PIC18F1XK22 Datasheet, PDF(13/388 Page) Microchip Technology – 20-Pin Flash Microcontrollers with nanoWatt XLP Technology

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PIC18F1XK22 Datasheet, PDF (13/388 Pages) Microchip Technology – 20-Pin Flash Microcontrollers with nanoWatt XLP Technology

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PIC18F1XK22/LF1XK22

TABLE 1-2: PIC18F1XK22/LF1XK22 PIN SUMMARY

Pin Name

Pin

Number

Pin

Type

Buffer

Type

Description

RA0/AN0/CVREF/VREF-/C1IN+/INT0/PGD

RA0

AN0

CVREF

VREF-

C1IN+

INT0

PGD

RA1/AN1/C12IN0-/VREF+/INT1/PGC

RA1

AN1

C12IN0-

VREF+

INT1

PGC

RA2/AN2/C1OUT/T0CKI/INT2/SRQ

RA2

AN2

C1OUT

T0CKI

INT2

SRQ

RA3/MCLR/VPP

RA3

MCLR

VPP

RA4/AN3/OSC2/CLKOUT

RA4

AN3

OSC2

CLKOUT

RA5/OSC1/CLKIN/T13CKI

RA5

OSC1

CLKIN

T13CKI

RB4/AN10/SDI/SDA

RB4

AN10

SDI

SDA

RB5/AN11/RX/DT

RB5

AN11

RX

DT

Legend:

TTL = TTL compatible input

ST = Schmitt Trigger input

O = Output

XTAL= Crystal Oscillator

19 16

I/O

I

O

I

I

I

I/O

TTL

Analog

Analog

Analog

Analog

ST

ST

Digital I/O

ADC channel 0

DAC reference voltage output

ADC and DAC reference voltage (low) input

Comparator C1 non-inverting input

External interrupt 0

ICSPâ¢ programming data pin

18 15

I/O

I

1

I

I

I/O

TTL

Analog

Analog

Analog

ST

ST

Digital I/O

ADC channel 1

Comparator C1 and C2 non-inverting input

ADC and DAC reference voltage (high) input

External interrupt 1

ICSPâ¢ programming clock pin

17 14

I/O

I

â

I

I

O

ST

Analog

CMOS

ST

ST

CMOS

Digital I/O

ADC channel 2

Comparator C1 output

Timer0 external clock input

External interrupt 2

SR latch output

41

I

ST

I

ST

P

â

Digital input

Active-low Master Clear with internal pull-up

High voltage programming input

3 20

I/O TTL

I Analog

O XTAL

O CMOS

Digital I/O

ADC channel 3

Oscillator crystal output. Connect to crystal or resonator

in Crystal Oscillator mode

In RC mode, OSC2 pin outputs CLKOUT which

has 1/4 the frequency of OSC1 and denotes

the instruction cycle rate

2 19

I/O TTL

I

XTAL

I CMOS

I

ST

Digital I/O

Oscillator crystal input or external clock input

ST buffer when configured in RC mode; analog other

wise

External clock source input. Always associated with the

pin function OSC1 (See related OSC1/CLKIN, OSC2,

CLKOUT pins

Timer0 and Timer3 external clock input

13 10

I/O TTL

I Analog

I

ST

I/O

ST

Digital I/O

ADC channel 10

SPI data in

I2Câ¢ data I/O

12 9

I/O

TLL

I Analog

I

ST

I/O

ST

Digital I/O

ADC channel 11

EUSART asynchronous receive

EUSART synchronous data (see related RX/TX)

CMOS = CMOS compatible input or output

I

= Input

P

= Power

ï£ 2010 Microchip Technology Inc.

Preliminary

DS41365D-page 13

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