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ATmega644

Status: In Production

Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

Mature product; not recommended for new designs. Replaced by ATmega644PA.

Parametrics
Name
Value
Program Memory Type
Flash
Program Memory Size (KB)
64
CPU Speed (MIPS/DMIPS)
20
SRAM Bytes
4,096
Data EEPROM/HEF (bytes)
2048
Digital Communication Peripherals
1-UART, 3-SPI, 1-I2C
Capture/Compare/PWM Peripherals
1 Input Capture, 1 CCP, 6PWM
Timers
2 x 8-bit, 1 x 16-bit
Number of Comparators
1
Temperature Range (C)
-40 to 85
Operating Voltage Range (V)
1.8 to 5.5
Pin Count
44

Documents

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Data Sheet

Application Notes

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Product Document

12/10/2016
2468KB

User Guides

08/02/2017
312KB

White Papers

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
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

Similar Devices

Product
Pins
Flash (KB)
RAM (B)
Price 5K
Notes
44
16
1,024
$2.22
 
44
16
1,024
$2.63
 
44
16
1,024
$2.45
 
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
2,048
$1.30
 
44
32
2
$1.33
 
44
64
4,096
$3.77
 
44
64
4,096
$3.04
 
44
64
4,096
$3.87
 
44
64
4,096
$3.54
 

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
ATMEGA644-20PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644V-10PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644PV-10PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644P-20PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644P-20PQ
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644A-PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644PV-10PQ
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644PA-PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644-20AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644V-10AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644V-10AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644-20AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644P-20AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PV-10AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644P-20AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644A-AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644P-20AQ
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PV-10AQR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PV-10AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PA-AN
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PA-ANR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PV-10AQ
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644A-AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PA-AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PA-AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644P-20AQR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644PA-MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PV-10MQR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644RFR2-ZU
0.144300
0.434615
48
VQFN
7x7x0.9mm
Matte Tin
e3
ATMEGA644-20MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644A-MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PV-10MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MQR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644V-10MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PV-10MQ
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644RFR2-ZUR
0.144300
0.060857
48
VQFN
7x7x0.9mm
Matte Tin
e3
ATMEGA644PV-10MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644-20MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PA-MNR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644RFR2-ZF
0.144300
0.434615
48
VQFN
7x7x0.9mm
Matte Tin
e3
ATMEGA644P-A15MZ
0.132100
0.033000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MQ
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644A-MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PA-MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PA-MN
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644V-10MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644RFR2-ZFR
0.144300
0.060857
48
VQFN
7x7x0.9mm
Matte Tin
e3
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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