PCF8562TT-2 NXP [NXP Semiconductors], PCF8562TT-2 Datasheet - Page 12
PCF8562TT-2
Manufacturer Part Number
PCF8562TT-2
Description
Universal LCD driver for low multiplex rates
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF8562TT-2.pdf
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NXP Semiconductors
PCF8562
Product data sheet
7.4.2 1:2 Multiplex drive mode
When two backplanes are provided in the LCD, the 1:2 multiplex mode applies. The
PCF8562 allows the use of
Figure
Fig 7.
8.
V
V
V
V
Waveforms for the 1:2 multiplex drive mode with
state1
on(RMS)
state2
off(RMS)
state 1
state 2
Sn+1
(t) = V
(t) = V
BP0
BP1
All information provided in this document is subject to legal disclaimers.
Sn
= 0.791V
= 0.354V
Sn
Sn
(t) V
(t) V
V
V
V
V
V
V
V
V
V
V
V
V
− V
− V
V
V
− V
− V
0 V
0 V
LCD
LCD
SS
LCD
LCD
SS
LCD
SS
LCD
SS
LCD
LCD
LCD
LCD
LCD
Rev. 6 — 16 June 2011
LCD
LCD
LCD
LCD
LCD
BP0
BP1
/2
/2
/2
/2
.
.
/2
/2
1
(t).
(t).
⁄
2
bias or
1
⁄
3
(a) Waveforms at driver.
(b) Resultant waveforms
bias in this mode as shown in
Universal LCD driver for low multiplex rates
at LCD segment.
T
fr
1
⁄
2
bias
013aaa208
state 1
state 2
LCD segments
PCF8562
© NXP B.V. 2011. All rights reserved.
Figure 7
and
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