ATTINY261A-XU
- Mfr.Part #
- ATTINY261A-XU
- Manufacturer
- Microchip Technology
- Package / Case
- 20-TSSOP (0.173, 4.40mm Width)
- Datasheet
- Download
- Description
- IC MCU 8BIT 2KB FLASH 20TSSOP
- Stock
- 2,985
- In Stock :
- 2,985
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- EEPROM Size :
- 128 x 8
- Supply Current-Max :
- 7 mA
- Base Product Number :
- ATTINY261
- Manufacturer :
- Microchip
- Additional Feature :
- ALSO OPERATES AT 1.8V MINIMUM SUPPLY AT 4 MHZ
- Number of I/Os :
- 16 I/O
- RoHS :
- Details
- Device Core :
- AVR
- Package Shape :
- RECTANGULAR
- Program Memory Size :
- 2KB 1K x 16
- Number of Terminations :
- 20
- ROM (words) :
- 1024
- Tradename :
- AVR
- Operating Temperature :
- -40°C~85°C TA
- Memory Size :
- 2kB
- Packaging :
- Tape and Reel (TR)
- Number of ADC Channels :
- 11 Channel
- Brand :
- Microchip Technology / Atmel
- Base Part Number :
- ATtiny261A
- Length :
- 6.5mm
- Series :
- AVR® ATtiny
- Voltage - Supply (Vcc/Vdd) :
- 1.8V~5.5V
- Supplier Device Package :
- 20-TSSOP
- Data Converters :
- A/D 11x10b
- Peripherals :
- Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
- ROM Programmability :
- Flash
- Terminal Position :
- Dual
- Mount :
- Surface Mount
- Number of I/O :
- 16
- Oscillator Type :
- Internal
- Terminal Form :
- Gull wing
- Watchdog Timer :
- yes
- Supply Voltage-Max (Vsup) :
- 5.5V
- Terminal Finish :
- Matte Tin (Sn)
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Bit Size :
- 8
- Published :
- 1997
- Width :
- 4.4 mm
- Reach Compliance Code :
- Compliant
- Core Processor :
- AVR
- Factory Lead Time :
- 7 Weeks
- Product Status :
- Active
- JESD-609 Code :
- e3
- Maximum Operating Temperature :
- + 85 C
- Supply Voltage :
- 5V
- Interfaces :
- SPI
- JESD-30 Code :
- R-PDSO-G20
- Minimum Operating Temperature :
- - 40 C
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Data Bus Width :
- 8B
- Temperature Grade :
- Industrial
- Mounting Type :
- Surface Mount
- Speed :
- 20MHz
- Surface Mount :
- yes
- DAC Channels :
- No
- DMA Channels :
- No
- Pbfree Code :
- yes
- Product :
- MCU
- RAM Size :
- 128 x 8
- Number of I/O Lines :
- 16
- Data Converter :
- A/D 11x10b
- Interface :
- SPI
- Contact Plating :
- Tin
- Mounting Style :
- SMD/SMT
- Core Size :
- 8-Bit
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Seated Height-Max :
- 1.2 mm
- RoHS Status :
- ROHS3 Compliant
- Terminal Pitch :
- 0.65mm
- Program Memory Type :
- Flash
- Number of Timers/Counters :
- 2
- Product Type :
- 8-bit Microcontrollers - MCU
- CPU Family :
- AVR RISC
- Supply Voltage-Min (Vsup) :
- 4.5V
- DAC Resolution :
- -
- Package / Case :
- 20-TSSOP (0.173, 4.40mm Width)
- Connectivity :
- USI
- Frequency :
- 20MHz
- Power Supplies :
- 2/5 V
- Qualification Status :
- Not Qualified
- Lead Free :
- Lead Free
- Peak Reflow Temperature (Cel) :
- 260
- Number of Pins :
- 20
- Product Category :
- 8-bit Microcontrollers - MCU
- Number of Terminals :
- 20
- Interface Type :
- I2C, SPI
- PWM Channels :
- yes
- Has ADC :
- yes
- RAM (bytes) :
- 128
- Datasheets
- ATTINY261A-XU
ATTINY261A-XU Documents

Microcontrollers Microchip Technology ATTINY261A-XU Overview
The Microcontrollers Microchip Technology ATTINY261A-XU is a highly capable microcontroller unit (MCU) designed for sophisticated applications requiring compact, efficient, and cost-effective solutions. Manufactured by Microchip Technology, this MCU leverages an 8-bit AVR architecture that ensures reliable performance for a broad range of applications. With 2KB of on-chip flash memory and a variety of peripherals integrated into a small 20-TSSOP package, it is particularly well-suited for embedded systems that require low power consumption and high functionality in a limited space.
ATTINY261A-XU Features
This MCU features a robust set of capabilities including 2KB of ISP flash memory with read-while-write capabilities, 128B of EEPROM, and 128B SRAM. The ATTINY261A-XU operates within a voltage range of 1.8V to 5.5V, making it extremely versatile for various power environments. Enhanced features such as an 8-channel, 10-bit analog-to-digital converter, numerous programmable I/O lines, and support for SPI, UART, and I2C communication protocols underline its suitability for complex digital tasks. The device also supports a wide range of operating temperatures, making it reliable in varying environmental conditions.
ATTINY261A-XU Applications
- Smart Home Devices: Utilized in the automation of lighting, heating, and security systems where small form factor and low power usage are essential.
- Wearable Technology: Empowers compact devices like fitness trackers and smartwatches, providing essential functions without compromising battery life.
- Industrial Control Systems: Offers robust control in manufacturing processes, supporting complex tasks with its versatile I/O options and ADC capabilities.
- Consumer Electronics: Ideal for enhancing user interfaces and functionality in devices such as remote controls, portable gaming units, and small appliances.
- Automotive Applications: Used in vehicle monitoring systems where reliability and extended operational capability under various environmental conditions are crucial.
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