MB9B510R Datasheet, PDF (107/129 Pages) SPANSION – This document states the current technical specifications regarding

DataSheet
Analog
signal source
ANxx
R_EXT ^{Analog input pin}
R_AIN
Comparator
C_AIN
(Equation 1) t_S ≥ ( R_AIN + R_EXT ) × C_AIN × 9
t_S:
R_AIN:
C_AIN:
R_EXT:
Sampling time
input resistance of A/D = 2 kΩ at 4.5 V < AV_CC < 5.5 V
input resistance of A/D = 3.8 kΩ at 2.7 V < AV_CC < 4.5 V
input capacity of A/D = 12.9 pF at 2.7 V < AV_CC < 5.5 V
Output impedance of external circuit
(Equation 2) t_C = t_CCK × 14
t_C:
Compare time
t_CCK: Compare clock cycle
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MB9B510R-DS706-00025-3v1-E, March 31, 2015