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PC— 1425
$C43536 Desplay LSI description
GND Voc DIS HA
|
® Timing
Dispisy out
:
Diepley on
Power off
(CPU standby |
ns
S qian el reNRIGR
SH26 : TRS
i
: during power off
PAL
ESR.H: TR2
a eee
eas
({Latch clock)
}
:
|
"
ot:
'
>
'
s
'<—
:
GND
'i
QO}\:
"VAH —
;
-— ov
.
=
;
Vp 5/5
.
Si}
Van —>
i
= -14V
_
i
EI's
% Vois Ypts/5
|
(Display control RAM)
al
|
Eee
eaeeae
S11
O s
|
S |
Se
ice
ve
01~8Q)
)
M
O S 61
ae
OTS
"% Vos
ay
Ts
O Si
Va —
= -5.6V
ree
Sane)
ee i
vars
a
Vos
z
-Va_—.
a
~TOV
HA
DIS
| —<$<<§3oo
oo
RES
ee
ee
Hl
H2
H8
H4
H5
H6
H7
H8
Hg H10 H11 H12 H13 H14: H1
H2
H3
H4
H5
i
ts ee
ee ee
ee
!
Segment output waveform
GND=VaAH —
! seeee
VBH —~>
Segment waveform
VAL —~
VML —>
Ee
APL)
(CEPT me ee
Tee ete
ree Se eee
|
Vp1S=VBL -—»>
All digits off
ON ON ON ON OFFOFFOFF
OFF OFF OFFON ON ON ON ON ON ON ON OFF
_—————
i
ttt
er
ttt
All digits off (DIS = Uf Vat
VBH
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