Microchip Technology ATTINY261A-MUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Cut Tape (CT) | NULL
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 32-VQFN (5x5)
Package / Case 32-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY261A-MUR is a high-performance 8-bit AVR microcontroller in a compact 32-VFQFN package. It delivers 20MHz processing speed with 2KB flash and 128 bytes of SRAM. Operating from 1.8V to 5.5V, it integrates a temperature sensor, PWM, and watchdog timer, making it ideal for cost-sensitive embedded control applications.

  • Ultra-low voltage operation: 1.8V minimum enables direct battery operation without regulators.
  • Integrated temperature sensor: Eliminates external sensor ICs, reducing cost and board space.
  • High-speed AVR core: 20MHz throughput for real-time control tasks.
  • Robust protection: Brown-out reset and watchdog timer enhance system reliability.

Battery-Powered Sensor Nodes

The 1.8V minimum supply voltage and low-power sleep modes enable long battery life in IoT and remote monitoring devices.

Temperature Monitoring Systems

The integrated temperature sensor reduces BOM cost and simplifies PCB layout for thermostatic controls or environmental loggers.

PWM Motor Control

With 20MHz operation and PWM peripherals, it can generate precise control signals for small DC motors in toys or pumps.

Portable Consumer Electronics

The compact 32-VFQFN package and 5.5V maximum voltage allow direct interfacing with Li-ion batteries and space-constrained wearables.

Automotive Interior Modules

Operating from -40°C to 85°C, it suits non-critical automotive applications like seat control or lighting modules.

Industrial Process Timers

The WDT and brown-out detection ensure reliable operation in noisy industrial environments, preventing system lockups.

Q: What is the operating voltage range of the ATTINY261A-MUR?
A: It 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: The AVR core runs at up to 20MHz, providing a balance of performance and power efficiency.
Q: Does it include an analog temperature sensor?
A: Yes, it features an internal temperature sensor, useful for thermal monitoring without external components.
Q: What package is this device available in?
A: It comes in a 32-VFQFN exposed pad package, ideal for compact PCB designs with good thermal dissipation.
Q: What is the program memory size?
A: It has 2KB of in-system programmable flash memory (1K x 16 words).
Base Product Number : ATTINY261A
128B SRAM 20MHz 2KB Flash 8-bit MCU AVR Consumer Industrial Low Power PWM RISC Temperature Sensor VFQFN-32
Q: What is the operating voltage range of the ATTINY261A-MUR?
A: It 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: The AVR core runs at up to 20MHz, providing a balance of performance and power efficiency.
Q: Does it include an analog temperature sensor?
A: Yes, it features an internal temperature sensor, useful for thermal monitoring without external components.
Q: What package is this device available in?
A: It comes in a 32-VFQFN exposed pad package, ideal for compact PCB designs with good thermal dissipation.
Q: What is the program memory size?
A: It has 2KB of in-system programmable flash memory (1K x 16 words).