KX-TDA0155CE - Panasonic PBX Service Manual Supplement (repair manual). Page 49

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49
KX-TDA0155CE
52 ADR3
I
-
A[3]
Address Bus
53 ADR2
I
-
A[2]
Address Bus
54 ADR1
I
-
A[1]
Address Bus
55 ADR0
I
-
A[0]
Address Bus
56 VDD
-
-
3.2V supply
-
57 DB7
I/O
-
D[7]
Data Bus
58 DB6
I/O
-
D[6]
Data Bus
59 DB5
I/O
-
D[5]
Data Bus
60 DB4
I/O
-
D[4]
Data Bus
61 DB3
I/O
-
D[3]
Data Bus
62 DB2
I/O
-
D[2]
Data Bus
63 DB1
I/O
-
D[1]
Data Bus
64 DB0
I/O
-
D[0]
Data Bus
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