PCF8576CT/1,112 NXP Semiconductors, PCF8576CT/1,112 Datasheet - Page 9
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PCF8576CT/1,112
Manufacturer Part Number
PCF8576CT/1,112
Description
IC LCD DVR UNVRSL LOW-MUX 56VSOP
Manufacturer
NXP Semiconductors
Specifications of PCF8576CT/1,112
Package / Case
56-VSOP
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 Operating Temperature
+ 85 C
Attached Touch Screen
No
Maximum Supply Current
120 uA
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Digits Or Characters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
935278818112
PCF8576CTD
PCF8576CTD
PCF8576CTD
PCF8576CTD
Philips Semiconductors
6.4
The static LCD drive mode is used when a single
backplane is provided in the LCD. Backplane and segment
drive waveforms for this mode are shown in Fig.4.
When two backplanes are provided in the LCD, the 1 : 2
multiplex mode applies. The PCF8576 allows use of
1
2001 Oct 02
2
bias or
Universal LCD driver for low multiplex rates
V
V
V
V
off(rms)
state1
on(rms)
state2
LCD drive mode waveforms
t ( )
t ( )
1
=
=
=
=
3
0 V
V
bias in this mode as shown in Figs 5 and 6.
V
V
op
S
S
n
n
t ( ) V
+
1
t ( ) V
–
–
BP0
BP0
t ( )
t ( )
Fig.4 Static drive mode waveforms (V
state 1
state 2
S n 1
BP0
S n
V LCD
V LCD
V LCD
V op
V DD
V DD
V DD
V op
V op
V op
0
0
(b) resultant waveforms
(a) waveforms at driver
at LCD segment
9
T frame
When three backplanes are provided in the LCD, the 1 : 3
multiplex drive mode applies, as shown in Fig.7.
When four backplanes are provided in the LCD, the 1 : 4
multiplex drive mode applies, as shown in Fig.8.
op
state 1
(on)
LCD segments
= V
MBE539
DD
V
state 2
(off)
LCD
).
Product specification
PCF8576