PIC12F683-ESLASHMDQTP datasheet(40/176 Pages) MICROCHIP

40 / 176 page

PIC12F683

DS41211D-page 38

4.2.5.4

GP3/MCLR/VPP

Figure 4-4 shows the diagram for this pin. The GP3 pin

is configurable to function as one of the following:

• a general purpose input

• as Master Clear Reset with weak pull-up

FIGURE 4-4:

BLOCK DIAGRAM OF GP3

4.2.5.5

GP4/AN3/T1G/OSC2/CLKOUT

Figure 4-5 shows the diagram for this pin. The GP4 pin

is configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• a Timer1 gate input

• a crystal/resonator connection

• a clock output

FIGURE 4-5:

BLOCK DIAGRAM OF GP4

Input

VSS

Data

RD GPIO

IOC

Reset

MCLRE

VSS

MCLRE

VDD

Weak

MCLRE

Interrupt-on-

change

GPIO

IOC

Bus

TRISIO

I/O pin

VDD

VSS

VDD

Weak

Analog

Input Mode

Data

WPU

GPIO

TRISIO

IOC

FOSC/4

To A/D Converter

Oscillator

Circuit

OSC1

CLKOUT

Enable

Analog

Input Mode

GPPU

RD GPIO

To T1G

INTOSC/

RC/EC(2)

CLK(1)

Modes

CLKOUT

Enable

Note 1: CLK modes are XT, HS, LP, optional LP oscillator and

CLKOUT Enable.

2: With CLKOUT option.

Interrupt-on-

change

Bus

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