PIC18F2220 MICROCHIP [Microchip Technology], PIC18F2220 Datasheet - Page 16

• Manufacturer Part Number: PIC18F2220
• Description: 28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2220/2320/4220/4320
TABLE 1-3:
DS39599C-page 14
MCLR/V
OSC1/CLKI/RA7
OSC2/CLKO/RA6
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT
RA5/AN4/SS/LVDIN/
C2OUT
RA6
RA7
Legend: TTL = TTL compatible input
Note 1:
MCLR
V
RE3
OSC1
CLKI
RA7
OSC2
CLKO
RA6
RA0
AN0
RA1
AN1
RA2
AN2
V
CV
RA3
AN3
V
RA4
T0CKI
C1OUT
RA5
AN4
SS
LVDIN
C2OUT
REF
REF
PP
Pin Name
2:
REF
PP
-
+
/RE3
REF
ST = Schmitt Trigger input with CMOS levels
O
OD = Open-drain (no diode to V
Default assignment for CCP2 when CCP2MX (CONFIG3H<0>) is set.
Alternate assignment for CCP2 when CCP2MX is cleared.
REF
-/CV
+
= Output
PIC18F4220/4320 PINOUT I/O DESCRIPTIONS
REF
PDIP TQFP QFN
13
14
1
2
3
4
5
6
7
Pin Number
18
30
31
19
20
21
22
23
24
18
32
33
19
20
21
22
23
24
DD
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
P
)
I
I
I
I
I
I
I
I
I
I
I
I
I
I
CMOS
Analog
Analog
Analog
Analog
Analog
Analog
Analog
ST/OD
Analog
Analog
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
—
—
—
—
Master Clear (input) or programming voltage (input).
Oscillator crystal or external clock input.
Oscillator crystal or clock output.
PORTA is a bidirectional I/O port.
Master Clear (Reset) input. This pin is an active-low
Reset to the device.
Programming voltage input.
Digital input.
Oscillator crystal input or external clock source input.
ST buffer when configured in RC mode, CMOS otherwise.
External clock source input. Always associated with
pin function OSC1. (See related OSC1/CLKI,
OSC2/CLKO pins.)
General purpose I/O pin.
Oscillator crystal output. Connects to crystal or resonator
in Crystal Oscillator mode.
In RC mode, OSC2 pin outputs CLKO which has 1/4 the
frequency of OSC1 and denotes the instruction cycle rate.
General purpose I/O pin.
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. Open-drain when configured as output.
Timer0 external clock input.
Comparator 1 output.
Digital I/O.
Analog input 4.
SPI slave select input.
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
 2003 Microchip Technology Inc.