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2K Bytes of In-System Self-Programmable Flash, 128 Bytes In-System Programmable EEPROM, 128 Bytes Internal SRAM. Two 8-bit timer/counters with PWM and prescaler, 10-bit ADC, USI-Universal Serial Interface. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.
8KB version: ATtiny85
4KB version: ATtiny45
Automotive Versions
ATtiny25 Auto,
ATtiny45 Auto,
ATtiny85 Auto
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ATtiny25/45/85 Preliminary Summary
(28 pages, revision K, updated 1/08)
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ATtiny25/45/85 Preliminary
(231 pages, revision K, updated 1/08)
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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.
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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.
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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.
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AVR102: Block Copy Routines
(5 pages, revision B, updated 5/02)
This Application Note contains routines for transfer of data blocks.
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AVR108: Setup and use of the LPM Instructions
(4 pages, revision B, updated 5/02)
This Application Note describes how to access constants saved in Flash program memory of the AVR microcontrollers
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AVR120: Characterization and Calibration of the ADC on an AVR
(15 pages, revision D, updated 02/06)
This application note explains various ADC (Analog to Digital Converter) characterization parameters and how they effect ADC measurements. It also describes how to measure these parameters during application testing in production and how to perform run-time compensation.
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 Other Related Application Notes |
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AVR Dragon |
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AVR JTAGICE mkII |
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See more FAQs |
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8-bit Microcontroller Drives Battery-powered Thermostat
(Article, 2 pages, updated 1/04)
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Algorithm Builder for AVR
(Article, 2 pages, updated 1/04)
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Atmel AVR-based Constant Current Supply
(Article, 4 pages, updated 1/04)
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Atmel Motor Driver Solutions
(Brochure, 16 pages, revision A, updated 10/08)
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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
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AVR Instruction Set
(User Guide, 155 pages, revision H, updated 7/09)
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Heterogeneous Device Networking
(Article, 2 pages, updated 1/04)
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High-level Tool Targeted for AVR Controllers
(Article, 2 pages, updated 1/04)
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Mixed-signal ICs for Body and Powertrain Electronics
(Brochure, 20 pages, revision C, updated 07/07)
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Touch Solutions
