Datasheet

 2010 Microchip Technology Inc. DS39622L-page 3
PIC18F2XXX/4XXX FAMILY
FIGURE 2-2: PIC18F2XXX/4XXX FAMILY PIN DIAGRAMS
44-Pin TQFP
44-Pin QFN
The following devices are included in
40-pin TQFP parts:
• PIC18F4221 • PIC18F4523
• PIC18F4321 • PIC18F4525
• PIC18F4410 • PIC18F4550
• PIC18F4420 • PIC18F4553
• PIC18F4423 • PIC18F4580
• PIC18F4450 • PIC18F4585
• PIC18F4455 • PIC18F4610
• PIC18F4458 • PIC18F4620
• PIC18F4480 • PIC18F4680
• PIC18F4510 • PIC18F4682
• PIC18F4520 • PIC18F4685
• PIC18F4515
The following devices are included in
44-pin QFN parts:
• PIC18F4221 • PIC18F4523
• PIC18F4321 • PIC18F4525
• PIC18F4410 • PIC18F4550
• PIC18F4420 • PIC18F4553
• PIC18F4423 • PIC18F4580
• PIC18F4450 • PIC18F4585
• PIC18F4455 • PIC18F4610
• PIC18F4458 • PIC18F4620
• PIC18F4480 • PIC18F4680
• PIC18F4510 • PIC18F4682
• PIC18F4520 • PIC18F4685
• PIC18F4515
10
11
2
3
6
1
18 19 20 21 22 12 13 14 15
38
8
7
44 43 42 41 40 39
16 17
29
30
31
32
33
23
24
25
26
27
28
36 34 35
9
PIC18F4XXX
37
RA3 RA2
RA1 RA0
MCLR
/VPP/RE3
RB7/PGD RB6/PGC
RB5/PGM
NC
RC6 D+/VP D-/VM RD3 RD2 RD1 RD0 V
USB
RC2 RC1 RC0
OSC2
OSC1
V
SS
AVDD
RA5
RA4
RC7
RD4
RD5
RD6
V
SS
VDD
RB0
RB1
RB2
RB3
RD7
5
4
AVSS
VDD
AVDD
RB4
RE0
RE1
RE2
10
11
2
3
6
1
18 19 20 21 22
12 13 14
15
38
8
7
44 43
42
41 40 39
16 17
29
30
31
32
33
23
24
25
26
27
28
36 34 35
9
PIC18F4XXX
37
RA3 RA2 RA1 RA0
MCLR
/VPP/RE3
NC
(1)
/ICPGC
RB7/PGD RB6/PGC
RB5/PGM
RB4
NC
(1)
/ICPGD
RC6 RC5 RC4 RD3 RD2 RD1 RD0 RC3 RC2 RC1 NC
(1)
/ICPORTS
NC
(1)
/ICVPP
RC0
OSC2
OSC1
V
SS
VDD
RE2
RE1
RE0
RA5
RA4
RC7
RD4
RD5
RD6
V
SS
VDD
RB0
RB1
RB2
RB3
RD7
5
4
Note 1: These pins are NC (No Connect) for all devices
listed above with the exception of the PIC18F4450,
PIC18F4455, PIC18F4458 and the PIC18F4553
devices (see Section 2.8 “Dedicated ICSP/ICD
Port (44-Pin TQFP Only)” for more information on
programming these pins in these devices).