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APPLICATION EXAMPLES
+5V
GND
j~
J,.
Vee
Vss
4
15
POO
5
G
XTALI
POI
P02
6
P03
7
XTAL2
P04
8
P05
9
POe
10
+5V
P07
11
+5V
GND
l~fd...L
1/0
18
IOV
17
PIa
19
RESET
Pll
P12
20
21
DIODE
8021
P13
22
OPTIONAL
8022'
P14
23
P15
-=
P16
24
P17
25
13
INPUT_
T1
P20
26
P21
27
P22
1
P23
2
3
P40
2
P41
3
P42 4
P43
5
P50
1
P51
23
22
8243
P52
21
I/O
P53
EXPANDER
20
1/0
P60
11
P20
P61
19
10
P21
P62
18
9 P22
P63
17
8 P23
13
P70
14
7
PROG
P71
P72
15
6
CS
P73
16
-=
'PIN
NUMBERS ARE DIFFERENT
FOR
8022
ADDING
AN
I/O
EXPANDER
TO
THE 8021,8022
5-12