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Author Topic: Spannungsfrage 5 Volt  (Read 349 times)
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Moin Moin,
ich möchte mein Projet auf Platine auslagern.
Der Mircrocontoller (ATmega328) braucht ja 5 volt, habe ein Netzteil das Constant  5,14 bis 5,15 Volt liefert.
Kann ich das verwenden bzw kann man die 0,15 Volr vernachlässigen?
Oder muss es genau 5 Volt sein.

Gruß Paul
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Ja, geht.
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Quote
28.1 Absolute Maximum Ratings*
28.2 DC Characteristics
Operating Temperature.................................. -55°C to +125°C *NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent damage
to the device. This is a stress rating only and
functional operation of the device at these or
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Storage Temperature ..................................... -65°C to +150°C
Voltage on any Pin except RESET
with respect to Ground ................................-0.5V to VCC+0.5V
Voltage on RESET with respect to Ground......-0.5V to +13.0V
Maximum Operating Voltage ............................................ 6.0V
DC Current per I/O Pin ............................................... 40.0 mA
DC Current VCC and GND Pins................................ 200.0 mA
TA = -40°C to 85°C, VCC = 1.8V to 5.5V (unless otherwise noted)
Aus dem Datenblatt des 328er. Absolut Maximum Rating 6.0V. Ich würde sagen bis 5,5V wirst du nie Probleme haben. Also 6,0V "Überblebt" der Chip zwar verkürzt aber die Lebenszeit und geht gegen Betriebsicherheit.
Gruß
Der Dani
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ja 5,15V geht.
Grüße Uwe
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Danke für die schnellen Antworten.

Gruß Paul
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