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PIC12F635E/PQTP 데이터시트(PDF) 46 Page - Microchip Technology

부품명 PIC12F635E/PQTP
상세설명  8/14-PIN FLASH-BASED, 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
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PIC12F635E/PQTP 데이터시트(HTML) 46 Page - Microchip Technology

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PIC12F635/PIC16F636/639
DS41232B-page 44
Preliminary
© 2005 Microchip Technology Inc.
4.2.4
PIN DESCRIPTIONS AND
DIAGRAMS
Each PORTA pin is multiplexed with other functions. The
pins and their combined functions are briefly described
here. For specific information about individual functions,
such as the comparator, refer to the appropriate section
in this data sheet.
4.2.4.1
RA0/C1IN+/ICSPDAT/ULPWU
Figure 4-2 shows the diagram for this pin. The RA0 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog input to the comparator
• In-Circuit Serial Programming™ data
• an analog input for the Ultra Low-Power Wake-up
FIGURE 4-1:
BLOCK DIAGRAM OF RA0
I/O pin
VDD
VSS
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
VDD
D
EN
Q
D
EN
Q
Weak
RD PORTA
RD
WR
WR
RD
WR
IOCA
RD
IOCA
Interrupt-on-
Analog
Input Mode(1)
Change
Q3
WR
RD
01
IULP
WPUDA
Data Bus
WPUDA
PORTA
TRISA
TRISA
PORTA
Note
1:
Comparator mode determines Analog Input mode.
VT
ULPWUE
–
+
VSS
D
Q
CK
Q
WR
RD
WDA
WDA
Analog
Input Mode(1)
RAPU
Weak



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