PCF8576DT/S400/2,1 NXP Semiconductors, PCF8576DT/S400/2,1 Datasheet - Page 15
PCF8576DT/S400/2,1
Manufacturer Part Number
PCF8576DT/S400/2,1
Description
LCD Drivers 2.64KHz 50mA 400mW
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8576DTS40021.pdf
(56 pages)
Specifications of PCF8576DT/S400/2,1
Rohs
yes
Maximum Clock Frequency
2.64 kHz
Operating Supply Voltage
1.8 V to 5.5 V
Package / Case
TSSOP-56
Maximum Power Dissipation
400 mW
Maximum Supply Current
50 mA
Mounting Style
SMD/SMT
Factory Pack Quantity
2000
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NXP Semiconductors
PCF8576D
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
(see
Fig 10. Waveforms for the 1:3 multiplex drive mode with
Figure
(1) V
(2) V
(3) V
(4) V
state 1
state 2
S n+1
S n+2
BP2
BP0
BP1
S n
state1
on(RMS)
state2
off(RMS)
10).
(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
0 V
0 V
= 0.333V
= 0.638V
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+1
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
(t) − V
/ 3
/ 3
(t) − V
Rev. 13 — 10 May 2012
LCD
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
LCD segments
PCF8576D
mgl748
© NXP B.V. 2012. All rights reserved.
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