PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 53

• Manufacturer Part Number: PIC16F747
• Description: 28/40/44-pin, 8-bit Cmos Flash Microcontrollers With 10-bit A/d And Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

FIGURE 5-3:
FIGURE 5-4:
 2004 Microchip Technology Inc.
Data
Bus
WR
PORTA
WR
TRISA
Data
Bus
WR
PORTA
WR
TRISA
TMR0 Clock Input
RD PORTA
RD PORTA
TRIS Latch
D
Data Latch
D
CK
CK
To A/D Module Channel Input
To A/D Module V
D
TRIS Latch
To Comparator
D
Data Latch
CK
CK
RD TRISA
RD TRISA
BLOCK DIAGRAM OF RA2/AN2/V
BLOCK DIAGRAM OF RA4/T0CKI/C1OUT PIN
Q
Q
Q
Q
Q
Q
Q
Q
Comparator 1 Output
REF
-
Comparator Mode = 011, 101, 001
CVROE
CV
REF
Q
REF
1
0
-/CV
EN
Input Mode
D
REF
Analog
Q
PIN
EN
V
P
V
N
Input Mode
DD
SS
D
Input Buffer
Schmitt Trigger
Analog
Input Buffer
TTL
PIC16F7X7
V
N
SS
RA2/AN2/V
CV
DS30498C-page 51
REF
RA4/T0CKI/
C1OUT pin
pin
REF
-/