PIC18F23K22 Datasheet, PDF(22/492 Page) Microchip Technology – 28/40/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology

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PIC18F23K22 Datasheet, PDF (22/492 Pages) Microchip Technology – 28/40/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology

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PIC18(L)F2X/4XK22

TABLE 1-3: PIC18(L)F4XK22 PINOUT I/O DESCRIPTIONS (CONTINUED)

Pin Number

PDIP TQFP QFN

Pin Name

Pin Buffer

Type Type

Description

7

24

24 RA5/C2OUT/SRNQ/SS1/HLVDIN/AN4

RA5

I/O

TTL Digital I/O.

C2OUT

O CMOS Comparator C2 output.

SRNQ

O

TTL SR Latch Q output.

SS1

I

TTL SPI slave select input (MSSP1).

HLVDIN

I Analog High/Low-Voltage Detect input.

AN4

I Analog Analog input 4.

14 31

33 RA6/CLKO/OSC2

RA6

I/O

TTL Digital I/O.

CLKO

O

â In RC mode, OSC2 pin outputs CLKOUT which

has 1/4 the frequency of OSC1 and denotes the

instruction cycle rate.

OSC2

O

â Oscillator crystal output. Connects to crystal or

resonator in Crystal Oscillator mode.

13 30

32 RA7/CLKI/OSC1

RA7

I/O

TTL Digital I/O.

CLKI

I CMOS External clock source input. Always associated

with pin function OSC1.

OSC1

I

ST Oscillator crystal input or external clock source

input ST buffer when configured in RC mode;

CMOS otherwise.

33

8

9 RB0/INT0/FLT0/SRI/AN12

RB0

I/O

TTL Digital I/O.

INT0

I

ST External interrupt 0.

FLT0

I

ST PWM Fault input for ECCP Auto-Shutdown.

SRI

I

ST SR Latch input.

AN12

I Analog Analog input 12.

34

9

10 RB1/INT1/C12IN3-/AN10

RB1

I/O

TTL Digital I/O.

INT1

I

ST External interrupt 1.

C12IN3-

I Analog Comparators C1 and C2 inverting input.

AN10

I Analog Analog input 10.

35 10

11 RB2/INT2/CTED1/AN8

RB2

I/O

TTL Digital I/O.

INT2

I

ST External interrupt 2.

CTED1

I

ST CTMU Edge 1 input.

AN8

I Analog Analog input 8.

36 11

12 RB3/CTED2/P2A/CCP2/C12IN2-/AN9

RB3

I/O

TTL Digital I/O.

CTED2

P2A(2)

CCP2(2)

I

ST CTMU Edge 2 input.

O CMOS Enhanced CCP2 PWM output.

I/O

ST Capture 2 input/Compare 2 output/PWM 2 output.

C12IN2-

I Analog Comparators C1 and C2 inverting input.

AN9

I Analog Analog input 9.

Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output; ST = Schmitt Trigger input with CMOS levels;

I = Input; O = Output; P = Power.

Note 1: Default pin assignment for P2B, T3CKI, CCP3/P3A and CCP2/P2A when Configuration bits PB2MX, T3CMX, CCP3MX

and CCP2MX are set.

2: Alternate pin assignment for P2B, T3CKI, CCP3/P3A and CCP2/P2A when Configuration bits PB2MX, T3CMX,

CCP3MX and CCP2MX are clear.

DS41412B-page 22

Preliminary

ï£ 2010 Microchip Technology Inc.

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