PIC18F2220 MICROCHIP [Microchip Technology], PIC18F2220 Datasheet - Page 13

• 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]

TABLE 1-2:
 2003 Microchip Technology Inc.
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
2:
REF
Pin Name
PP
-
+
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.
/RE3
REF
REF
-/CV
+
= Output
PIC18F2220/2320 PINOUT I/O DESCRIPTIONS
REF
Pin Number Pin
PDIP SOIC
10
1
9
2
3
4
5
6
7
10
1
9
2
3
4
5
6
7
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
P
DD
I
I
I
I
I
I
I
I
I
I
I
I
I
I
PIC18F2220/2320/4220/4320
)
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
CMOS
ST/OD
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
DS39599C-page 11