Microchip Technology ATTINY261A-XUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.54 | $1.54 |
| 15+ | $1.49 | $22.35 |
| 25+ | $1.46 | $36.50 |
| 50+ | $1.38 | $69.00 |
| 100+ | $1.22 | $122.00 |
| N+ | $0.24 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Number of I/O | 16 |
| Program Memory Size | 2KB (1K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 128 x 8 |
| RAM Size | 128 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 11x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-TSSOP |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| ROHS |  |
The Microchip ATTINY261A-XUR is a high-performance 8-bit AVR microcontroller in a compact 20-TSSOP package. It delivers 2KB of flash memory and 128 bytes of SRAM, running at up to 20MHz. With a supply voltage range of 1.8V to 5.5V, it supports both low-power and standard logic levels. Integrated features include a temperature sensor, PWM, brown-out detection, power-on reset, and a watchdog timer, making it a versatile choice for cost-sensitive embedded control applications.
- Ultra-Low Power Operation: The 1.8V minimum supply voltage and optimized sleep modes extend battery life in portable devices.
- Integrated Analog Sensing: The on-chip temperature sensor reduces external component count and simplifies thermal management designs.
- Robust Safety Features: Brown-out detect/reset and watchdog timer prevent system failures in unstable power environments.
- Compact Footprint: The 20-TSSOP package saves PCB space while still offering 18 I/O pins for flexible interfacing.
Battery-Powered Sensor Nodes
The 1.8V minimum supply voltage and low-power sleep modes allow the ATTINY261A-XUR to run for extended periods on coin cells or AA batteries in IoT and remote monitoring devices.
Motor Control for Small Appliances
With 20MHz operation and built-in PWM channels, this MCU can generate precise control signals for brushless DC or stepper motors in fans, pumps, and robotics.
Temperature Monitoring Systems
The integrated temperature sensor eliminates the need for an external thermistor, reducing BOM cost and PCB area in thermostat and environmental logging designs.
LED Lighting and Dimming
Its PWM outputs and 128 bytes of RAM are sufficient for implementing smooth dimming curves and color mixing in RGB LED strips or architectural lighting.
Industrial Safety Interlocks
The brown-out detect/reset and watchdog timer ensure reliable operation in noisy industrial environments, preventing code corruption and system lockups.
Portable Medical Devices
The wide voltage range and -40°C to 85°C temperature tolerance make it suitable for handheld diagnostic tools and wearable health monitors.
- Q: What is the operating voltage range of the ATTINY261A-XUR?
- A: The ATTINY261A-XUR operates from 1.8V to 5.5V, making it suitable for battery-powered and low-voltage applications.
- Q: What is the maximum clock speed?
- A: It supports a maximum speed of 20MHz, enabling responsive control in real-time systems.
- Q: How much program memory does it have?
- A: It features 2KB of in-system programmable flash memory (1K x 16 bits).
- Q: What package is this MCU available in?
- A: It comes in a 20-pin TSSOP package with a 4.40mm width, ideal for space-constrained PCBs.
- Q: Does it include analog and safety features?
- A: Yes, it integrates a temperature sensor, PWM, brown-out detect/reset, POR, and a watchdog timer.
ATTINY261A-XUR.pdf
- Q: What is the operating voltage range of the ATTINY261A-XUR?
- A: The ATTINY261A-XUR operates from 1.8V to 5.5V, making it suitable for battery-powered and low-voltage applications.
- Q: What is the maximum clock speed?
- A: It supports a maximum speed of 20MHz, enabling responsive control in real-time systems.
- Q: How much program memory does it have?
- A: It features 2KB of in-system programmable flash memory (1K x 16 bits).
- Q: What package is this MCU available in?
- A: It comes in a 20-pin TSSOP package with a 4.40mm width, ideal for space-constrained PCBs.
- Q: Does it include analog and safety features?
- A: Yes, it integrates a temperature sensor, PWM, brown-out detect/reset, POR, and a watchdog timer.
