參數(shù)資料
型號(hào): 16F630
廠商: Microchip Technology Inc.
英文描述: 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers
中文描述: 14引腳基于閃存的8位CMOS微控制器
文件頁數(shù): 24/132頁
文件大小: 2651K
代理商: 16F630
PIC16F630/676
DS40039C-page 22
2003 Microchip Technology Inc.
3.2.3
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 individ-
ual functions such as the comparator or the A/D, refer
to the appropriate section in this Data Sheet.
3.2.3.1
RA0/AN0/CIN+
Figure 3-1 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 for the A/D (PIC16F676 only)
an analog input to the comparator
3.2.3.2
RA1/AN1/CIN-/V
REF
Figure 3-1 shows the diagram for this pin. The RA1 pin
is configurable to function as one of the following:
as a general purpose I/O
an analog input for the A/D (PIC16F676 only)
an analog input to the comparator
a voltage reference input for the A/D (PIC16F676
only)
FIGURE 3-1:
BLOCK DIAGRAM OF RA0
AND RA1 PINS
I/O pin
V
DD
V
SS
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
D
Q
CK
Q
V
DD
D
EN
Q
D
EN
Q
Weak
Data Bus
WR
WPUA
RD
WPUA
RD PORTA
RD
PORTA
WR
PORTA
WR
TRISA
RD
TRISA
WR
IOCA
RD
IOCA
Interrupt-on-Change
To Comparator
To A/D Converter
Analog
Input Mode
RAPU
Analog
Input Mode
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