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REV.-A
Pin No.
Signal Name
In/Out
Function
57
N/C
-
Not used.
58
LWE
Out
Local read/write signal: Read/write signals
for V-RAM.
Low level gives write signal.
59
YSPU
Out
Y speed up signal: LP signal with timing
shifted by a half cycle. Output at an
interval of approx. 280 /l,Sec. Has an
on-time of approx. 10f1,.
60
YDOO
Out
Y data: Y line data for LCD display
61
YSCL
Out
Y shift clock: Shifts Y data to falling edge of
clock to be shifted. Output at an inter-
val of approx. 280 f1,sec.
62
YDIS
Out
Y display: Displayed on LCD when HIGH.
63
FR
Out
Frame signal: Connected to XY driver.
64
LP
Out
Latch pulse signal: Connected to XY driver.
Latches data at falling edge. Output at
an
interval
of
approx.
280
f1,sec.
65
XSCL
Out
X
shift
clock:
Shifts
X
data
66
XDO
Out
X data 0:
X line data for LCD display.
67
XD 1
Out
X data 1 : X line data for LCD display.
68
XD2
Out
X data 2:
X line data for LCD display.
69
XD3
Out
X data 3:
X line data for LCD display.
70
XECL
Out
X enable clock. Output 8 pulses at an inter-
val of approx. 280 f1,sec.
71
VC
-
Circuit voltage (+5V)
72
N/C
-
Not used.
73
LOSC
In
Local clock (4.8 MHz)
74
N/C
-
Not used.
75
G
-
Circuit ground
7-55
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