PCF8562TT-2 NXP [NXP Semiconductors], PCF8562TT-2 Datasheet - Page 14
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PCF8562TT-2
Manufacturer Part Number
PCF8562TT-2
Description
Universal LCD driver for low multiplex rates
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF8562TT-2.pdf
(43 pages)
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NXP Semiconductors
PCF8562
Product data sheet
7.4.3 1:3 Multiplex drive mode
When three backplanes are provided in the LCD, the 1:3 multiplex drive mode applies, as
shown in
Fig 9.
state 1
state 2
Sn+1
Sn+2
Figure
BP2
V
V
V
V
Waveforms for the 1:3 multiplex drive mode with
BP0
BP1
state1
on(RMS)
state2
off(RMS)
Sn
(t) = V
(t) = V
All information provided in this document is subject to legal disclaimers.
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
− V
− 2V
− V
V
2V
V
− V
− 2V
− V
9.
= 0.638V
= 0.333V
0 V
0 V
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
Sn
Sn
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
/3
(t) V
(t) V
/3
/3
LCD
Rev. 6 — 16 June 2011
LCD
BP0
BP1
.
.
(t).
(t).
(a) Waveforms at driver.
(b) Resultant waveforms
at LCD segment.
Universal LCD driver for low multiplex rates
T
fr
1
⁄
3
bias
state 1
state 2
013aaa210
LCD segments
PCF8562
© NXP B.V. 2011. All rights reserved.
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