• USI (Universal Serial Interface) for SPI, I2C, and UART emulation
• 4-Channel 10-bit ADC
• Three PWM Channels
• On-Chip Analog Comparator
• Wide Operating Voltage (1.8V - 5.5V)
• Industrial Temperature Range (-40°C to +85°C)

This microcontroller is ideal for embedded control applications, including sensor interfacing, motor control, and low-power IoT devices.