PIC18F2420-I/SOC01 Microchip, PIC18F2420-I/SOC01 Datasheet - Page 15

• Manufacturer Part Number: PIC18F2420-I/SOC01
• Description: 28 pin, 16 kb flash, 3804 ram, 25 i/o...
• Manufacturer: Microchip

TABLE 1-2:
© 2008 Microchip Technology Inc.
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT
RA5/AN4/SS/HLVDIN/
C2OUT
RA6
RA7
Legend: TTL = TTL compatible input
Note 1: Default assignment for CCP2 when Configuration bit, CCP2MX, is set.
RA0
AN0
RA1
AN1
RA2
AN2
V
CV
RA3
AN3
V
RA4
T0CKI
C1OUT
RA5
AN4
SS
HLVDIN
C2OUT
REF
REF
2: Alternate assignment for CCP2 when Configuration bit, CCP2MX, is cleared.
REF
Pin Name
-
+
ST = Schmitt Trigger input with CMOS levels
O
REF
REF
= Output
-/CV
+
PIC18F2420/2520 PINOUT I/O DESCRIPTIONS (CONTINUED)
REF
SPDIP,
SOIC
Pin Number
2
3
4
5
6
7
QFN
27
28
1
2
3
4
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
I
I
I
I
I
PIC18F2420/2520/4420/4520
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
—
—
PORTA is a bidirectional I/O port.
Digital I/O.
Analog input 0.
Digital I/O.
Analog input 1.
Digital I/O.
Analog input 2.
A/D reference voltage (low) input.
Comparator reference voltage output.
Digital I/O.
Analog input 3.
A/D reference voltage (high) input.
Digital I/O.
Timer0 external clock input.
Comparator 1 output.
Digital I/O.
Analog input 4.
SPI slave select input.
High/Low-Voltage Detect input.
Comparator 2 output.
See the OSC2/CLKO/RA6 pin.
See the OSC1/CLKI/RA7 pin.
CMOS = CMOS compatible input or output
I
P
= Input
= Power
Description
DS39631E-page 13