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PIC16F87 Fiches technique(PDF) 53 Page - Microchip Technology

No de pièce PIC16F87
Description  18/20/28-Pin Enhanced Flash MCUs with nanoWatt Technology
PDF  230 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F87 Fiches technique(HTML) 53 Page - Microchip Technology

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 2002-2013 Microchip Technology Inc.
DS30487D-page 53
PIC16F87/88
FIGURE 5-2:
BLOCK DIAGRAM OF RA3/AN3/VREF+/C1OUT PIN
FIGURE 5-3:
BLOCK DIAGRAM OF RA2/AN2/CVREF/VREF- PIN
Data
Bus
Q
D
Q
CK
N
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD TRISA
RD PORTA
VSS
RA3 pin
Q
D
Q
CK
D
Q
EN
To A/D Module Channel Input (PIC16F88 only)
Comparator 1 Output
Comparator Mode = 110
VDD
Analog
Input Mode
To A/D Module Channel VREF+ Input (PIC16F88 only)
P
VDD
To Comparator
VSS
Input Buffer
TTL
Data
Bus
Q
D
Q
CK
P
N
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD TRISA
RD PORTA
Analog
VSS
VDD
RA2 pin
Q
D
Q
CK
D
Q
EN
To Comparator
TTL
Input Buffer
Input Mode
VDD
To A/D Module Channel Input (PIC16F88 only)
CVROE
CVREF
To A/D Module VREF- (PIC16F88 only)



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