ATmega2560

Part: ATmega640/V-1280/V-1281/V-2560/V-2561/V — Atmel Type: 8-bit AVR Microcontroller Description: High-performance, low-power 8-bit AVR microcontroller with up to 256KB In-System Self-Programmable Flash, 4KB EEPROM, 8KB SRAM, and up to 86 programmable I/O lines.

Operating Conditions:

• Supply voltage: 1.8V–5.5V
• Operating temperature: -40 to 85 °C
• Max clock frequency: 16 MHz @ 4.5V - 5.5V

Absolute Maximum Ratings:

Key Specs:

• Flash Memory: 64KB/128KB/256KB
• EEPROM: 4KB
• Internal SRAM: 8KB
• CPU Throughput: Up to 16 MIPS at 16MHz
• Data Retention: 20 years at 85°C / 100 years at 25°C
• Active Mode Current: 500μA at 1MHz, 1.8V
• Power-down Mode Current: 0.1μA at 1.8V
• ADC: 8/16-channel, 10-bit

Features:

• Advanced RISC Architecture with 135 powerful instructions
• JTAG (IEEE std. 1149.1 compliant) Interface for debug and programming
• Two 8-bit Timer/Counters and Four 16-bit Timer/Counters
• Four 8-bit PWM Channels and Six/Twelve PWM Channels with programmable resolution
• Two/Four Programmable Serial USARTs
• Master/Slave SPI Serial Interface
• Byte Oriented 2-wire Serial Interface
• Atmel QTouch library support for capacitive touch sensing

Applications:

• Embedded control applications

Package:

• 64-pad QFN/MLF (ATmega1281/2561)
• 64-lead TQFP (ATmega1281/2561)
• 100-lead TQFP (ATmega640/1280/2560)
• 100-ball CBGA (ATmega640/1280/2560)

• High Performance, Low Power Atmel ® AVR ® 8-Bit Microcontroller
• Advanced RISC Architecture
• -135 Powerful Instructions - Most Single Clock Cycle Execution
• -32 × 8 General Purpose Working Registers
• -Fully Static Operation
• -Up to 16 MIPS Throughput at 16MHz
• -On-Chip 2-cycle Multiplier
• High Endurance Non-volatile Memory Segments
• -64K/128K/256KBytes of In-System Self-Programmable Flash
• -4Kbytes EEPROM
• -8Kbytes Internal SRAM
• -Write/Erase Cycles:10,000 Flash/100,000 EEPROM
• -Data retention: 20 years at 85 C/ 100 years at 25 C
• -Optional Boot Code Section with Independent Lock Bits
• In-System Programming by On-chip Boot Program

· True Read-While-Write Operation

• -Programming Lock for Software Security

• Endurance: Up to 64Kbytes Optional External Memory Space

• Atmel ® QTouch ® library support

• -Capacitive touch buttons, sliders and wheels

• -QTouch and QMatrix acquisition

• -Up to 64 sense channels

• 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: 1MHz, 1.8V: 500μA

• -Power-down Mode: 0.1μA at 1.8V

• Speed Grade:

• 0 - 16MHz @ 4.5V - 5.5V

• ATmega640V/ATmega1280V/ATmega1281V:

• 0 - 4MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V

• ATmega2560V/ATmega2561V:

• 0 - 2MHz @ 1.8V - 5.5V, 0 - 8MHz @ 2.7V - 5.5V

• ATmega640/ATmega1280/ATmega1281:

• 0 - 8MHz @ 2.7V - 5.5V, 0 - 16MHz @ 4.5V - 5.5V

• ATmega2560/ATmega2561:

Figure 1-1. TQFP-pinout ATmega640/1280/2560

Figure 1-2. CBGA-pinout ATmega640/1280/2560

Table 1-1. CBGA-pinout ATmega640/1280/2560

N ote: The functions for each pin is the same as for the 100 pin packages shown in Figure 1-1 on page 2.

Table 1-1. CBGA-pinout ATmega640/1280/2560

Figure 1-3. Pinout ATmega1281/2561

N ote: The large center pad underneath the QF N /MLF package is made of metal and internally connected to G N D. It should be soldered or glued to the board to ensure good mechanical stability. If the center pad is left unconnected, the package might loosen from the board.

Figure 1-3. Pinout ATmega1281/2561