
2007 Microchip Technology Inc.
DS39629C-page 25
PIC18F6390/6490/8390/8490
PORTE is a bidirectional I/O port.
LCDBIAS1
4
I
Analog
BIAS1 input for LCD.
LCDBIAS2
3
I
Analog
BIAS2 input for LCD.
LCDBIAS3
78
I
Analog
BIAS3 input for LCD.
COM0
77
O
Analog
COM0 output for LCD.
RE4/COM1
RE4
COM1
76
I/O
O
ST
Analog
Digital I/O.
COM1 output for LCD.
RE5/COM2
RE5
COM2
75
I/O
O
ST
Analog
Digital I/O.
COM2 output for LCD.
RE6/COM3
RE6
COM3
74
I/O
O
ST
Analog
Digital I/O.
COM3 output for LCD.
RE7/CCP2/SEG31
RE7
CCP2(2)
SEG31
73
I/O
O
ST
Analog
Digital I/O.
Capture 2 input/Compare 2 output/PWM2 output.
SEG31 output for LCD.
TABLE 1-3:
PIC18F8X90 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number Pin
Type
Buffer
Type
Description
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 VDD)
Note 1: Default assignment for CCP2 when Configuration bit, CCP2MX, is set.
2: Alternate assignment for CCP2 when Configuration bit, CCP2MX, is cleared.