PCF8534AHL/1,518 NXP Semiconductors, PCF8534AHL/1,518 Datasheet - Page 12

• Manufacturer Part Number: PCF8534AHL/1,518
• Description: IC LCD DISPLAY DRVR 60SEG 80LQFP
• Manufacturer: NXP Semiconductors

Specifications of PCF8534AHL/1,518

• Package / Case: 80-LQFP
• Display Type: LCD
• Configuration: 60 Segment
• Interface: I²C
• Current - Supply: 8µA
• 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: 240
• Maximum Clock Frequency: 400 KHz
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Maximum Supply Current: 50 mA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-5058-2; 935289852518

NXP Semiconductors
PCF8534A_5
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
PCF8534A allows the use of
Figure
Fig 7.
8.
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
= 0.791V
= 0.354V
Sn
Sn
(t)
(t)
V
V
V
V
V
V
V
V
V
V
V
V
V
V
0 V
0 V
V
V
V
V
Rev. 05 — 6 August 2009
LCD
LCD
SS
LCD
LCD
SS
LCD
SS
LCD
SS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
V
V
/ 2
/ 2
/ 2
/ 2
BP0
BP1
.
.
/ 2
/ 2
(t).
(t).
1
2
bias or
1
(a) Waveforms at driver.
(b) Resultant waveforms
3
bias in this mode as shown in
Universal LCD driver for low multiplex rates
at LCD segment.
T
fr
1
2
bias
state 1
state 2
mgl746
LCD segments
PCF8534A
© NXP B.V. 2009. All rights reserved.
Figure 7
and
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