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PIC18F4520E/SP Fiches technique(PDF) 243 Page - Microchip Technology

No de pièce PIC18F4520E/SP
Description  28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
PDF  390 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4520E/SP Fiches technique(HTML) 243 Page - Microchip Technology

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 2004 Microchip Technology Inc.
Preliminary
DS39631A-page 241
PIC18F2420/2520/4420/4520
FIGURE 21-2:
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
TABLE 21-1:
REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
CVREF Output
+
–
CVREF
Module
Voltage
Reference
Output
Impedance
R(1)
RA2
Note
1:
R is dependent upon the voltage reference configuration bits, CVRCON<3:0> and CVRCON<5>.
PIC18FXXXX
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset
Values
on page
CVRCON
CVREN
CVROE
CVRR
CVRSS
CVR3
CVR2
CVR1
CVR0
51
CMCON
C2OUT
C1OUT
C2INV
C1INV
CIS
CM2
CM1
CM0
51
TRISA
TRISA7(1) TRISA6(1) PORTA Data Direction Control Register
52
Legend: Shaded cells are not used with the comparator voltage reference.
Note 1:
PORTA pins are enabled based on oscillator configuration.



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