Pin Configuration:
1P1.0 (T2)
2P1.1 (T2.EX)
3P1.2
4P1.3
5P1.4
6P1.5 (MOSI)
7P1.6 (MISO)
8P1.7 (SCK)
9RST
10P3.0 (RXD)
11P3.1 (TXD)
12P3.2 (INT0)
13P3.3 (INT1)
14P3.4 (T0)
15P3.5 (T1)
16P3.6 (WR)
17P3.7 (RD)
18XTAL2
19XTAL1
20GND
21P2.0(A8)
22P2.1 (A9)
23P2.2 (A10)
24P2.3 (A11)
25P2.4 (A12)
26P2.5 (A13)
27P2.6 (A14)
28P2.7 (A15)
29PSEN
30ALE / PROG
31EA / VPP
32P0.7 (AD7)
33P0.6 (AD6)
34P0.5 (AD5)
35P0.4 (AD4)
36P0.3 (AD3)
37P0.2 (AD2)
38P0.1 (AD1)
39P0.0 (AD0)
40VCC
BS170 Logic Level N-Channel Mosfet
100 Ohm 1/4 Watt Resistor
LM741 Operational Amplifier IC
CD4518 Dual 4 Bit BCD Counter IC






