PIC16F1826 datasheet(9/410 Pages) MICROCHIP

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 2011-2012 Microchip Technology Inc.

DS41441C-page 9

PIC12(L)F1840

TABLE 1-2:

PIC12(L)F1840 PINOUT DESCRIPTION

Name

Function

Input

Type

Output

Type

Description

RA0/AN0/CPS0/C1IN+/

DACOUT/TX/CK/SDO/

SS(1)/P1B/MDOUT/ICSPDAT/

ICDDAT

RA0

TTL

CMOS General purpose I/O.

AN0

—

ADC Channel 0 input.

CPS0

—

Capacitive sensing input 0.

C1IN+

—

Comparator C1 positive input.

DACOUT

—

Digital-to-Analog Converter output.

—

CMOS USART asynchronous transmit.

CMOS USART synchronous clock.

SDO

—

CMOS SPI data output.

—

Slave Select input.

P1B

—

CMOS PWM output.

MDOUT

—

CMOS Modulator output.

ICSPDAT

CMOS ICSP™ Data I/O.

RA1/AN1/CPS1/VREF/C1IN0-/

SRI/RX/DT/SCL/SCK/

MDMIN/ICSPCLK/ICDCLK

RA1

TTL

CMOS General purpose I/O.

AN1

—

ADC Channel 1 input.

CPS1

—

Capacitive sensing input 1.

VREF

—

ADC and DAC Positive Voltage Reference input.

C1IN0-

—

Comparator C1 negative input.

SRI

—

SR Latch input.

—

USART asynchronous input.

CMOS USART synchronous data.

SCL

I2C™

I2C™ clock.

SCK

CMOS SPI clock.

MDMIN

—

Modulator source input.

ICSPCLK

—

Serial Programming Clock.

RA2/AN2/CPS2/C1OUT/SRQ/

T0CKI/CCP1/P1A/FLT0/

SDA/SDI/INT/MDCIN1

RA2

CMOS General purpose I/O.

AN2

—

ADC Channel 2 input.

CPS2

—

Capacitive sensing input 2.

C1OUT

—

CMOS Comparator C1 output.

SRQ

—

CMOS SR Latch non-inverting output.

T0CKI

—

Timer0 clock input.

CCP1

CMOS Capture/Compare/PWM 1.

P1A

—

CMOS PWM output.

FLT0

—

ECCP Auto-Shutdown Fault input.

SDA

I2C™

I2C™ data input/output.

SDI

CMOS

—

SPI data input.

INT

—

External interrupt.

MDCIN1

—

Modulator Carrier Input 1.

RA3/SS/T1G(1)/VPP/MCLR

RA3

TTL

—

General purpose input.

—

Slave Select input.

T1G

—

Timer1 Gate input.

VPP

—

Programming voltage.

MCLR

—

Master Clear with internal pull-up.

Legend: AN = Analog input or output CMOS= CMOS compatible input or output

= Open Drain

TTL = TTL compatible input

= Schmitt Trigger input with CMOS levels I2C™ = Schmitt Trigger input with I2C

HV = High Voltage

XTAL = Crystal

levels

Note 1:

Alternate pin function selected with the APFCON (Register 12-1) register.

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