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Description

The ATmega603/103 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 ATmega603/103 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Features

? Utilizes the AVR? Enhanced RISC Architecture

? 121 Powerful Instructions - Most Single Clock Cycle Execution

? 128K bytes of In-System Reprogrammable Flash ATmega103/L 64K bytes of In-System Reprogrammable Flash ATmega603/L

– SPI Interface for In-System Programming

– Endurance: 1,000 Write/Erase Cycles

? 4K bytes EEPROM ATmega103/L 2K bytes of EEPROM ATmega603/L

– Endurance: 100,000 Write/Erase Cycles

? 4K bytes Internal SRAM

? 32 x 8 General Purpose Working Registers + Peripheral Control Registers

? 32 Programmable I/O Lines, 8 Output Lines, 8 Input Lines

? Programmable Serial UART + SPI Serial Interface

? VCC Supply

– 2.7 - 3.6V ATmega603L/ATmega103L

– 4.0 - 5.5V ATmega603/ATmega103

? Fully Static Operation

– 0 - 6 MHz ATmega603/ATmega103

– 0 - 4 MHz ATmega603L/ATmega103L

? Up to 6 MIPS Throughput at 6 MHz

? RTC with Separate Oscillator

? Two 8-Bit Timer/Counters with Separate Prescaler and PWM

? One 16-Bit Timer/Counter with Separate Prescaler, Compare, Capture Modes and Dual 8-, 9- or 10-Bit PWM

? Programmable Watchdog Timer with On-Chip Oscillator

? On-Chip Analog Comparator

? 8-Channel, 10-Bit ADC

? Low Power Idle, Power Save and Power Down Modes

? Software Selectable Clock Frequency

? Programming Lock for Software Security