PCF8576T,118 NXP Semiconductors, PCF8576T,118 Datasheet - Page 12

• Manufacturer Part Number: PCF8576T,118
• Description: IC LCD DVR UNVRSL LOW-MUX 56VSO
• Manufacturer: NXP Semiconductors

Specifications of PCF8576T,118

• Display Type: LCD
• Configuration: 40 Segment
• Interface: I²C
• Current - Supply: 180µA
• Voltage - Supply: 2 V ~ 9 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 56-VSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Other names: 933740730118; PCF8576TD-T; PCF8576TD-T

NXP Semiconductors
PCF8576D
Product data sheet
7.4.2 1:2 Multiplex drive mode
The 1:2 multiplex drive mode is used when two backplanes are provided in the LCD. This
mode allows fractional LCD bias voltages of
Figure
Fig 7.
(1) V
(2) V
(3) V
(4) V
8.
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.
= 0.354V
= 0.791V
Sn
Sn+1
(t) − V
Rev. 10 — 14 February 2011
V
V
V
V
V
V
V
V
V
V
V
V
−V
−V
V
V
−V
−V
0 V
0 V
(t) − V
LCD
LCD
SS
LCD
LCD
SS
LCD
SS
LCD
SS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
BP0
/ 2
/ 2
/ 2
/ 2
.
.
/ 2
/ 2
BP1
(t).
(t).
(a) Waveforms at driver.
(b) Resultant waveforms
Universal LCD driver for low multiplex rates
at LCD segment.
1
⁄
2
bias or
T
fr
1
⁄
3
1
bias as shown in
⁄
2
bias
state 1
state 2
mgl746
LCD segments
PCF8576D
© NXP B.V. 2011. All rights reserved.
Figure 7
12 of 50
and