PIC12F1840 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC12F1840

8-Pin Flash Microcontrollers with XLP Technology

Microchip Technology 

PIC12(L)F1840

TABLE 1-2: PIC12(L)F1840 PINOUT DESCRIPTION (CONTINUED)

Name

Function

Input Output

Type Type

Description

RA4/AN3/CPS3/OSC2/

CLKOUT/T1OSO/C1IN1-/CLKR/

SDO(1)/CK(1)/TX(1)/P1B(1)/

T1G/MDCIN2

RA4

AN3

CPS3

OSC2

TTL CMOS General purpose I/O.

AN

— ADC Channel 3 input.

AN

— Capacitive sensing input 3.

— XTAL Crystal/Resonator (LP, XT, HS modes).

CLKOUT — CMOS FOSC/4 output.

T1OSO XTAL XTAL Timer1 oscillator connection.

C1IN1- AN

— Comparator C1 negative input.

CLKR

— CMOS Clock Reference output.

SDO

— CMOS SPI data output.

CK

ST CMOS USART synchronous clock.

TX

— CMOS USART asynchronous transmit.

P1B

— CMOS PWM output.

T1G

ST

— Timer1 Gate input.

MDCIN2 ST

— Modulator Carrier Input 2.

RA5/CLKIN/OSC1/T1OSI/

T1CKI/SRNQ/P1A(1)/CCP1(1)/

DT(1)/RX(1)

RA5

CLKIN

OSC1

TTL

CMOS

XTAL

CMOS

—

—

General purpose I/O.

External clock input (EC mode).

Crystal/Resonator (LP, XT, HS modes).

T1OSI XTAL XTAL Timer1 oscillator connection.

T1CKI

ST

— Timer1 clock input.

SRNQ

— CMOS SR Latch inverting output.

P1A

— CMOS PWM output.

CCP1

ST CMOS Capture/Compare/PWM 1.

DT

ST CMOS USART synchronous data.

RX

ST

— USART asynchronous input.

VDD

VDD Power — Positive supply.

VSS

VSS Power — Ground reference.

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

OD = Open Drain

TTL = TTL compatible input ST = 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.

DS41441C-page 10

 2011-2012 Microchip Technology Inc.

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