Описание
The ATmega1280 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 ATmega1280 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
- High Performance, Low Power AVR® 8-Bit Microcontroller
- Advanced RISC Architecture
- 135 Powerful Instructions
- Most Single Clock Cycle Execution
- 32 x 8 General Purpose Working Registers
- Fully Static Operation
- Up to 16 MIPS Throughput at 16 MHz
- On-Chip 2-cycle Multiplier
- Non-volatile Program and Data Memories
- 128K Bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles
- Optional Boot Code with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation
- 4K Bytes EEPROM Endurance: 100,000 Write/Erase Cycles
- 8K Bytes Internal SRAM
- Up to 64K Bytes Optional External Memory Space
- Programming Lock for Software Security
- JTAG (IEEE std. 1149.1 compliant) Interface
- Boundary-scan Capabilities According to the JTAG Standard
- Extensive On-chip Debug Support
- Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
- Peripheral Features
- Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
- Four 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode
- Real Time Counter with Separate Oscillator
- Four 8-bit PWM Channels
- Six/Twelve PWM Channels with Programmable Resolution from 2 to 16 Bits (ATmega1280)
- Output Compare Modulator
- 8/16-channel, 10-bit ADC (ATmega1280)
- Two/Four Programmable Serial USART (ATmega1280)
- Master/Slave SPI Serial Interface
- Byte Oriented 2-wire Serial Interface
- Programmable Watchdog Timer with Separate On-chip Oscillator
- On-chip Analog Comparator
- Interrupt and Wake-up on Pin Change
- Special Microcontroller Features
- Power-on Reset and Programmable Brown-out Detection
- Internal Calibrated Oscillator
- External and Internal Interrupt Sources
- Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
- Temperature Range:
- -40°C to 85°C Industrial
- Ultra-Low Power Consumption
- Active Mode: 1 MHz, 1.8V: 510 µA
- Power-down Mode: 0.1 µA at 1.8V
- Speed Grade (see “Maximum speed vs. VCC” on 377):
- ATmega1280V: 0 – 4 MHz @ 1.8 – 5.5V, 0 – 8 MHz @ 2.7 – 5.5V
