Pin Configuration
1
2
3
4
5
6
7
8
(T2) P1.0
(T2EX) P1.1
VDD
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
P0.3 (AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
/EA
ALE
/PSEN
40
39
38
37
36
35
34
33
32
31
P1.2
P1.3
P1.4
P1.5
P1.6
6
5 4
3
2
1 44 43424140
39
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
/EA
P1.5
P1.6
P1.7
7
8
9
10
11
12
13
14
15
38
37
36
35
34
33
32
31
30
P1.7
RESET
9
10
RESET
(RXD) P3.0
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(RXD) P3.0
(/INT2) P4.3
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
MPC89x51AP
(PLCC-44)
11
12
13
14
15
16
17
18
19
30
29
ALE
/PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
28
27
26
25
24
23
22
21
P2.7 (A15)
P2.6 (A14)
16
17
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
16
29
(/WR) P3.6
(/RD) P3.7
XTAL2
18 19 2021 22232425262728
XTAL1
VSS
20
44 434241403938 37363534
33
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P1.5
P1.6
P1.7
1
2
3
4
32
31
30
P0.7 (AD7)
RESET
(RXD) P3.0
(/INT2) P4.3
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
5
6
7
8
9
10
11
29
28
27
26
25
24
23
/EA
P4.1
ALE
/PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
MPC89x51AF
(PQFP-44)
(T1) P3.5
12 13 1415 16171819202122
6
MPC89x51A Data Sheet
MEGAWIN
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
