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ATtiny261
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Not recommended for new designs: replaced by ATtiny261A
Flash (Kbytes) 2
EEPROM (Kbytes) 0.125
SRAM (Bytes) 128
Max I/O Pins 16
F.max (MHz) 20
Vcc (V) 1.8 - 5.5
   MLF (VQFN) 32
 PDIP 20
 SOIC (300mil) 20
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ATtiny261/461/861: Not recommended for new designs Mature (20 pages, revision C, updated 10/09)
ATtiny261/461/861: Not Recommended for new desings. Mature (242 pages, revision C, updated 10/09)
 
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AVR077: Opto Isolated Emulation for the DebugWIRE (9 pages, revision A, updated 1/08)
This application note describes how to implement an optoisolated interface for the DebugWIRE. This device could help the debug of applications with non isolated power supply like ballast, motors, vacuum cleaners, refrigerators, etc.
AVR040: EMC Design Considerations (18 pages, revision D, updated 6/06)
This Application Note covers the most common EMC problems designers encounter when using Microcontrollers.
AVR042: AVR Hardware Design Considerations (14 pages, revision F, updated 4/08)
This Application Note covers the most common problems encountered when switching to a new microcontroller architecture like the AVR. Solutions and considerations for the most common design challenges are covered.
AVR469: MC301 Hardware User Guide (21 pages, revision A, updated 4/09)
The MC301 is the device board for ATtiny861 AVRŽ microcontroller which can be connected to the general-purpose power stage board MC300 for driving brushless DC, brushed DC and stepper motors. This board is also designed to be connected on any other driver board which could share the same interface. Power and all signals needed for a power stage board are available on the right side of the board. Jumpers allow demonstrating sensor or sensorless modes of motor control. Finally, interface like USB or Atmel DB101 Display module is also available.
AVR498: Sensorless control of BLDC Motors using ATtiny261/461/861 (20 pages, revision A, updated 7/09)
This application note describes how to implement a brushless DC motor control in sensorless mode using the ATtiny861 AVRŽ microcontroller. In this document, we will give a short description of brushless DC motor theory of operations, we will detail how to control a brushless DC motor in sensorless mode and we will also give a short description of the ATAVRMC301 and ATAVRMC300 boards used in this application note.
AVR000: Register and Bit-Name Definitions for the AVR Microcontroller (2 pages, revision C, updated 11/09)
This Application Note contains files which allow the user to use Register and Bit names from the databook when writing assembly programs.
  Other Related Application Notes
  
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Debug Tool: AVR JTAGICE mkII
Design Software: AVR Studio 4
Reference Design: ATAVRBC100
Starter Kit: ATSTK500
ATSTK600
ATSTK600-DIP
Software Files: AVR IBIS - Tiny files
Zip archive with IBIS files for Atmel AVR Tiny devices.
 
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AVR JTAGICE mkII
AVR Studio 4
See more FAQs
  
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8-bit Microcontroller Drives Battery-powered Thermostat (Article, 2 pages, updated 1/04)
Algorithm Builder for AVR (Article, 2 pages, updated 1/04)
Atmel AVR-based Constant Current Supply (Article, 4 pages, updated 1/04)
AVR and AVR32 - Quick Reference Guide (Overview, 68 pages, revision I, updated 5/09)
Introduction of the product range of AVR and AVR32 microcontrollers and application processors:
  • Device family description
  • Key features
  • Device selection guides
  • Application oriented device families
  • Tools offer
AVR Instruction Set (User Guide, 155 pages, revision H, updated 7/09)
Heterogeneous Device Networking (Article, 2 pages, updated 1/04)
High-level Tool Targeted for AVR Controllers (Article, 2 pages, updated 1/04)