ATTINY261A-SU
8 Bit MCU, Low Power High Performance, AVR ATtiny Family ATtiny261 Series Microcontrollers, AVR

| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | ATTINY261A-SUCopy |
| Manufacturer Standard Lead Time | 24 weeks |
| Order Code | 2443187 |
| Product Range | AVR ATtiny Family ATtiny261 Series Microcontrollers |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price |
|---|---|
| 1+ | HK$11.430 |
| 25+ | HK$9.700 |
| 100+ | HK$9.510 |
Product Information
| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | ATTINY261A-SUCopy |
| Manufacturer Standard Lead Time | 24 weeks |
| Order Code | 2443187 |
| Product Range | AVR ATtiny Family ATtiny261 Series Microcontrollers |
| Technical Datasheet | |
| Product Range | AVR ATtiny Family ATtiny261 Series Microcontrollers |
| Device Core | AVR |
| Operating Frequency Max | 20MHz |
| Program Memory Size | 2KB |
| No. of Pins | 20Pins |
| IC Case / Package | WSOIC |
| No. of I/O's | 16I/O's |
| Interfaces | I2C, SPI |
| RAM Memory Size | 128Byte |
| ADC Channels | 11Channels |
| ADC Resolution | 10Bit |
| Supply Voltage Min | 1.8V |
| Supply Voltage Max | 5.5V |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| IC Mounting | Surface Mount |
| MCU Family | AVR ATtiny |
| MCU Series | ATtiny261 |
| Qualification | - |
| MSL | MSL 3 - 168 hours |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
The ATTINY261A-SU is a low-power 8-bit CMOS Microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the devices achieve throughputs approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general purpose working registers. All 32 registers are directly connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. The ATtiny261A provides 2kB of In-system programmable flash, 128byte EEPROM and 128byte SRAM.
- Advanced RISC architecture
- 123 Powerful instructions most single clock cycle execution
- 32 x 8 General purpose working registers
- Fully static operation
- Up to 20MIPS throughput at 20MHz
- On-chip analog comparator
- Programmable watchdog timer with separate on-chip oscillator
- Universal serial interface with start condition detector
- Interrupt and wake-up on pin change
- DebugWIRE on-chip debug system
- Power-on reset and programmable brown-out detection
- Internal calibrated oscillator
- External and internal interrupt sources
- Four sleep modes - Low power idle, ADC noise reduction, standby and power-down
- On-chip temperature sensor
- 16 Programmable I/O lines
Applications
Motor Drive & Control, Lighting
Technical Specifications
| Product Range | AVR ATtiny Family ATtiny261 Series Microcontrollers |
|---|---|
| Operating Frequency Max | 20MHz |
| No. of Pins | 20Pins |
| No. of I/O's | 16I/O's |
| RAM Memory Size | 128Byte |
| ADC Resolution | 10Bit |
| Supply Voltage Max | 5.5V |
| Operating Temperature Max | 85°C |
| MCU Family | AVR ATtiny |
| Qualification | - |
| SVHC | No SVHC (04-Feb-2026) |
| Device Core | AVR |
|---|---|
| Program Memory Size | 2KB |
| IC Case / Package | WSOIC |
| Interfaces | I2C, SPI |
| ADC Channels | 11Channels |
| Supply Voltage Min | 1.8V |
| Operating Temperature Min | -40°C |
| IC Mounting | Surface Mount |
| MCU Series | ATtiny261 |
| MSL | MSL 3 - 168 hours |
Technical Docs (3)
Associated Products
2 Products Found
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | United States Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85423190 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .001359 |
