Features
• Utilizes the AVR® RISC Architecture
• AVR – High-performance and Low-power RISC Architecture
– 89 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Up to 12 MIPS Throughput at 12 MHz
• Data and Non-volatile Program Memory
– 1K Byte of In-System Programmable Flash
Endurance: 1,000 Write/Erase Cycles
– 64 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
– On-chip Analog Comparator
– 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
– Selectable On-chip RC Oscillator for Zero External Components
• Specifications
– Low-power, High-speed CMOS Process Technology
– Fully Static Operation
• Power Consumption at 4 MHz, 3V, 25°C
– Active: 2.0 mA
– Idle Mode: 0.4 mA
– Power-down Mode: <1 μA
• I/O and Packages
– 15 Programmable I/O Lines
– 20-pin PDIP, SOIC and SSOP
• Operating Voltages
– 2.7 - 6.0V (AT90S1200-4)
– 4.0 - 6.0V (AT90S1200-12)
• Speed Grades
– 0 - 4 MHz, (AT90S1200-4)
– 0 - 12 MHz, (AT90S1200-12)