PIC16F526-ISLASHP datasheet(13/122 Pages) MICROCHIP

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DS41326D-page 13

PIC16F526

TABLE 3-2:

PIC16F526 PINOUT DESCRIPTION

Name

Function

Input

Type

Output

Type

Description

RB0//C1IN+/AN0/

ICSPDAT

RB0

TTL

CMOS Bidirectional I/O pin. Can be software programmed for internal

weak pull-up and wake-up from Sleep on pin change.

C1IN+

—

Comparator 1 input.

AN0

—

ADC channel input.

ICSPDAT

CMOS ICSP™ mode Schmitt Trigger.

RB1/C1IN-/AN1/

ICSPCLK

RB1

TTL

CMOS Bidirectional I/O pin. Can be software programmed for internal

weak pull-up and wake-up from Sleep on pin change.

C1IN-

—

Comparator 1 input.

AN1

—

ADC channel input.

ICSPCLK

CMOS ICSP mode Schmitt Trigger.

RB2/C1OUT/AN2

RB2

TTL

CMOS Bidirectional I/O pin.

C1OUT

—

CMOS Comparator 1 output.

AN2

—

ADC channel input.

RB3/MCLR/VPP

RB3

TTL

—

Input pin. Can be software programmed for internal weak

pull-up and wake-up from Sleep on pin change.

MCLR

—

Master Clear (Reset). When configured as MCLR, this pin is

an active-low Reset to the device. Voltage on MCLR/VPP must

not exceed VDD during normal device operation or the device

will enter Programming mode. Weak pull-up always on if

configured as MCLR.

VPP

—

Programming voltage input.

RB4/OSC2/CLKOUT

RB4

TTL

CMOS Bidirectional I/O pin. Can be software programmed for internal

weak pull-up and wake-up from Sleep on pin change.

OSC2

—

XTAL

Oscillator crystal output. Connections to crystal or resonator in

Crystal Oscillator mode (XT, HS and LP modes only, PORTB

in other modes).

CLKOUT

—

CMOS EXTRC/INTRC CLKOUT pin (FOSC/4).

RB5/OSC1/CLKIN

RB5

TTL

CMOS Bidirectional I/O pin.

OSC1

XTAL

—

Oscillator crystal input.

CLKIN

—

External clock source input.

RC0/C2IN+

RC0

TTL

CMOS Bidirectional I/O port.

C2IN+

—

Comparator 2 input.

RC1/C2IN-

RC1

TTL

CMOS Bidirectional I/O port.

C2IN-

—

Comparator 2 input.

RC2/CVREF

RC2

TTL

CMOS Bidirectional I/O port.

CVREF

—

Programmable Voltage Reference output.

RC3

TTL

CMOS Bidirectional I/O port.

RC4/C2OUT

RC4

TTL

CMOS Bidirectional I/O port.

C2OUT

—

CMOS Comparator 2 output.

RC5/T0CKI

RC5

TTL

CMOS Bidirectional I/O port.

T0CKI

—

Timer0 Schmitt Trigger input pin.

VDD

—

Positive supply for logic and I/O pins.

VSS

—

Ground reference for logic and I/O pins.

Legend: I = Input, O = Output, I/O = Input/Output, P = Power, — = Not used, TTL = TTL input,

ST = Schmitt Trigger input, HV = High Voltage

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