PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 23

• 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.
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
RE3
V
V
NC/ICCK/ICPGC
NC/ICDT/ICPGD
NC/ICRST/ICV
NC/ICPORTS
NC
Legend: TTL = TTL compatible input
Note 1:
SS
DD
RE0
RD
AN5
RE1
WR
AN6
RE2
CS
AN7
ICCK
ICPGC
ICDT
ICPGD
ICRST
ICV
ICPORTS
2:
3:
Pin Name
PP
(3)
(3)
(3)
(3)
(3)
(3)
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
(3)
PP
PIC18F4221/4321 PINOUT I/O DESCRIPTIONS (CONTINUED)
12, 31 6, 30,
11, 32 7, 8,
PDIP
10
—
—
—
—
—
—
2
8
9
C™ or SMB levels
Pin Number
28, 29
QFN TQFP
25
26
27
31
13
—
—
—
—
—
12, 13,
33, 34
6, 29
7, 28
25
26
27
12
13
33
34
—
Type
Pin
I/O
I/O
I/O
I/O
I/O
—
—
P
P
P
P
I
I
I
I
I
I
I
I
I
Preliminary
Analog
Analog
Analog
Analog
Buffer
Type
TTL
TTL
TTL
ST
ST
ST
ST
ST
ST
ST
ST
ST
—
—
—
—
PORTE is a bidirectional I/O port.
See MCLR/V
Ground reference for logic and I/O pins.
Positive supply for logic and I/O pins.
No Connect or dedicated ICD/ICSP™ port clock.
No Connect or dedicated ICD/ICSP port clock.
No Connect or dedicated ICD/ICSP port Reset.
No Connect or 28-pin device emulation.
No Connect.
CMOS = CMOS compatible input or output
I
O
PIC18F4321 FAMILY
Digital I/O.
Read control for Parallel Slave Port
(see also WR and CS pins).
Analog input 5.
Digital I/O.
Write control for Parallel Slave Port
(see CS and RD pins).
Analog input 6.
Digital I/O.
Chip Select control for Parallel Slave Port
(see related RD and WR).
Analog input 7.
In-Circuit Debugger clock.
ICSP™ programming clock.
In-Circuit Debugger data.
ICSP programming data.
Master Clear (Reset) input.
Programming voltage input.
Enable 28-pin device emulation when connected
to V
= Input
= Output
SS
.
PP
/RE3 pin.
Description
P = Power
DS39689E-page 21
(3)
(3)
(3)
(3)