PIC16F882-I datasheet(52/328 Pages) MICROCHIP

52 / 328 page

PIC16F882/883/884/886/887

DS41291F-page 50

3.4.4

PIN DESCRIPTIONS AND

DIAGRAMS

Each PORTB 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 SSP, I2C or interrupts, refer to the appropriate

section in this data sheet.

3.4.4.1

RB0/AN12/INT

Figure 3-9 shows the diagram for this pin. This pin is

configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• an external edge triggered interrupt

3.4.4.2

RB1/AN10/P1C(1)/C12IN3-

Figure 3-9 shows the diagram for this pin. This pin is

configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• a PWM output

(1)

• an analog input to Comparator C1 or C2

3.4.4.3

RB2/AN8/P1B(1)

Figure 3-9 shows the diagram for this pin. This pin is

configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• a PWM output

(1)

3.4.4.4

RB3/AN9/PGM/C12IN2-

Figure 3-9 shows the diagram for this pin. This pin is

configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• Low-voltage In-Circuit Serial Programming enable

• an analog input to Comparator C1 or C2

FIGURE 3-9:

BLOCK DIAGRAM OF

RB<3:0>

Note 1: P1C is available on PIC16F882/883/886

only.

Note 1: P1B is available on PIC16F882/883/886

only.

I/O Pin

VDD

VSS

VDD

Weak

Analog(1)

Input Mode

Data Bus

WPUB

PORTB

TRISB

To A/D Converter

RB0/INT

Analog(1)

Input Mode

RBPU

Note

ANSELH determines Analog Input mode.

RB3/PGM

To Comparator (RB1, RB3)

RD PORTB

PORTB

IOCB

Interrupt-on-

Change

CCP1OUT Enable

CCP1OUT

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