PCF8576DT/S400/2,1 NXP Semiconductors, PCF8576DT/S400/2,1 Datasheet - Page 15

• Manufacturer Part Number: PCF8576DT/S400/2,1
• Description: LCD Drivers 2.64KHz 50mA 400mW
• Manufacturer: NXP Semiconductors

Specifications of PCF8576DT/S400/2,1

• Rohs: yes
• Maximum Clock Frequency: 2.64 kHz
• Operating Supply Voltage: 1.8 V to 5.5 V
• Package / Case: TSSOP-56
• Maximum Power Dissipation: 400 mW
• Maximum Supply Current: 50 mA
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 2000

NXP Semiconductors
PCF8576D
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
(see
Fig 10. Waveforms for the 1:3 multiplex drive mode with
Figure
(1) V
(2) V
(3) V
(4) V
state 1
state 2
S n+1
S n+2
BP2
BP0
BP1
S n
state1
on(RMS)
state2
off(RMS)
10).
(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
= 0.333V
= 0.638V
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+1
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
(t) − V
/ 3
/ 3
(t) − V
Rev. 13 — 10 May 2012
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
PCF8576D
mgl748
© NXP B.V. 2012. All rights reserved.
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