Microchip Technology ATTINY261A-MFR

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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 ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-QFN (5x5)
Package / Case 32-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY261A is an 8-bit MCU based on the AVR core, running at 20MHz. It offers 2KB of flash and 128 x 8 RAM, providing a cost-effective solution for simple control tasks. With a supply voltage range of 1.8V to 5.5V and an operating temperature range of -40°C to 125°C, it is suitable for demanding applications. The 32-VFQFN package is compact and robust.

  • Cost-Effective: 8-bit AVR core provides a low-cost solution for basic control.
  • High Temperature Tolerance: -40°C to 125°C operation for extreme environments.
  • Integrated Features: Includes brown-out detection, POR, PWM, and temperature sensor.
  • Wide Voltage Range: 1.8V to 5.5V supports both battery and regulated supplies.

Automotive Lighting Control

The 20MHz AVR core and PWM features enable precise control of LED headlights and interior lighting.

Industrial Sensors

With a built-in temperature sensor and WDT, it can monitor and report environmental conditions in harsh factory settings.

Consumer Appliances

Its small 32-VFQFN package and low voltage operation (1.8V-5.5V) are ideal for smart plugs and power tools.

Battery Management

The brown-out detection and POR features ensure safe operation in single-cell Li-ion battery protection circuits.

Motor Control

PWM outputs allow for simple speed control of small DC motors in toys and pumps.

Security Systems

The wide temperature range and WDT make it reliable for door sensors and alarm keypads.

Q: What is the core architecture of the ATTINY261A?
A: It uses the AVR core.
Q: What is the maximum clock speed?
A: The device runs at up to 20MHz.
Q: How much program memory does it have?
A: It has 2KB of flash memory.
Q: What is the operating temperature range?
A: It operates from -40°C to 125°C.
Base Product Number : ATTINY261A
20MHz 2KB Flash 32-VFQFN 8-bit MCU Automotive AVR Consumer Industrial POR PWM Temp Sensor WDT
Q: What is the core architecture of the ATTINY261A?
A: It uses the AVR core.
Q: What is the maximum clock speed?
A: The device runs at up to 20MHz.
Q: How much program memory does it have?
A: It has 2KB of flash memory.
Q: What is the operating temperature range?
A: It operates from -40°C to 125°C.