Description

The ATTINY261-20SU is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. It is part of the ATtiny series microcontrollers and is designed for high performance and low power consumption. The ATtiny261-20SU executes powerful instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz. This allows system designers to optimize power consumption versus processing speed.

Specifications and features

- High Performance, Low Power AVR 8-Bit Microcontroller
- Advanced RISC Architecture: 123 Powerful Instructions, Most Single Clock Cycle Execution
- Non-volatile Program and Data Memories: 2/4/8K Byte of In-System Programmable Program Memory Flash (Endurance: 10,000 Write/Erase Cycles), 128/256/512 Bytes In-System Programmable EEPROM (Endurance: 100,000 Write/Erase Cycles), 128/256/512 Bytes Internal SRAM
- Peripheral Features: 8/16-bit Timer/Counter with Prescaler and Two PWM Channels, 8/10-bit High Speed Timer/Counter with Separate Prescaler, 3 High Frequency PWM Outputs with Separate Output Compare Registers, Programmable Dead Time Generator, Universal Serial Interface with Start Condition Detector, 10-bit ADC: 11 Single Ended Channels, 16 Differential ADC Channel Pairs, 15 Differential ADC Channel Pairs with Programmable Gain (1x, 8x, 20x, 32x), Programmable Watchdog Timer with Separate On-chip Oscillator, On-chip Analog Comparator
- Special Microcontroller Features: debugWIRE On-chip Debug System, In-System Programmable via SPI Port, External and Internal Interrupt Sources, Low Power Idle, ADC Noise Reduction, and Power-down Modes, Enhanced Power-on Reset Circuit, Programmable Brown-out Detection Circuit, Internal Calibrated Oscillator
- I/O and Packages: 16 Programmable I/O Lines, 20-pin PDIP, 20-pin SOIC and 32-pad MLF
- Operating Voltage: 1.8 - 5.5V for ATtiny261V/461V/861V, 2.7 - 5.5V for ATtiny261/461/861
- Speed Grade: ATtiny261V/461V/861V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V, ATtiny261/461/861: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
- Industrial Temperature Range
- Low Power Consumption: Active Mode: 1 MHz, 1.8V: 380μA, Power-down Mode: 0.1μA at 1.8V

Application Scenarios

The ATTINY261-20SU is designed for various applications that require low power consumption and high performance microcontrollers. It can be used in devices such as embedded systems, IoT devices, consumer electronics, industrial automation, and more. With its advanced features and compact design, it is suitable for applications where size and power efficiency are important.

Comparison

- High Performance: The ATTINY261-20SU executes powerful instructions in a single clock cycle, allowing for fast processing speeds.
- Low Power Consumption: It is designed to optimize power consumption, making it suitable for battery-powered devices and energy-efficient applications.
- Wide Operating Voltage Range: It can operate within a voltage range of 1.8V to 5.5V, providing flexibility for different power supply configurations.
- Versatile: The ATTINY261-20SU offers a wide range of peripheral features, including timers/counters, PWM outputs, ADC, and more, making it suitable for a variety of applications.
- Compact Design: It features a compact package with 16 programmable I/O lines, making it suitable for applications with limited space.

- Limited Program Memory: The ATTINY261-20SU has a maximum program memory size of 8K bytes, which may be insufficient for complex applications that require larger program storage.
- Limited I/O Pins: With only 16 programmable I/O lines, it may not be suitable for applications that require a large number of inputs and outputs.