Microchip Technology Inc
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ATmega2561

Status: In Production

Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combines 256KB ISP flash memory, 8KB SRAM, 4KB EEPROM, 86 general purpose I/O lines, 32 general purpose working registers, real time counter, six flexible timer/counters with compare modes, PWM, 4 USARTs, byte oriented 2-wire serial interface, 8-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging. The device achieves a throughput of 16 MIPS at 16 MHz and operates between 4.5-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves a throughput approaching 1 MIPS per MHz, balancing power consumption and processing speed.

Parametrics
Name
Value
Program Memory Type
Flash
Program Memory Size (KB)
256
CPU Speed (MIPS/DMIPS)
16
SRAM Bytes
8,192
Data EEPROM/HEF (bytes)
4096
Digital Communication Peripherals
2-UART, 3-SPI, 1-I2C
Capture/Compare/PWM Peripherals
2 Input Capture, 2 CCP, 16PWM
Timers
2 x 8-bit, 4 x 16-bit
Number of Comparators
1
Temperature Range (C)
-40 to 85
Operating Voltage Range (V)
1.8 to 5.5
Pin Count
64

Documents

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Application Notes

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Device Documentation

12/10/2016
2468KB

User Guides

08/02/2017
312KB

White Papers

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
ATSTK600 Kit
ATSTK600 Kit ( ATSTK600 )

A complete starter kit and development system for the 8-bit and 32-bit AVR microcontrollers that gives designers a quick start to develop code on the AVR, with advanced features for prototyping and testing new designs.

The AVR device connects to the STK600 using an innovative routing and socketcard sandwich system, which routes the signals from the device to the appropriate...

Learn More
Add To Cart
Power Debugger kit
Power Debugger kit ( ATPOWERDEBUGGER )

Power Debugger is a powerful development tool for debugging and programming AVR microcontrollers using UPDI, JTAG, PDI, debugWIRE, aWire, TPI or SPI target interfaces and ARM® Cortex®-M based SAM microcontrollers using JTAG or SWD target interfaces.

In addition the Power Debugger has two independent current sensing channels for measuring and optimizing the power consumption of

...

Learn More
Add To Cart
Atmel-ICE Full Kit
Atmel-ICE Full Kit ( ATATMEL-ICE )

Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.

Atmel-ICE supports:

  • Programming and on-chip debugging of all AVR 32-bit MCUs on both JTAG and aWire interfaces
  • Programming and on-chip debugging of all AVR
...

Learn More
Add To Cart

Similar Devices

Product
Pins
Flash (KB)
RAM (B)
Price 5K
Notes
16
2
0
$0.97
 
44
8
0
$0.62
 
64
32
2,048
 
 
64
128
4,096
$8.25
 
100
128
8,192
$7.72
 
64
128
8,192
$6.28
 
44
128
16,384
$3.46
 
44
128
16,384
$3.84
 
64
128
4,096
$3.97
 
44
16
1,024
$3.22
 
44
16
1,024
$2.22
 
44
16
1,024
$2.63
 
44
16
1,024
$2.45
 
44
16
1,024
$3.04
 
32
16
1,024
$2.07
 
32
16
1,024
$1.15
 
32
16
1,024
 
 
32
16
1,024
$2.28
 
32
16
1,024
$1.14
 
32
16
1,024
$1.80
 
32
16
1,024
$0.87
 
64
16
1,024
$2.37
 
64
16
1,024
$2.87
 
64
16
1,024
$2.61
 
64
16
1,024
$3.23
 
44
16
1,024
$2.00
 
100
256
8,192
$8.61
 
64
256
8,192
$8.51
 
44
32
2,048
$3.91
 
44
32
2,048
$2.51
 
44
32
2,048
$3.38
 
44
32
2,048
$2.77
 
44
32
2,048
$3.79
 
44
32
2
$1.33
 
64
32
2,048
$3.29
 
100
32
2,048
$3.47
 
100
32
2,048
$3.04
 
100
32
2,048
$3.47
 
100
32
2,048
$3.35
 
64
32
2,048
$2.78
 
64
32
2,048
$3.35
 
64
32
2,048
$2.91
 
32
32
2,048
$1.33
 
32
32
2,048
$1.46
 
32
32
2,048
$3.09
 
32
32
2,048
 
 
64
32
2,048
$3.64
 
100
32
2,048
$4.14
 
100
32
2,048
$3.29
 
100
32
2,048
$4.14
 
44
32
2,048
$3.65
 
64
32
2,048
$2.91
 
64
32
2,048
$3.64
 
64
32
2,048
$3.23
 
44
32
2,048
$2.26
 
32
4
512
$1.31
 
32
4
512
$0.77
 
32
4
512
$1.46
 
32
4
512
$0.89
 
32
4
512
$1.80
 
32
4
512
$0.76
 
64
64
4,096
$5.66
 
100
64
8,192
$5.65
 
44
64
4,096
$3.77
 
44
64
4,096
$3.04
 
44
64
4,096
$3.87
 
44
64
4,096
$3.54
 
44
64
4,096
$4.89
 
64
64
4,096
$4.31
 
100
64
4,096
$4.96
 
100
64
4,096
$3.01
 
100
64
4,096
$3.38
 
64
64
4,096
$3.51
 
64
64
4,096
$3.86
 
64
64
4,096
$5.26
 
100
64
4,096
$6.03
 
100
64
4,096
$3.38
 
100
64
4,096
$3.76
 
64
64
4,096
$3.86
 
64
64
4,096
$4.21
 
64
64
4,096
$3.16
 
32
8
1,024
$1.70
 
32
8
1,024
$1.84
 
32
8
1,024
$0.92
 
32
8
1,024
 
 
32
8
1,024
$1.90
 
32
8
1,024
$0.95
 
32
8
1,024
$2.35
 
32
8
1,024
$0.81
 
32
8
1,024
$1.39
 
6
1
32
$0.24
 
8
1
32
$0.41
 
14
1
32
$0.45
 
8
1
64
$0.68
 
8
1
64
$0.38
 
20
16
1,024
$0.69
 
20
16
512
$0.95
 
20
16
512
$2.01
 
14
2
128
$0.39
 
20
2
128
$1.15
 
20
2
128
$0.48
 
14
2
128
$1.15
 
14
2
128
$0.48
 
14
2
128
 
 
8
2
128
$0.54
 
8
2
128
$1.40
 
20
2
0
$1.30
 
20
2
128
$0.61
 
20
2
128
$1.34
 
28
2
0
$1.29
 
6
0.5
32
$0.24
 
20
4
256
$0.54
 
20
4
256
$0.56
 
20
4
256
$1.36
 
14
4
256
$1.20
 
14
4
256
$0.64
 
14
4
256
$0.51
 
14
4
256
$1.52
 
8
4
256
$0.61
 
8
4
256
 
 
20
4
256
$1.20
 
20
4
256
$0.64
 
20
4
256
 
 
32
4
256
$0.63
 
6
0.5
32
$0.24
 
32
8
512
$0.73
 
14
8
512
$1.39
 
14
8
512
$0.73
 
14
8
512
$0.56
 
14
8
512
$1.95
 
8
8
512
$0.69
 
8
8
512
$1.93
 
20
8
512
$1.45
 
20
8
512
$0.75
 
20
8
512
$1.38
 
20
8
512
$1.06
 
20
8
0
 
 
32
8
512
$0.63
 
32
8
512
$1.24
 
6
1
32
$0.24
 

RoHS Information

Part Number
Device Weight
Shipping Weight
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
ATMEGA2561-16AU
0.540000
4.122222
64
TQFP
14x14x1mm
Matte Tin
e3
Rohs icon
efup china icon
ATMEGA2561V-8AUR
0.540000
0.750000
64
TQFP
14x14x1mm
Matte Tin
e3
Rohs icon
efup china icon
ATMEGA2561-16AUR
0.540000
0.750000
64
TQFP
14x14x1mm
Matte Tin
e3
Rohs icon
efup china icon
ATMEGA2561V-8AU
0.540000
4.122222
64
TQFP
14x14x1mm
Matte Tin
e3
Rohs icon
efup china icon
ATMEGA2561V-8MUR
0.242700
0.335500
64
VQFN
9x9x1mm
Matte Tin
e3
Rohs icon
efup china icon
ATMEGA2561-16MUR
0.242700
0.335500
64
VQFN
9x9x1mm
Matte Tin
e3
Rohs icon
efup china icon
ATMEGA2561V-8MU
0.242700
0.842308
64
VQFN
9x9x1mm
Matte Tin
e3
Rohs icon
efup china icon
ATMEGA2561-16MU
0.242700
0.842308
64
VQFN
9x9x1mm
Matte Tin
e3
Rohs icon
efup china icon
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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