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PCF8562 データシートの表示(PDF) - Philips Electronics
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コンポーネント説明
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PCF8562
Universal LCD driver for low multiplex rates
Philips Electronics
PCF8562 Datasheet PDF : 36 Pages
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Philips Semiconductors
Universal LCD driver
for low multiplex rates
Preliminary specification
PCF8562
6.4 LCD drive mode waveforms
6.4.1 S
TATIC DRIVE MODE
The static LCD drive mode is used when a single backplane is provided in the LCD. The backplane (BPn) and segment
drive (S
n
) waveforms for this mode are shown in Fig.5.
ull pagewidth
Tframe
VLCD
LCD segments
BP0
VSS
VLCD
Sn
state 1
(on)
state 2
(off)
VSS
Sn
+
1
VLCD
VSS
(a) Waveforms at driver.
VLCD
state 1 0 V
−
VLCD
VLCD
state 2
0V
V
state1
(t)
=
V
S
(t)
n
–
V
BP0
(t)
V
on(rms)
=
V
LCD
V
state2
(t)
=
V
S
n
+
(t)
1
–
V
BP0
(t)
V
off(rms)
=
0 V
−
VLCD
(b) Resultant waveforms
at LCD segment.
MGL745
Fig.5 Static drive mode waveforms.
November 22, 2004
10
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