PIC18F87K90 Datasheet, PDF (23/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC18F87K90 FAMILY
TABLE 1-4: PIC18F8XK90 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number _{Pin Buffer}
TQFP ^{Type Type}
Description
PORTA is a bidirectional I/O port.
RA0/AN0/ULPWU
RA0
AN0
ULPWU
30
I/O TTL
Digital I/O.
I Analog Analog Input 0.
I Analog Ultra low-power wake-up input.
RA1/AN1/SEG18
RA1
AN1
SEG18
29
I/O TTL
Digital I/O.
I Analog Analog Input 1.
O Analog SEG18 output for LCD.
RA2/AN2/VREF-
RA2
AN2
VREF-
28
I/O TTL
Digital I/O.
I Analog Analog Input 2.
I Analog A/D reference voltage (low) input.
RA3/AN3/VREF+
RA3
AN3
VREF+
27
I/O TTL
Digital I/O.
I Analog Analog Input 3.
I Analog A/D reference voltage (high) input.
RA4/T0CKI/SEG14
RA4
T0CKI
SEG14
34
I/O ST
Digital I/O.
I
ST
Timer0 external clock input.
O Analog SEG14 output for LCD.
RA5/AN4/SEG15/T1CKI/
33
T3G/HLVDIN
RA5
I/O TTL
Digital I/O.
AN4
I Analog Analog Input 4.
SEG15
O Analog SEG15 output for LCD.
T1CKI
I
ST
Timer1 clock input.
T3G
I
ST
Timer3 external clock gate input.
HLVDIN
I Analog High/Low-Voltage Detect (HLVD) input.
RA6
See the OSC2/CLKO/RA6 pin.
RA7
Legend:
Note 1:
2:
3:
4:
See the OSC1/CLKI/RA7 pin.
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
I = Input
P = Power
I²C™ = I²C/SMBus
CMOS
Analog
O
OD
= CMOS compatible input or output
= Analog input
= Output
= Open-Drain (no P diode to VDD)
Default assignment for ECCP2 when the CCP2MX Configuration bit is set.
Alternate assignment for ECCP2 when the CCP2MX Configuration bit is cleared.
Not available on PIC18F65K90 and PIC18F85K90 devices.
The CCP6, CCP7, CCP8 and CCP9 pin placement depends on the ECCPMX Configuration bit setting.
 2010 Microchip Technology Inc.
Preliminary
DS39957B-page 23