PCF8576CH/1,118 NXP Semiconductors, PCF8576CH/1,118 Datasheet - Page 14

• Manufacturer Part Number: PCF8576CH/1,118
• Description: IC LCD DRIVER 64-LQFP
• Manufacturer: NXP Semiconductors

Specifications of PCF8576CH/1,118

• Package / Case: 64-LQFP
• Display Type: LCD
• Configuration: 40 Segment
• Interface: I²C
• Current - Supply: 120µA
• Voltage - Supply: 2 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Digits: 20
• Number Of Segments: 160
• Maximum Clock Frequency: 315 KHz
• Operating Supply Voltage: 2 V to 6 V
• Maximum Power Dissipation: 400 mW
• Maximum Supply Current: 120 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-4518-2; 935276196118; PCF8576CH/1-T; PCF8576CH/1-T

NXP Semiconductors
PCF8576C
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
PCF8576C allows the use of
Fig 9.
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
All information provided in this document is subject to legal disclaimers.
= 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
Rev. 10 — 22 July 2010
LCD
LCD
LCD
LCD
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
bias (see
Universal LCD driver for low multiplex rates
at LCD segment.
T
fr
Figure 9
1
⁄
2
bias
and
state 1
state 2
mgl746
LCD segments
Figure
PCF8576C
© NXP B.V. 2010. All rights reserved.
10).
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