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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

Development Environment

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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
$1.30
 
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
ATMEGA644-20AUR
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
ATMEGA644PV-10AUR
0.273300
0.748333
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
ATMEGA644-20MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644-20MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644A-MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-A15MZ
0.132100
0.262500
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PA-MN
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PA-MNR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PA-MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PA-MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PV-10MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PV-10MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644V-10MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644V-10MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644A-AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644A-AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644P-20AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644P-20AUR
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-20AQ
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
ATMEGA644P-20AQR
0.273300
0.748333
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
ATMEGA644RFR2-ZF
0.144300
0.769231
48
VQFN
7x7x0.9mm
Matte Tin
e3
ATMEGA644RFR2-ZFR
0.144300
0.060857
48
VQFN
7x7x0.9mm
Matte Tin
e3
ATMEGA644RFR2-ZU
0.144300
0.769231
48
VQFN
7x7x0.9mm
Matte Tin
e3
ATMEGA644RFR2-ZUR
0.144300
0.060857
48
VQFN
7x7x0.9mm
Matte Tin
e3
ATMEGA644A-MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MU
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MUR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PV-10MQR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MQR
0.137900
0.061000
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644PV-10MQ
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644P-20MQ
0.137900
0.627778
44
VQFN
7x7x1mm
Matte Tin
e3
ATMEGA644A-PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644P-20PQ
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644P-20PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644PA-PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644PV-10PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644V-10PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644PV-10PQ
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
ATMEGA644-20PU
6.500000
10.600000
40
PDIP
.600in
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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