PCF8576CTT/1,118 NXP Semiconductors, PCF8576CTT/1,118 Datasheet - Page 16

• Manufacturer Part Number: PCF8576CTT/1,118
• Description: IC LCD DVR UNIVERSAL 56-HTSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCF8576CTT/1,118

• Package / Case: 56-TSSOP Exposed Pad, 56-eTSSOP, 56-HTSSOP
• 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: Lead free / RoHS Compliant
• Other names: 935284868118; PCF8576CTT/1-T; PCF8576CTT/1-T

NXP Semiconductors
PCF8576C
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 11. Waveforms for the 1:3 multiplex drive mode with
state 1
state 2
S n+1
S n+2
BP2
BP0
BP1
Figure
V
V
V
V
S n
state1
on(RMS)
state2
off(RMS)
(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
0 V
0 V
11.
= 0.638V
= 0.333V
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
/ 3
/ 3
Rev. 10 — 22 July 2010
LCD.
LCD
BP0
BP1
.
(t).
(t).
(a) Waveforms at driver.
(b) Resultant waveforms
at LCD segment.
Universal LCD driver for low multiplex rates
T
fr
1
⁄
3
bias
state 1
state 2
LCD segments
PCF8576C
mgl748
© NXP B.V. 2010. All rights reserved.
16 of 57