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Teilenummer | PCF8533U |
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Beschreibung | Universal LCD driver for low multiplex rates | |
Hersteller | NXP Semiconductors | |
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Gesamt 30 Seiten INTEGRATED CIRCUITS
DATA SHEET
PCF8533
Universal LCD driver for low
multiplex rates
Product specification
Supersedes data of 1999 Mar 12
File under Integrated Circuits, IC12
1999 Jul 30
Philips Semiconductors
Universal LCD driver for low multiplex rates
Product specification
PCF8533
handbook, full pagewidthVDD
R
tr
2CB
HOST
MICRO-
PROCESSOR/
MICRO-
CONTROLLER
VSS
SDAACK
SDA
SCL
OSC
VDD VLCD
PCF8533
80 segment drives
4 backplanes
LCD PANEL
(up to 320
elements)
A0 A1 A2 SA0 VSS
MGL744
Fig.2 Typical system configuration.
1999 Jul 30
6
6 Page Philips Semiconductors
Universal LCD driver for low multiplex rates
Product specification
PCF8533
handbook, full pagewidth
BP0
BP1
BP2
BP3
Sn
Sn + 1
Sn + 2
Sn + 3
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
state 1
state 2
VLCD
2VLCD/3
VLCD/3
0V
−VLCD/3
−2VLCD/3
−VLCD
VLCD
2VLCD/3
VLCD/3
0V
−VLCD/3
−2VLCD/3
−VLCD
Vstate1(t) = Vsn(t) − VBP0(t): Von(rms) = 0.577VLCD.
Vstate2(t) = Vsn(t) − VBP1(t): Voff(rms) = 0.333VLCD.
Tframe
(a) Waveforms at driver.
(b) Resultant waveforms
at LCD segment.
LCD segments
state 1
state 2
MGL749
Fig.7 Waveforms for the 1 : 4 multiplex drive mode.
1999 Jul 30
12
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ PCF8533U Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
PCF8533 | Universal LCD driver for low multiplex rates | NXP Semiconductors |
PCF8533U | Universal LCD driver for low multiplex rates | NXP Semiconductors |
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