MC81F4332 Datasheet, PDF (16/198 Pages) Finechips – ABOV SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS

MC81F4x32
3.5 Summary
Pin number
I/O
Alternative functions
44pin 42pin 32pin 28pin
R00 EXT10/SXin
33
36
29
25
R01 EXT11/SXout
34
37
30
26
R02 AN0/EXT0/EC0/
35
38
31
27
R03 AN1/EXT1/T0O/PWM0O
36
39
32
28
R04 AN2/EXT2/EC1/SCK
42
3
1
1
R05 AN3/EXT3/SI/T1O/PWM1O 43
4
2
2
R06 AN4/EXT4/EC2/SO
44
5
3
3
R07 AN5/EXT5/T2O
1
6
4
4
R10 Vref/EXT6
3
8
6
6
R11 AN6/EXT7/PWM2O
4
9
7
7
R12 AN7/EXT8/PWM3O/BUZO
8
13
8
8
R13 AN8/EXT9/PWM4O
9
14
9
9
R14 RxD
10
15
10
10
R15 TxD
11
16
11
11
R16 SDA
12
17
12
12
R17 SCL
13
18
13
13
R20 AN9
14
19
14
14
R21
-
15
20
15
x
R22
-
16
21
16
x
R23
-
17
22
17
x
R24
-
18
23
18
x
R25 AN10
19
24
19
15
R26 AN11
20
25
20
16
R27 AN12
21
26
21
17
R30 AN13
22
27
22
18
R31 AN14
23
28
23
19
R32
-
24
29
24
20
R33 Xout
29
32
25
21
R34 Xin
30
33
26
22
R35 RESETB
31
34
27
23
Pin status
at RESET
input
input
input
input
input
input
input
input
input
input
input
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
input
input
16
October 19, 2009 Ver.1.35