PIC12F683 Data Sheet - Microchip
PIC12F683 Data Sheet - Microchip
PIC12F683 Data Sheet - Microchip
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<strong>PIC12F683</strong><br />
4.2.5.4 GP3/MCLR/VPP<br />
Figure 4-4 shows the diagram for this pin. The GP3 pin<br />
is configurable to function as one of the following:<br />
• a general purpose input<br />
• as Master Clear Reset with weak pull-up<br />
FIGURE 4-4:<br />
BLOCK DIAGRAM OF GP3<br />
VDD<br />
4.2.5.5 GP4/AN3/T1G/OSC2/CLKOUT<br />
Figure 4-5 shows the diagram for this pin. The GP4 pin<br />
is configurable to function as one of the following:<br />
• a general purpose I/O<br />
• an analog input for the ADC<br />
• a Timer1 gate input<br />
• a crystal/resonator connection<br />
• a clock output<br />
MCLRE<br />
Weak<br />
FIGURE 4-5:<br />
BLOCK DIAGRAM OF GP4<br />
<strong>Data</strong><br />
Bus<br />
RD<br />
TRISIO<br />
RD<br />
GPIO<br />
Reset<br />
VSS<br />
MCLRE<br />
MCLRE<br />
VSS<br />
Input<br />
pin<br />
<strong>Data</strong><br />
Bus<br />
WR<br />
WPU<br />
D<br />
CK<br />
Q<br />
Q<br />
Analog<br />
Input Mode<br />
CLK (1)<br />
Modes<br />
VDD<br />
Weak<br />
WR<br />
IOC<br />
RD<br />
IOC<br />
D<br />
Interrupt-onchange<br />
CK<br />
Q<br />
Q<br />
Q D<br />
EN<br />
Q D<br />
EN<br />
RD GPIO<br />
Q3<br />
RD<br />
WPU<br />
WR<br />
GPIO<br />
WR<br />
TRISIO<br />
RD<br />
TRISIO<br />
RD<br />
GPIO<br />
D<br />
CK<br />
D<br />
CK<br />
Q<br />
Q<br />
Q<br />
Q<br />
OSC1<br />
FOSC/4<br />
GPPU<br />
Oscillator<br />
Circuit<br />
CLKOUT<br />
Enable<br />
1<br />
0<br />
CLKOUT<br />
Enable<br />
INTOSC/<br />
RC/EC (2)<br />
CLKOUT<br />
Enable<br />
Analog<br />
Input Mode<br />
VDD<br />
I/O pin<br />
VSS<br />
D<br />
Q<br />
WR<br />
IOC<br />
RD<br />
IOC<br />
CK<br />
Q<br />
Q<br />
Q<br />
D<br />
EN<br />
D<br />
Q3<br />
Interrupt-onchange<br />
To T1G<br />
To A/D Converter<br />
EN<br />
RD GPIO<br />
Note 1: CLK modes are XT, HS, LP, optional LP oscillator and<br />
CLKOUT Enable.<br />
2: With CLKOUT option.<br />
DS41211D-page 38<br />
© 2007 <strong>Microchip</strong> Technology Inc.