PCF8576CTD NXP Semiconductors, PCF8576CTD Datasheet - Page 14
PCF8576CTD
Manufacturer Part Number
PCF8576CTD
Description
LCD Drivers 160 SEGMENT LCD SEGMENT DRIVER
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8576CT1118.pdf
(57 pages)
Specifications of PCF8576CTD
Number Of Digits
20
Number Of Segments
160
Maximum Clock Frequency
315 KHz
Operating Supply Voltage
2 V to 6 V
Maximum Power Dissipation
400 mW
Package / Case
VSO-56
Maximum Supply Current
120 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PCF8576CT/1,112
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NXP Semiconductors
PCF8576C
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
PCF8576C allows the use of
Fig 9.
V
V
V
V
Waveforms for the 1:2 multiplex drive mode with
state1
on(RMS)
state2
off(RMS)
Sn+1
state 1
state 2
(t) = V
(t) = V
BP0
BP1
S n
All information provided in this document is subject to legal disclaimers.
= 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
Rev. 10 — 22 July 2010
LCD
LCD
LCD
LCD
LCD
LCD
BP0
BP1
/ 2
/ 2
/ 2
/ 2
.
/ 2
/ 2
(t).
(t).
1
⁄
2
bias or
1
(a) Waveforms at driver.
(b) Resultant waveforms
⁄
3
bias (see
Universal LCD driver for low multiplex rates
at LCD segment.
T
fr
Figure 9
1
⁄
2
bias
and
state 1
state 2
mgl746
LCD segments
Figure
PCF8576C
© NXP B.V. 2010. All rights reserved.
10).
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