PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 20

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

PIC18F4321 FAMILY
TABLE 1-3:
DS39689E-page 18
RB0/INT0/FLT0/AN12
RB1/INT1/AN10
RB2/INT2/AN8
RB3/AN9/CCP2
RB4/KBI0/AN11
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
Legend: TTL = TTL compatible input
Note 1:
RB0
INT0
FLT0
AN12
RB1
INT1
AN10
RB2
INT2
AN8
RB3
AN9
CCP2
RB4
KBI0
AN11
RB5
KBI1
PGM
RB6
KBI2
PGC
RB7
KBI3
PGD
2:
3:
Pin Name
(2)
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
33
34
35
36
37
38
39
40
2
C™ or SMB levels
Pin Number
QFN TQFP
10
12
14
15
16
17
11
9
10
14
15
16
17
11
8
9
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
I
I
I
I
I
I
I
I
I
I
I
I
Preliminary
Analog
Analog
Analog
Analog
Analog
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
ST
ST
ST
ST
PORTB is a bidirectional I/O port. PORTB can be
software programmed for internal weak pull-ups on all
inputs.
CMOS = CMOS compatible input or output
I
O
Digital I/O.
External interrupt 0.
PWM Fault input for Enhanced CCP1.
Analog input 12.
Digital I/O.
External interrupt 1.
Analog input 10.
Digital I/O.
External interrupt 2.
Analog input 8.
Digital I/O.
Analog input 9.
Capture 2 input/Compare 2 output/PWM 2 output.
Digital I/O.
Interrupt-on-change pin.
Analog input 11.
Digital I/O.
Interrupt-on-change pin.
Low-Voltage ICSP™ Programming enable pin.
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming
clock pin.
Digital I/O.
Interrupt-on-change pin.
In-Circuit Debugger and ICSP programming
data pin.
= Input
= Output
Description
© 2007 Microchip Technology Inc.
P = Power