Datasheet

PIC18F87K90 FAMILY
DS39957D-page 20  2009-2011 Microchip Technology Inc.
PORTF is a bidirectional I/O port.
RF1/AN6/C2OUT/SEG19/
CTDIN
RF1
AN6
C2OUT
SEG19
CTDIN
17
I/O
I
O
O
I
ST
Analog
—
Analog
ST
Digital I/O.
Analog Input 6.
Comparator 2 output.
SEG19 output for LCD.
CTMU pulse delay input.
RF2/AN7/C1OUT/SEG20
RF2
AN7
C1OUT
SEG20
16
I/O
I
O
O
ST
Analog
—
Analog
Digital I/O.
Analog Input 7.
Comparator 1 output.
SEG20 output for LCD.
RF3/AN8/SEG21/C2INB/
CTMUI
RF3
AN8
SEG21
C2INB
CTMUI
15
I/O
I
O
I
O
ST
Analog
Analog
Analog
—
Digital I/O.
Analog Input 8.
SEG21 output for LCD.
Comparator 2 Input B.
CTMU pulse generator charger for the C2INB
comparator input.
RF4/AN9/SEG22/C2INA
RF4
AN9
SEG22
C2INA
14
I/O
I
O
I
ST
Analog
Analog
Analog
Digital I/O.
Analog Input 9.
SEG22 output for LCD
Comparator 2 Input A.
RF5/AN10/CV
REF/
SEG23/C1INB
RF5
AN10
CV
REF
SEG23
C1INB
13
I/O
I
O
O
I
ST
Analog
Analog
Analog
Analog
Digital I/O.
Analog Input 10.
Comparator reference voltage output.
SEG23 output for LCD.
Comparator 1 Input B.
RF6/AN11/SEG24/C1INA
RF6
AN11
SEG24
C1INA
12
I/O
I
O
I
ST
Analog
Analog
Analog
Digital I/O.
Analog Input 11.
SEG24 output for LCD
Comparator 1 Input A.
RF7/AN5/SS1
/SEG25
RF7
AN5
SS1
SEG25
11
I/O
O
I
O
ST
AnalogT
TL
Analog
Digital I/O.
Analog Input 5.
SPI1 slave select input.
SEG25 output for LCD.
TABLE 1-3: PIC18F6XK90 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
QFN/TQFP
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels Analog = Analog input
I = Input O = Output
P = Power OD = Open-Drain (no P diode to V
DD)
I
2
C™ = I
2
C/SMBus
Note 1: Default assignment for ECCP2 when the CCP2MX Configuration bit is set.
2: Alternate assignment for ECCP2 when the CCP2MX Configuration bit is cleared.
3: Not available on PIC18F65K90 and PIC18F85K90 devices.