AT89S51 MicroController IC

Pin Configuration:
1 P1.0
2 P1.1
3 P1.2
4 P1.3
5 P1.4
6 P1.5
7 P1.6
8 P1.7
9 RST
10(RXD) P3.0
11(TXD) P3.1
12(INT0) P3.2
13(INT1) P3.3
14(T0) P3.4
15(T1) P3.5
16(WR) P3.6
17(RD) P3.7
18 XTAL2
19 XTAL1
20 GND
21 P2.0(A8)
22 P2.1(A9)
23 P2.2(A10)
24 P2.3(A11)
25 P2.4(A12)
26 P2.5(A13)
27 P2.6(A14)
28 P2.7(A15)
29 PSEN
30 ALE/PROG
31 EA/VPP
32 P0.7(AD7)
33 P0.6(AD6)
34 P0.5(AD5)
35 P0.4(AD4)
36 P0.3(AD3)
37 P0.2(AD2)
38 P0.1(AD1)
39 P0.0(AD0)
40 Vcc