Rainbow-electronics ATmega8HVD Manuel d'utilisateur télécharger pdf (Page 99)

8052B–AVR–09/08

ATmega4HVD/8HVD

18. Voltage Reference

ATmega4HVD/8HVD features an internal bandgap reference. This reference is an input refer-

ence to the ADC, the Battery Protection module, the Voltage Regulator, and the Black-out

Detection. The bandgap reference voltage cannot be observed directly at any output in normal

operation. During factory testing, the bandgap reference will be calibrated. This final calibra-

tion cannot be changed by software. See ”System and Reset Characteristics” on page 144 for

details.

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Rainbow-electronics ATmega8HVD Manuel d'utilisateur Page 99