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ATmega2561

Availability: Sampling

Deviceimage

Summary

256-Kbyte self-programming Flash Program Memory, 8-Kbyte SRAM, 4-KByte EEPROM, 16 Channel 10-bit A/D-converter. JTAG interface for on-chip-debug. Up to 16 MIPS throughput at 16 MHz. 1.8 - 5.5 Volt Operation.
64KB/100-pin version: ATmega640
128KB/64-pin version: ATmega1281
128KB/100-pin version: ATmega1280
256KB/100-pin version: ATmega2560

Overview features

Flash EEPROM SRAM Speed Volts
256kB 4096B 8192B 0 - 16MHz 2.7 - 5.5V

Files

Packages

General package info

  64-pin TQFP 64-lead MLF
Package Lead Code 64 64
Carrier Type TRAY TRAY
Max Package Height 1.2 1
Body Thickness 1.00 0.95
Body Width 14.00 9.00
Body Length 14.00 9.00
JEDEC MSL 3 3
Units per Carrier 90 260
Carriers per Bag 10 10
Units per Bag 900 2600
Quantity per Reel 1000 4000
Tape Pitch 24 12
Tape Width 32 16
Downloadable Files pdf Package Drawing
pdf Tube Tray Drawing
pdf Carrier Tape Drawing
pdf Reel Drawing
pdf Datasheet
pdf Package Drawing
pdf Carrier Tape Drawing
pdf Reel Drawing
Other features Tools
Memory
Flash Memory 256 kB
EEPROM Data Memory 4096 B
SRAM Data Memory 8192 B
General Purpose Registers (Accumulators) 32
External data memory interface (64kB) Yes
MCU Specific
Clock Frequency 0 - 16 MHz
Supply Voltage 2.7 - 5.5 V
Sleep Modes 6
Hardware Multiplier Yes
I/O Pins 54
On Chip Oscillator Yes
Interrupts 48
Interrupts, External pins 17
Interrupt or Wake-up on Pin Change Yes
Brown-out Detection Yes
Fully Static Operation Yes
On-Chip Debug support via JTAG port Yes
IEEE 1149.1 (JTAG) Boundary Scan Yes
Timers / Counters
Timer/Counters (8-bit) 2
Watchdog Timer with On-chip Oscillator Y (extended)
Real Time Counter Yes
Timer/Counters (16-bit) 4
Pulse Width Modulator 9 ch
Analog I/O
Analog Comparator Yes
Analog-to-Digital Converter (10-bit) 8 ch
Analog Gain Stage 2 ch
Programming Modes
In-System Programming via SPI Port Yes
High Voltage Parallel Programming (12V) Yes
Self-Programming via on-chip Boot Program Yes
In-System Programming via JTAG port Yes
Serial I/O
Full Duplex Serial Peripheral Interface (SPI) Yes
2-wire Serial Interface (I2C compatible) Yes
Full Duplex USART 2
Self-Programming
Read-While-Write Flash memory Yes
Fuses
EEPROM preserved through chip erase Yes
Divide external clock by 8 Yes
System Clock Prescaler Yes