Entex Space Invader

Chip labeled 
/B138
COPL444-
HRZ/N
INV II

back
L-444L(A)
HRZ

die labeled
HRZ
COP 444L/A

3 buttons: Left/Right/Fire
1 switch: Pro/Am
Piezo buzzer

LEDs:
44 LEDs - 7 rows by 6 columns plus 2 extra above lowest row
3-digit 7-segment LED

COP444 pinout

1  GND    9v Batt negative
2  CKO    N/C
3  CKI    101 cap to ground, 47K resistor to +9V
4  /Reset cap to ground, diode and resistor to +9V
5  L7     LED grid - with R0, left explosion
6  L6     7-segment LED segment G
7  L5     7-segment LED segment A, grid column 1
8  L4     7-segment LED segment B, grid column 2
9  IN1    Left Button (ground to move)
10 IN2    Right Button (ground to move)
11 Vcc    9v battery positive
12 L3     7-segment LED segment C, grid column 3
13 L2     7-segment LED segment D, grid column 4
14 L1     7-segment LED segment E, grid column 5
15 L0     7-segment LED segment F, grid column 6
16 SI     N/C
17 SO     LED grid row 0 (top)
18 SK     LED grid row 1 and piezo
19 IN0    Pro/Am switch (ground=Pro)
20 IN3    Fire Button (ground to fire)
21 G0     LED grid row 2
22 G1     LED grid row 3
23 G2     LED grid row 4
24 G3     LED grid row 5
25 D3     LED grid row 6
26 D2     7-segment LED digit 3
27 D1     7-segment LED digit 2
28 D0     7-segment LED digit 1


7-segment LEDs
8 8 8

            L5  L4  L3  L2  L1  L0  L6
D0  digit 1 A   B   C   D   E   F   G
D1  digit 2 A   B   C   D   E   F   G
D2  digit 3 A   B   C   D   E   F   G


LED matrix
7 rows by 6 columns, with extra LEDs above bottom row

        L5  L4  L3  L2  L1  L0  
SO      .   .   .   .   .   .
SK      .   .   .   .   .   .
G0      .   .   .   .   .   .
G1      .   .   .   .   .   .
G2      .   .   .   .   .   .
G3      .   .   .   .   .   .
            .           .     
D3      .   .   .   .   .   .

Extra LED on right is SO+L6, left is SO+L7