MB90092(1994) Ver la hoja de datos (PDF) - Fujitsu
Número de pieza
componentes Descripción
Lista de partido
MB90092 Datasheet PDF : 49 Pages
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MB90092
Pin name
READ
DA0
DA1
DA2
DA3
DA4
DA5
DA6
DA7
ADR0
ADR1
ADR2
ADR3
ADR4
ADR5
ADR6
ADR7
ADR8
ADR9
ADR10
ADR11
ADR12
ADR13
ADR14
ADR15
ADR16
ADR17
ADR18
ADR19
ADR20
TSC
TEST
EXD
XD
Pin no.
43
44
45
46
47
48
49
50
51
53
54
55
56
57
58
59
60
61
63
64
66
67
68
69
70
71
72
73
74
75
77
78
79
80
I/O
Function
O External font memory read control pin
This pin outputs the Low-level signal in the font memory read period.
The pin enters the high impedance state when the TSC pin inputs a
Low-level signal.
I External font memory data input pins
I These pins are TTL level inputs with an internal pull-up resistor.
I
I
I
I
I
I
O External font memory address output pins
These pins enter the high impedance state when the TSC pin inputs a
Low-level signal.
ADR0
ADR1
ADR2
Raster address
ADR3
ADR4
ADR5
M0, SM0
ADR6
M1, SM1
ADR7
M2, SM2
ADR8
M3, SM3 Character code (Lower bits)
ADR9
M4, SM4
ADR10 M5, SM5
ADR11 M6, SM6
ADR12 Data distinction bits
ADR13
(12,13 = 00: Left, 10: Center, 01: Right)
ADR14 M7, SM7
ADR15 M8, SM8
ADR16 M9, SM9
ADR17 MA, SMA Character code (Higher bits)
ADR18 MB, SMB
ADR19 MC, SMC
ADR20 MD, SMD
I Tristate control input pin for external font memory control bus
When this pin inputs a Low-level signal, the ADR0 to ADR20 pins and
the READ pin enter the high impedance state.
The pin is a hysteresis input with an internal pull-up resistor.
I Test signal input pin
This pin usually inputs a High-level (fixed) signal.
I External circuit pins for display dot clock generator
O Connect these pins to external “L” and “C” to form an LC oscillator
circuit.
(Continued)
7
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