PCF8566T NXP Semiconductors, PCF8566T Datasheet - Page 13
PCF8566T
Manufacturer Part Number
PCF8566T
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8566T.pdf
(48 pages)
Specifications of PCF8566T
Operating Supply Voltage (typ)
3.3/5V
Number Of Digits
12
Number Of Segments
96
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Package Type
VSO
Pin Count
40
Mounting
Surface Mount
Power Dissipation
400mW
Frequency (max)
315KHz
Operating Supply Voltage (min)
2.5V
Operating Supply Voltage (max)
6V
Lead Free Status / Rohs Status
Not Compliant
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Manufacturer
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NXP Semiconductors
PCF8566_7
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 8.
state 1
state 2
S n+1
S n+2
BP2
Figure
BP0
BP1
V
V
V
V
Waveforms for the 1:3 multiplex drive mode with
S n
state1
on(RMS)
state2
off(RMS)
(t) = V
(t) = 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
V
2V
V
V
2V
V
0 V
0 V
8.
V
2V
V
V
2V
V
= 0.638V
= 0.333V
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)
(t)
Rev. 07 — 25 February 2009
/ 3
/ 3
LCD
LCD.
V
V
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
mgl748
PCF8566
© NXP B.V. 2009. All rights reserved.
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