PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 21

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

TABLE 1-3:
© 2007 Microchip Technology Inc.
RC0/T1OSO/T13CKI
RC1/T1OSI/CCP2
RC2/CCP1/P1A
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
Legend: TTL = TTL compatible input
Note 1:
RC0
T1OSO
T13CKI
RC1
T1OSI
CCP2
RC2
CCP1
P1A
RC3
SCK
SCL
RC4
SDI
SDA
RC5
SDO
RC6
TX
CK
RC7
RX
DT
2:
3:
Pin Name
(1)
ST = Schmitt Trigger input with CMOS levels
I
Default assignment for CCP2 when Configuration bit, CCP2MX, is set.
Alternate assignment for CCP2 when Configuration bit, CCP2MX, is cleared.
Special ICPORT features available in select circumstances. See Section 23.9 “Special ICPORT Features
(44-Pin TQFP Packages Only)” for more information.
2
C = ST with I
PIC18F4221/4321 PINOUT I/O DESCRIPTIONS (CONTINUED)
PDIP
15
16
17
18
23
24
25
26
2
C™ or SMB levels
Pin Number
QFN TQFP
34
35
36
37
42
43
44
1
32
35
36
37
42
43
44
1
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
I
I
I
I
Preliminary
Buffer
CMOS
Type
I
I
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
—
—
—
—
2
2
C
C
PORTC is a bidirectional I/O port.
CMOS = CMOS compatible input or output
I
O
PIC18F4321 FAMILY
Digital I/O.
Timer1 oscillator analog output.
Timer1/Timer3 external clock input.
Digital I/O.
Timer1 oscillator analog input.
Capture 2 input/Compare 2 output/PWM 2 output.
Digital I/O.
Capture 1 input/Compare 1 output/PWM 1 output.
Enhanced CCP1 output.
Digital I/O.
Synchronous serial clock input/output for
SPI mode.
Synchronous serial clock input/output for I
mode.
Digital I/O.
SPI data in.
I
Digital I/O.
SPI data out.
Digital I/O.
EUSART asynchronous transmit.
EUSART synchronous clock (see related RX/DT).
Digital I/O.
EUSART asynchronous receive.
EUSART synchronous data (see related TX/CK).
2
C data I/O.
= Input
= Output
Description
P = Power
DS39689E-page 19
2
C™