MEGA103 Technical Summary

Overview

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 system designers to optimize performance and power consumption for a wide range of applications. The microcontroller features in-system reprogrammable Flash memory, EEPROM, and SRAM, making it highly versatile for embedded systems.

Features

• AVR® Enhanced RISC Architecture: Executes 121 powerful instructions, most in a single clock cycle.
• Memory:
  • 128K bytes of In-System Reprogrammable Flash (ATmega103/L)
  • 64K bytes of In-System Reprogrammable Flash (ATmega603/L)
  • 4K bytes EEPROM (ATmega103/L) or 2K bytes EEPROM (ATmega603/L)
  • 4K bytes Internal SRAM
• I/O Capabilities:
  • 32 x 8 General Purpose Working Registers + Peripheral Control Registers
  • 32 Programmable I/O Lines, 8 Output Lines, 8 Input Lines
• Communication Interfaces:
  • Programmable Serial UART
  • SPI Serial Interface
• Power Supply:
  • 2.7 - 3.6V (ATmega603L/ATmega103L)
  • 4.0 - 5.5V (ATmega603/ATmega103)
• Performance:
  • Fully Static Operation: 0 - 6 MHz (ATmega603/ATmega103), 0 - 4 MHz (ATmega603L/ATmega103L)
  • Up to 6 MIPS Throughput at 6 MHz
• Timers and PWM:
  • 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
• Additional Features:
  • 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

Applications

The ATmega603/103 microcontroller is designed for a broad range of embedded applications, including but not limited to:

• Industrial Automation: Control systems, sensor interfacing, and monitoring.
• Consumer Electronics: Smart home devices, remote controls, and wearable technology.
• Automotive Systems: Engine control units, dashboard displays, and infotainment systems.
• Medical Devices: Portable diagnostic equipment and patient monitoring systems.
• Communication Systems: Modems, routers, and wireless communication modules.
• Embedded Systems: Robotics, IoT devices, and custom microcontroller projects.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (VCC): -0.5V to +6.0V
• Input Voltage (Except RESET): -0.5V to VCC + 0.5V
• RESET Pin Voltage: -0.5V to +13.0V
• Operating Temperature: -40°C to +85°C
• Storage Temperature: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage (VCC):
  • 2.7V to 3.6V (ATmega603L/ATmega103L)
  • 4.0V to 5.5V (ATmega603/ATmega103)
• Operating Frequency:
  • 0 to 6 MHz (ATmega603/ATmega103)
  • 0 to 4 MHz (ATmega603L/ATmega103L)

Power Consumption

• Active Mode (1 MHz, 3V): 0.6 mA typical
• Idle Mode (1 MHz, 3V): 0.2 mA typical
• Power Down Mode (3V): 0.1 µA typical

Package Information

The ATmega603/103 is available in a TQFP (Thin Quad Flat Package) configuration. Key package details include:

• Package Type: 44-pin TQFP
• Dimensions: 10mm x 10mm body size
• Pin Pitch: 0.8mm
• Lead Count: 44
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The pin configuration of the ATmega603/103 is designed to maximize functionality while maintaining a compact footprint. Key pin groups include:

• Power Pins: VCC, GND, AVCC, AREF
• I/O Ports: Port A, Port B, Port C, Port D
• Communication Pins: TXD, RXD, SCK, MOSI, MISO, SS
• Timer/Counter Pins: T0, T1, ICP, OC1A, OC1B
• ADC Pins: ADC0 to ADC7
• Control Pins: RESET, XTAL1, XTAL2

Conclusion

The ATmega603/103 microcontroller is a powerful and flexible solution for embedded systems, offering high performance, low power consumption, and a rich set of peripherals. Its advanced RISC architecture, extensive memory options, and versatile I/O capabilities make it suitable for a wide range of applications. Whether used in industrial, consumer, automotive, or medical applications, the ATmega603/103 provides the reliability and performance needed for demanding environments.