Overview
The ATtiny24/44/84 is a low-power CMOS 8-bit microcontroller based
on the AVR enhanced RISC architecture. By executing powerful
instructions in a single clock cycle, the ATtiny24/44/84 achieves
throughputs approaching 1 MIPS per MHz allowing the system designer
to optimize power consumption versus processing speed.
Features
• High Performance, Low Power AVR® 8-Bit Microcontroller
• Advanced RISC Architecture
– 120 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
(ATtiny24/44/84)
Endurance: 10,000 Write/Erase Cycles
– 128/256/512 Bytes In-System Programmable EEPROM (ATtiny24/44/84)
Endurance: 100,000 Write/Erase Cycles
– 128/256/512 Bytes Internal SRAM (ATtiny24/44/84)
– Programming Lock for Self-Programming Flash Program and EEPROM
Data
Security
• Peripheral Features
– Two Timer/Counters, 8- and 16-bit counters with two PWM Channels
on both
– 10-bit ADC
8 single-ended channels
12 differential ADC channel pairs with programmable gain (1x, 20x)
Temperature Measurement
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
– Universal Serial Interface
• Special Microcontroller Features
– debugWIRE On-chip Debug System
– In-System Programmable via SPI Port
– External and Internal Interrupt Sources
– Pin Change Interrupt on 12 pins
– Low Power Idle, ADC Noise Reduction, Standby and Power-down Modes
– Enhanced Power-on Reset Circuit
– Programmable Brown-out Detection Circuit
– Internal Calibrated Oscillator
– On-chip Temperature Sensor
• I/O and Packages
– 14-pin SOIC, PDIP and 20-pin QFN/MLF: Twelve Programmable I/O
Lines
• Operating Voltage:
– 1.8 - 5.5V for ATtiny24V/44V/84V
– 2.7 - 5.5V for ATtiny24/44/84
• Speed Grade
– ATtiny24V/44V/84V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 -
5.5V
– ATtiny24/44/84: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
• Industrial Temperature Range
• Low Power Consumption
– Active Mode:
1 MHz, 1.8V: 380 µA
– Power-down Mode:
1.8V: 100 nA
