pcf8576u/5 NXP Semiconductors, pcf8576u/5 Datasheet - Page 12
pcf8576u/5
Manufacturer Part Number
pcf8576u/5
Description
Universal Lcd Driver For Low Multiplex Rates
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8576U5.pdf
(44 pages)
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Philips Semiconductors
2001 Oct 02
Universal LCD driver for low multiplex rates
V
V
V
V
state1
on(rms)
state2
off(rms)
t ( )
t ( )
=
=
=
=
0.638V
0.333V
V
V
S
S
n
n
t ( ) V
t ( ) V
–
–
op
op
BP0
BP1
BP2/S23
S n 1
S n 2
state 1
state 2
t ( )
t ( )
BP0
BP1
S n
Fig.7 Waveforms for the 1 : 3 multiplex drive mode (V
V DD
V
V
V LCD
V DD
V
V
V LCD
V DD
V
V
V LCD
V DD
V
V
V LCD
V DD
V
V
V LCD
V DD
V
V
V LCD
V op
V
V
V op
V op
V
V
V op
2V
2V
2V
2V
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
op
op
op
op
op
op
op
op
/3
/3
/3
/3
0
0
/3
/3
/3
/3
V
V
V
V
V
V
2V
2V
2V
2V
2V
2V
op
op
op
op
op
op
op
op
op
op
op
op
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
(a) waveforms at driver
(b) resultant waveforms
at LCD segment
T frame
12
op
= V
state 1
state 2
LCD segments
DD
MBE542
V
LCD
).
Product specification
PCF8576
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