ATTINY261A-XU
IC MCU 8BIT 2KB FLASH 20TSSOP
Embedded Microcontrollers
20-TSSOP (0.173", 4.40mm Width)
AVR® ATtiny
Active
$1.53 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Microchip Technology |
| Model | ATTINY261A-XU |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Core Processor | AVR |
| Speed | 20MHz |
| Program Memory Size | 2KB (1K x 16) |
| RAM Size | 128 x 8 |
| Number of I/O | 16 |
| Data Converters | A/D 11x10b |
| Voltage - Supply | 1.8V ~ 5.5V |
| Connectivity | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Supplier Device Package | 20-TSSOP |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
ATTINY261A-XU by Microchip Technology is a AVR microcontroller widely used in industrial control, motor drives, IoT devices, 3D printer mainboards, and consumer electronics. The 20-TSSOP (0.173", 4.40mm Width) package fits automated SMT assembly. Operating temperature is -40°C ~ 85°C (TA) — verify your application environment. Pin-compatible domestic alternatives include GigaDevice GD32 series and Artery AT32 series — note GD32 ADC specs may differ slightly from ST originals.
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All Technical Specifications
| Speed | 20MHz |
| RAM Size | 128 x 8 |
| Core Size | 8-Bit |
| EEPROM Size | 128 x 8 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Connectivity | USI |
| Number of I/O | 16 |
| Core Processor | AVR |
| Data Converters | A/D 11x10b |
| Oscillator Type | Internal |
| Program Memory Size | 2KB (1K x 16) |
| Program Memory Type | FLASH |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
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