Datasheet
Features
• High Performance, Low Power AVR
®
8-Bit Microcontroller
• Advanced RISC Architecture
– 123 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
• Non-volatile Program and Data Memories
– 2/4/8K Byte of In-System Programmable Program Memory Flash
(ATtiny261/461/861)
Endurance: 10,000 Write/Erase Cycles
– 128/256/512 Bytes In-System Programmable EEPROM (ATtiny261/461/861)
Endurance: 100,000 Write/Erase Cycles
– 128/256/512 Bytes Internal SRAM (ATtiny261/461/861)
– Programming Lock for Self-Programming Flash Program and EEPROM Data
Security
• Peripheral Features
– 8/16-bit Timer/Counter with Prescaler
– 8/10-bit High Speed Timer/Counter with Separate Prescaler
3 High Frequency PWM Outputs with Separate Output Compare Registers
Programmable Dead Time Generator
– Universal Serial Interface with Start Condition Detector
– 10-bit ADC
11 Single Ended Channels
16 Differential ADC Channel Pairs
15 Differential ADC Channel Pairs with Programmable Gain (1x, 8x, 20x, 32x)
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
• Special Microcontroller Features
– debugWIRE On-chip Debug System
– In-System Programmable via SPI Port
– External and Internal Interrupt Sources
– Low Power Idle, ADC Noise Reduction, and Power-down Modes
– Enhanced Power-on Reset Circuit
– Programmable Brown-out Detection Circuit
– Internal Calibrated Oscillator
• I/O and Packages
– 16 Programmable I/O Lines
– 20-pin SOIC, 32-pad MLF and 20-lead TSSOP
• Operating Voltage:
– 2.7 - 5.5V for ATtiny261/461/861
• Speed Grade:
– ATtiny261/461/861: 0 - 8 MHz @ 2.7 - 5.5V, 0 - 16 MHz @ 4.5 - 5.5V
– Operating temperature: Automotive (-40°C to +125°C)
• Low Power Consumption
– Active Mode: 1 MHz, 2.7V: 380μA
– Power-down Mode: 0.1μA at 2.7V
8-bit
Microcontroller
with 2/4/8K
Bytes In-System
Programmable
Flash
ATtiny261
ATtiny461
ATtiny861
Automotive
Preliminary
Summary
7753BS–AVR–08/08