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ATMEGA640 Datasheet(PDF) 392 Page - Microchip Technology

Part # ATMEGA640
Description  8-bit Microcontroller with 16/32/64KB In-System Programmable Flash
PDF  436 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

ATMEGA640 Datasheet(HTML) 392 Page - Microchip Technology

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ATmega640/V-1280/V-1281/V-2560/V-2561/V [DATASHEET]
DS40002211A
32.10 Internal Oscillator Speed
Figure 32-35. Watchdog Oscillator Frequency vs. VCC
Figure 32-36. Watchdog Oscillator Frequency vs. Temperature
CC
85°C
25°C
-40°C
114
116
118
120
122
124
126
128
2
2.5
3
3.5
4
4.5
5
5.5
VCC (V)
WATCHDOGOSCILLATORFREQUENCYvs. TEMPERATURE
5.5V
4.0V
3.3V
2.7V
2.1V
114
116
118
120
122
124
126
128
-60
-40
-20
0
20
40
60
80
100
Temperature (°C)



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