参数资料
型号: PIC16F676-E/SL
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO14
封装: 3.90 MM, LEAD FREE, PLASTIC, SOIC-14
文件页数: 52/132页
文件大小: 1344K
代理商: PIC16F676-E/SL
PIC16F630/676
DS40039F-page 26
2010 Microchip Technology Inc.
3.2.3.5
RA4/AN3/T1G/OSC2/CLKOUT
Figure 3-4 shows the diagram for this pin. The RA4 pin
is configurable to function as one of the following:
a general purpose I/O
an analog input for the A/D (PIC16F676 only)
a TMR1 gate input
a crystal/resonator connection
a clock output
FIGURE 3-4:
BLOCK DIAGRAM OF RA4
3.2.3.6
RA5/T1CKI/OSC1/CLKIN
Figure 3-5 shows the diagram for this pin. The RA5 pin
is configurable to function as one of the following:
a general purpose I/O
a TMR1 clock input
a crystal/resonator connection
a clock input
FIGURE 3-5:
BLOCK DIAGRAM OF RA5
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
Analog
Input Mode
Data Bus
WR
WPUA
RD
WPUA
RD
PORTA
WR
PORTA
WR
TRISA
RD
TRISA
WR
IOCA
RD
IOCA
Interrupt-on-Change
FOSC/4
To A/D Converter
Oscillator
Circuit
OSC1
CLKOUT
0
1
CLKOUT
Enable
Analog
Input Mode
RAPU
RD PORTA
To TMR1 T1G
INTOSC/
RC/EC(2)
CLK(1)
Modes
CLKOUT
Enable
Note 1: CLK modes are XT, HS, LP, LPTMR1 and CLKOUT
Enable.
2: With CLKOUT option.
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
Data Bus
WR
WPUA
RD
WPUA
RD
PORTA
WR
PORTA
WR
TRISA
RD
TRISA
WR
IOCA
RD
IOCA
Interrupt-on-Change
To TMR1 or CLKGEN
INTOSC
Mode
RD PORTA
INTOSC
Mode
RAPU
Oscillator
Circuit
OSC2
(1)
Note
1: Timer1 LP Oscillator enabled.
2: When using Timer1 with LP oscillator, the Schmitt
Trigger is by-passed.
TMR1LPEN(1)
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