Voltage reference, Atmega4hvd/8hvd – Rainbow Electronics ATmega8HVD User Manual
Page 99
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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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