ATMEGA2560-16AU Microchip Technology / Atmel High Performance, Low Power AVR® 8-Bit Microcontroller

ATMEGA2560-16AU Microchip Technology / Atmel High Performance, Low Power AVR® 8-Bit Microcontroller

1.Features

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– 64K/128K/256K Bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles– Optional Boot Code Section with Independent Lock BitsIn-System Programming by On-chip Boot ProgramTrue Read-While-Write Operation– 4K Bytes EEPROMEndurance: 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 (ATmega1281/2561, ATmega640/1280/2560)– Output Compare Modulator– 8/16-channel, 10-bit ADC (ATmega1281/2561, ATmega640/1280/2560)– Two/Four Programmable Serial USART (ATmega1281/2561,ATmega640/1280/2560)– 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
•I/O and Packages– 54/86 Programmable I/O Lines (ATmega1281/2561, ATmega640/1280/2560)– 64-pad QFN/MLF, 64-lead TQFP (ATmega1281/2561)– 100-lead TQFP, 100-ball CBGA (ATmega640/1280/2560)– RoHS/Fully Green
•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

2.describe

The AVR core combines a rich instruction set with 32 general purpose working registers.All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowingtwo independent registers to be accessed in one single instruction executed in one clockcycle. The resulting architecture is more code efficient while achieving throughputs up toten times faster than conventional CISC microcontrollers.The ATmega640/1280/1281/2560/2561 provides the following features: 64K/128K/256Kbytes of In-System Programmable Flash with Read-While-Write capabilities, 4K bytesEEPROM, 8K bytes SRAM, 54/86 general purpose I/O lines, 32 general purpose work-ing registers, Real Time Counter (RTC), six flexible Timer/Counters with comparemodes and PWM, 4 USARTs, a byte oriented 2-wire Serial Interface, a 16-channel, 10-bit ADC with optional differential input stage with programmable gain, programmableWatchdog Timer with Internal Oscillator, an SPI serial port, IEEE std. 1149.1 compliantJTAG test interface, also used for accessing the On-chip Debug system and program-ming and six software selectable power saving modes. The Idle mode stops the CPUwhile allowing the SRAM, Timer/Counters, SPI port, and interrupt system to continuefunctioning. The Power-down mode saves the register contents but freezes the Oscilla-tor, disabling all other chip functions until the next interrupt or Hardware Reset. InPower-save mode, the asynchronous timer continues to run, allowing the user to main-tain a timer base while the rest of the device is sleeping. The ADC Noise Reductionmode stops the CPU and all I/O modules except Asynchronous Timer and ADC, to min-imize switching noise during ADC conversions. In Standby mode, the Crystal/ResonatorOscillator is running while the rest of the device is sleeping. This allows very fast start-upcombined with low power consumption. In Extended Standby mode, both the mainOscillator and the Asynchronous Timer continue to run.The device is manufactured using Atmel’s high-density nonvolatile memory technology.The On-chip ISP Flash allows the program memory to be reprogrammed in-systemthrough an SPI serial interface, by a conventional nonvolatile memory programmer, orby an On-chip Boot program running on the AVR core. The boot program can use anyinterface to download the application program in the application Flash memory. Soft-ware in the Boot Flash section will continue to run while the Application Flash section isupdated, providing true Read-While-Write operation. By combining an 8-bit RISC CPUwith In-System Self-Programmable Flash on a monolithic chip, the AtmelATmega640/1280/1281/2560/2561 is a powerful microcontroller that provides a highlyflexible and cost effective solution to many embedded control applications.The ATmega640/1280/1281/2560/2561 AVR is supported with a full suite of programand system development tools including: C compilers, macro assemblers, programdebugger/simulators, in-circuit emulators, and evaluation kits.

3.TQFP-pinout ATmega640/1280/2560