MC81F4x16
3.7 Summary
Pin number
Pin status
at RESET
I/O
Alternative functions
44pin 42pin 32pin 28pin 24pin 20pin
R00 EXT10/SXin
33
34
35
36
42
36
37
38
39
3
29
30
31
32
1
25
26
27
28
1
21
22
23
24
1
17
18
19
20
1
input
input
R01 EXT11/SXout
R02 AN0/EXT0/EC0/
R03 AN1/EXT1/T0O/PWM0O
R04 AN2/EXT2/EC1/SCK
input
input
input
R05 AN3/EXT3/SI/T1O/PWM1O 43
4
2
2
2
2
input
R06 AN4/EXT4/EC2/SO
R07 AN5/EXT5/T2O
R10 Vref/EXT6
44
1
5
3
3
3
3
input
6
4
4
4
4
input
3
8
6
6
6
6
input
R11 AN6/EXT7/PWM2O
R12 AN7/EXT8/PWM3O/BUZO
R13 AN8/EXT9/PWM4O
R14 RxD
4
9
7
7
7
7
input
8
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
32
33
34
8
8
8
x
input
9
9
9
x
x
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
Open-drain output
input
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
29
30
31
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
10
11
12
13
14
x
9
8
R15 TxD
10
11
12
x
9
R16 SDA
x
R17 SCL
x
R20 AN9
x
R21
-
-
-
-
x
x
R22
x
x
x
R23
x
x
x
R24
x
x
x
R25 AN10
R26 AN11
R27 AN12
R30 AN13
R31 AN14
R32
15
16
17
18
19
20
21
22
23
13
14
15
16
x
10
11
12
x
x
-
x
x
R33 Xout
R34 Xin
R35 RESETB
17
18
19
13
14
15
input
input
18
October 19, 2009 Ver.1.35
FINECHIPS [ FINECHIPS ]
