Datasheet

PIC16F882/883/884/886/887
DS41291G-page 100  2006-2012 Microchip Technology Inc.
FIGURE 8-8: COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
FIGURE 8-9: COMPARATOR AND ADC VOLTAGE REFERENCE BLOCK DIAGRAM
VRR
8R
VR<3:0>
Analog
8RRR RR
16 Stages
MUX
Fixed Voltage
VREN
CV
REF
Reference
EN
FVREN
Sleep
HFINTOSC enable
0.6V
FixedRef
To Comparators
and ADC Module
To Comparators
and ADC Module
15
0
4
VREF+
VDD
VRSS = 0
VRSS = 1
VREF-
VRSS = 0
VRSS = 1
CVREF
VROE
C1RSEL
C2RSEL
VREF+
VCFG0
AVDD
VREF-
VCFG1
AVSS
VROE
VCFG1
CVREF
Comparator ADC
AVDD
AVSS
Voltage
Reference
Voltage
Reference
VRSS
VRSS
0
1
0
1
0
1
0
1