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