PCF8576DT NXP Semiconductors, PCF8576DT Datasheet - Page 11

• Manufacturer Part Number: PCF8576DT
• Manufacturer: NXP Semiconductors

Specifications of PCF8576DT

• Operating Supply Voltage (typ): 2.5/3.3/5V
• Number Of Digits: 20
• Number Of Segments: 160
• Package Type: TSSOP
• Pin Count: 56
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Frequency (max): 400KHz
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Supplier Unconfirmed

NXP Semiconductors
PCF8576D_9
Product data sheet
7.4.1 Static drive mode
7.4 LCD drive mode waveforms
The static LCD drive mode is used when a single backplane is provided in the LCD. The
backplane (BPn) and segment drive (S
Fig 6.
(1) V
(2) V
(3) V
(4) V
Static drive mode waveforms
state1
on(RMS)
state2
off(RMS)
(t) = V
(t) = V
= 0 V.
= V
Sn
Sn+1
LCD
(t)
.
Rev. 09 — 25 August 2009
(t)
Sn+1
state 1
state 2
BP0
V
Sn
BP0
V
BP0
(t).
V
V
V
V
V
V
V
(t).
V
V
V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
SS
SS
SS
0 V
0 V
(b) Resultant waveforms
(a) Waveforms at driver.
at LCD segment.
n
) waveforms for this mode are shown in
Universal LCD driver for low multiplex rates
T
fr
state 1
(on)
LCD segments
mgl745
state 2
(off)
PCF8576D
© NXP B.V. 2009. All rights reserved.
Figure
11 of 52
6.