MB89160/160A Series
• External EPROM pins (MB89PV160 only)
Pin no.
Pin name
I/O
O
Function
82
VPP
“H” level output pin
Address output pins
83
84
85
86
87
88
89
90
91
A12
A7
A6
A5
A4
A3
A2
A1
A0
O
93
94
95
O1
O2
O3
I
Data input pins
96
VSS
O
I
Power supply (GND) pin
Data input pins
98
99
100
101
102
O4
O5
O6
O7
O8
103
CE
O
ROM chip enable pin
Outputs “H” during standby.
104
105
A10
OE
O
O
Address output pin
ROM output enable pin
Outputs “L” at all times.
107
108
109
A11
A9
A8
O
Address output pins
110
111
112
A13
A14
VCC
O
O
O
EPROM power supply pin
81
92
97
N.C.
—
Internally connected pins
Be sure to leave them open.
106
12
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