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Funktion
Funktion
N
1.
| Vcc
+5V
Ground
2
A7
Address Bus A7
Ground
3
\ A8
Address Bus A8
Head Common Odd 6
4 |
AG
Address Bus A6
Head Common Even 3
5
AQ
Address Bus A9
Head Common Even 2
6
AS
Address Bus A5
Head Common Even 6
7
Ai1
Address Bus A11
Head Common Odd 2
| 8
A4
| Address Bus A4
Head Common Odd 3
9
RD
Read Enable
Head Common Odd 5
10
A3
Address Bus A3
Head Common Odd 1
11
A10
Address Bus A10
Head Common Even 4
Address Bus A2
Head Common Even 1
Address Bus A1
Head Common Even 5
Address Data Bus 7
Head Common Odd 4
Address Bus AO
|__Address Data Bus 6
,e) S
Head Pin 15
Head Pin 9
Address Data Bus 0
ie) =
Head Pin 1
Address Data Bus 5
Head Pin 7
Ground
Head Pin 22
+5V
Head Pin 19
Ground
Ground
AD4
24
AD2
AD
ROM1
2
RAM2
Le) a
w
Address Data Bus 1
Address Data Bus 4
Address Data Bus 2
RAMe2 Chip Enable
29
RAM1
30
ROM2
ALE
RAMI Chip Enable
Address Latch Enable
32
WR
Write Enable
33
CLK
System clock
Address Data Bus 3
26
ROM1 Chip Enable
27
RFSH
Not Used
8
Head Pin 11
Head Pin 14
Head Pin 4
Head Pin 12
Head Pin 17
Head Pin24
4
=
glee
ssi
9° S
2 S
° s
e| =
Cc =
c =
O/OlO1O
Cc
Cc =
° =
34
35
EHTRG
Even Head PIN Trigger
In
Head Pin 10
36
OHTRG
Odd Head PIN Trigger
In
Head Pin 2
INTO
| Interrupt Request 0
Out
Head Pin 8
INT2
Interrupt Request 2
Out
Head Pin 18
RESET
RESET
Ground
vcc
+5V
Ground
8-27
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