PIC18F4321 Datasheet, PDF (4/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F4321 FAMILY
Pin Diagrams
28-Pin SPDIP, SOIC, SSOP
MCLR/VPP/RE3
1
RA0/AN0
2
RA1/AN1
3
RA2/AN2/VREF-/CVREF
4
RA3/AN3/VREF+
5
RA4/T0CKI/C1OUT
6
RA5/AN4/SS/HLVDIN/C2OUT
7
VSS
8
OSC1/CLKI/RA7
9
OSC2/CLKO/RA6
10
RC0/T1OSO/T13CKI
11
RC1/T1OSI/CCP2⁽¹⁾
12
RC2/CCP1
13
RC3/SCK/SCL
14
Note 1: RB3 is the alternate pin for CCP2 multiplexing.
28
RB7/KBI3/PGD
27
RB6//KBI2/PGC
26
RB5/KBI1/PGM
25
RB4/KBI0/AN11
24
RB3/AN9/CCP2⁽¹⁾
23
RB2/INT2/AN8
22
RB1/INT1/AN10
21
RB0/INT0/FLT0/AN12
20
VDD
19
VSS
18
RC7/RX/DT
17
RC6/TX/CK
16
RC5/SDO
15
RC4/SDI/SDA
28-Pin QFN
RA2/AN2/VREF-/CVREF
RA3/AN3/VREF+
RA4/T0CKI/C1OUT
RA5/AN4/SS/HLVDIN/C2OUT
VSS
OSC1/CLKI/RA7
OSC2/CLKO/RA6
28 27 26 25 24 23 22
1
21
2
20
3 _PIC18F2221 19
4 _PIC18F2321 18
5
17
6
16
7
15
8 9 10 11 12 13 14
RB3/AN9/CCP2⁽¹⁾
RB2/INT2/AN8
RB1/INT1/AN10
RB0/INT0/FLT0/AN12
VDD
VSS
RC7/RX/DT
Note 1: RB3 is the alternate pin for CCP2 multiplexing.
DS39689E-page 2
Preliminary
© 2007 Microchip Technology Inc.