Castle Toy Co Einstein

Chip labeled 

~/927
COP421
-NEZ/N


4 buttons
1 speaker
4 lamps

COP421 pinout

1  GND    6v negative
2  CKO    N/C
3  CKI    100pf cap to ground, 12K resistor to +6V
4  /Reset N/C
5  L7     skill switch 4 and blue button
6  L6     skill switch 3 and green button
7  L5     skill switch 2 and best button and yellow button
8  L4     skill switch 1 and start button and red button
9  Vcc    battery + via power switch
10 L3     blue lamp
11 L2     green lamp
12 L1     yellow lamp
13 L0     red lamp
14 SI     N/C
15 SO     N/C
16 SK     speaker
17 G0     skill switch common
18 G1     start button and last button common
19 G2     red, green, blue, yellow buttons common
20 G3     N/C
21 D3     N/C
22 D2     N/C
23 D1     N/C
24 D0     N/C