PIC12F629-I View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC12F629-I

8-Pin FLASH-Based 8-Bit CMOS Microcontrollers

Microchip Technology 

PIC12F629/675

3.3 Pin Descriptions and Diagrams

Each GPIO 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 or the A/D, refer to the

appropriate section in this Data Sheet.

3.3.1 GP0/AN0/CIN+

Figure 3-1 shows the diagram for this pin. The GP0 pin

is configurable to function as one of the following:

• a general purpose I/O

• an analog input for the A/D (PIC12F675 only)

• an analog input to the comparator

3.3.2 GP1/AN1/CIN-/VREF

Figure 3-1 shows the diagram for this pin. The GP1 pin

is configurable to function as one of the following:

• as a general purpose I/O

• an analog input for the A/D (PIC12F675 only)

• an analog input to the comparator

• a voltage reference input for the A/D (PIC12F675

only)

FIGURE 3-1:

Data Bus

DQ

WR

WPU

CK Q

RD

WPU

BLOCK DIAGRAM OF GP0

AND GP1 PINS

Analog

Input Mode

VDD

Weak

GPPU

WR

PORT

DQ

CK Q

WR

TRISIO

DQ

CK Q

RD

TRISIO

RD

PORT

WR

IOC

DQ

CK Q

RD

IOC

Interrupt-on-Change

VDD

I/O pin

VSS

Analog

Input Mode

QD

EN

QD

EN

RD PORT

To Comparator

To A/D Converter

DS41190C-page 22

 2003 Microchip Technology Inc.

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