83C51KB Datasheet, PDF (7/19 Pages) Intel Corporation – HIGH PERFORMANCE KEYBOARD MICROCONTROLLER

83C51KB HIGH PERFORMANCE KEYBOARD MICROCONTROLLER
Table 5. 40-pin DIP Signals Arranged by Pin Number
Pin Name
Pin Name
1 P 1.0/KSI0
21 P2.0/KSO8/A8
2 P1.1/KSI1
22 P2.1/KSO9/A9
3 P1.2/KSI2
23 P2.2KSO10/A10
4 P1.3/KSI3
24 P2.3/KSO11/A11
5 P1.4/KSI4
25 P2.4/KSO12/A12
6 P1.5/KSI5
26 P2.5/KSO13/A13
7 P1.6/KSI6
27 P2.6/KSO14/A14
8 P1.7/KSI7
28 P2.7/KSO15/A15
9 RST
29 PSEN#
10 P3.0/DATA
30 ALE
11 P3.1
31 EA#
12 P3.2/CLK0/INT0#
32 P0.7/KSO7/AD7
13 P3.3/CLK1/INT1#
33 P0.6/KSO6/AD6
14 P3.4/LED0/T0
34 P0.5/KSO5/AD5
15 P3.5/LED1
35 P0.4/KSO4/AD4
16 P3.6/LED2/WR#
36 P0.3/KSO3/AD3
17 P3.7/LED3/RD#
37 P0.2/KSO2/AD2
18 NC
38 P0.1/KSO1/AD1
19 RCIN
39 P0.0/KSO0/AD0
20
V_SS
40
V_CC
7