Rainbow-electronics ATmega3290P_V Manual de usuario Pagina 319

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ATmega329/3290/649/6490
2552H–AVR–11/06
Note: 1. Voltage difference between channels.
LCD Controller Characteristics – Preliminary Data – TBD
Calibrated Internal RC Oscillator Accuracy
Notes: 1. Voltage range for ATmega329V/3290V/649V/6490V.
2. Voltage range for ATmega329/3290/649/6490.
V
INT
Internal Voltage Reference 1.0 1.1 1.2 V
R
REF
Reference Input Resistance 32 kΩ
R
AIN
Analog Input Resistance 100 MΩ
Table 142. LCD Controller Characteristics
Symbol Parameter Condition Min Typ Max Units
I
LCD
LCD Driver Current Total for All COM and SEG pins TBD µA
R
LCD
LCD Driver Output Resistance Per COM or SEG pin TBD kΩ
Table 141. ADC Characteristics (Continued)
Symbol Parameter Condition Min Typ Max Units
Table 143. Calibration Accuracy of Internal RC Oscillator
Frequency V
CC
Temperature Calibration Accuracy
Factory Calibration 8.0 MHz 3V 25°10%
User
Calibration
7.3 - 8.1 MHz
1.8V - 5.5V
(1)
2.7V - 5.5V
(2)
-40°C - 85°1%
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