Pin Configuration
(AD3) P0.3
(AD2) P0.2
(AD1) P0.1
(AD0) P0.0
VDD
(INT3) P4.2
(T2) P1.0
(T2EX) P1.1
P1.2
P1.3
P1.4
(T2) P1.0
(T2EX) P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RESET
(RXD) P3.0
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
16
(/WR) P3.6
(/RD) P3.7
XTAL2
XTAL1
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
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
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
P1.5
P1.6
P1.7
RESET
(RXD) P3.0
(/INT2) P4.3
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
6 5 4 3 2 1 44 43 42 41 40
39
7
38
8
37
9
36
10
35
11
34
12
33
13
32
14
15
31
30
16
29
17
18 19 20 21 2223 24 25 26 2728
MPC89x51AP
(PLCC-44)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
/EA
ALE
/PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
MPC89x51AE
(PDIP-40)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
P4.0
VSS
XTAL1
XTAL2
P3.7 (/RD)
P3.6 (/WR)
P1.5
P1.6
P1.7
RESET
(RXD) P3.0
(/INT2) P4.3
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
44 43 42 41 40 39 38 37 36 35 34
33
1
32
2
31
3
4
30
5
29
28
6
27
7
26
8
25
9
24
10
23
11
12 13 14 15 1617 18 19 20 2122
(AD3) P0.3
(AD2) P0.2
(AD1) P0.1
(AD0) P0.0
VDD
(INT3) P4.2
(T2) P1.0
(T2EX) P1.1
P1.2
P1.3
P1.4
MPC89x51AF
(PQFP-44)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
/EA
P4.1
ALE
/PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
P4.0
VSS
XTAL1
XTAL2
P3.7 (/RD)
P3.6 (/WR)
6
MPC89x51A Data Sheet
MEGAWIN
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
