PCF85132U/2DA/1,02 NXP Semiconductors, PCF85132U/2DA/1,02 Datasheet - Page 14

• Manufacturer Part Number: PCF85132U/2DA/1,02
• Description: IC LCD DISPLAY DRVR UNCASED
• Manufacturer: NXP Semiconductors

Specifications of PCF85132U/2DA/1,02

• Display Type: LCD
• Configuration: Multiple
• Interface: I²C
• Digits Or Characters: Any Digit Type
• Current - Supply: 60µA
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
PCF85132
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 9.
state 1
state 2
Sn+1
Sn+2
Figure
BP2
V
V
V
V
Waveforms for the 1:3 multiplex drive mode with
BP0
BP1
state1
on(RMS)
state2
off(RMS)
Sn
(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
9.
= 0.638V
= 0.333V
0 V
0 V
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) − V
(t) − V
Rev. 1 — 23 November 2010
/3
/3
LCD
LCD
BP0
BP1
.
.
(t).
(t).
(a) Waveforms at driver.
(b) Resultant waveforms
at LCD segment.
T
fr
LCD driver for low multiplex rates
1
⁄
3
bias
state 1
state 2
013aaa210
LCD segments
PCF85132
© NXP B.V. 2010. All rights reserved.
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