8-Bit Microcontroller with 64K/128K Bytes In-System Programmable Flash

       Features

•Utilizes the AVR® Enhanced RISC Architecture

•121 Powerful Instructions - Most Single Clock Cycle Execution

•128K bytes of In-System Reprogrammable Flash ATmega103/L64K bytes of In-System Reprogrammable Flash

 •ATmega603/L– SPI Interface for In-System Programming– Endurance: 1,000 Write/Erase Cycles

•4K bytes EEPROM ATmega103/L2K 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

Datasheet(copy)

https://www.alldatasheet.com/datasheet-pdf/pdf/56274/ATMEL/ATMEGA103-6AI.html