PCA8534AH/Q900/1,5 NXP Semiconductors, PCA8534AH/Q900/1,5 Datasheet - Page 10

• Manufacturer Part Number: PCA8534AH/Q900/1,5
• Description: IC LCD DRIVER 60SEG 80LQFP
• Manufacturer: NXP Semiconductors

Specifications of PCA8534AH/Q900/1,5

• Package / Case: 80-LQFP
• Display Type: LCD
• Configuration: 60 Segment
• Interface: I²C
• Current - Supply: 80µA
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Digits: 30
• Number Of Segments: 60
• Maximum Clock Frequency: 3046 Hz
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 95 C
• Attached Touch Screen: No
• Maximum Supply Current: 20 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-5110-2

NXP Semiconductors
PCA8534A_2
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
PCA8534A allows the use of
Figure
Fig 5.
6.
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
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= 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
LCD
LCD
LCD
LCD
Rev. 02 — 1 June 2010
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
Universal LCD driver for low multiplex rates
bias in this mode as shown in
at LCD segment.
T
fr
1
⁄
2
bias
state 1
state 2
mgl746
LCD segments
PCA8534A
© NXP B.V. 2010. All rights reserved.
Figure 5
and
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