Description
The ATtiny22/L is a low-power CMOS 8-bit microcontrollers based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny22/L achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Features
• Utilizes the AVR® RISC Architecture
• AVR - High-performance and Low-power RISC Architecture
   – 118 Powerful Instructions - Most Single Clock Cycle Execution
   – 32 x 8 General Purpose Working Registers
   – Up to 8 MIPS Throughput at 8 MHz
• Data and Nonvolatile Program Memory
   – 2K Bytes of In-System Programmable Flash Endurance 1,000 Write/Erase Cycles
   – 128 Bytes of internal SRAM
   – 128 Bytes of In-System Programmable EEPROM Endurance: 100,000 Write/Erase Cycles
   – Programming Lock for Flash Program and EEPROM Data Security
• Peripheral Features
   – One 8-bit Timer/Counter with Separate Prescaler
   – Programmable Watchdog Timer with On-chip Oscillator
   – SPI Serial Interface for In-System Programming
• Special Microcontroller Features
   – Low-power Idle and Power Down Modes
   – External and Internal Interrupt Sources
   – Power-on Reset Circuit
   – Selectable On-chip RC Oscillator
• Specifications
   – Low-power, High-speed CMOS Process Technology
   – Fully Static Operation
• Power Consumption at 4 MHz, 3V, 25°C
   – Active: 2.4 mA
   – Idle Mode: 0.5 mA
   – Power Down Mode: <1 µA
• I/O and Packages
   – 5 Programmable I/O Lines
   – 8-pin PDIP and SOIC
• Operating Voltages
   – 2.7 - 6.0V (ATtiny22L)
   – 4.0 - 6.0V (ATtiny22)
• Speed Grades
   – 0 - 4 MHz (ATtiny22L)
   – 0 - 8 MHz (ATtiny22)