MB89940 Ver la hoja de datos (PDF) - Fujitsu
Número de pieza
componentes Descripción
Lista de partido
MB89940 Datasheet PDF : 38 Pages
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MB89940 Series
• External EPROM pins (MB89PV940 only)
Pin no.
49
50
51
52
53
54
55
58
59
60
61
62
63
65
66
67
68
69
70
71
73
75
76
77
78
79
80
64
56
57
72
74
Pin name
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O1
O2
O3
O4
O5
O6
O7
O8
CE
A10
OE
A11
A9
A8
A13
A14
VCC
VSS
N.C.
I/O
Function
O
Address output pins
I
Data input pins
O
ROM chip enable pin
Outputs “H” during standby.
O
Address output pin
O
ROM output enable pin
Outputs “L” at all times.
O
Address output pin
O
EPROM power supply pin
O
Power supply (GND) pin
—
Internally connected pins
Be sure to leave them open.
8
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