Description

The AT90S1200 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the AT90S1200 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

    –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)