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參數資料
型號: PCF8576
廠商: NXP Semiconductors N.V.
英文描述: Universal LCD driver for low multiplex rates
中文描述: 通用LCD驅動器的低復用率
文件頁數: 9/40頁
文件大小: 243K
代理商: PCF8576
1998 Feb 06
9
Philips Semiconductors
Product specification
Universal LCD driver for low multiplex
rates
PCF8576
6.4
LCD drive mode waveforms
6.4.1
S
TATIC DRIVE MODE
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.
6.4.2
1 : 2
MULTIPLEX DRIVE MODE
When two backplanes are provided in the LCD, the 1 : 2
multiplex mode applies. The PCF8576 allows use of
1
2
bias or
1
3
bias in this mode as shown in Figs 5 and 6.
6.4.3
1 : 3
MULTIPLEX DRIVE MODE
When three backplanes are provided in the LCD, the 1 : 3
multiplex drive mode applies, as shown in Fig.7.
6.4.4
1 : 4
MULTIPLEX DRIVE MODE
When four backplanes are provided in the LCD, the 1 : 4
multiplex drive mode applies, as shown in Fig.8.
V
state1
t)
V
S
n
t)
V
BP0
t)
=
V
on(rms)
V
op
=
V
state2
t)
V
S
n
1
+
t)
V
BP0
t)
=
V
off(rms)
0 V
=
Fig.4 Static drive mode waveforms (V
op
= V
DD
V
LCD
).
MBE539
VDD
VLCD
VLCD
VDD
VLCD
Vop
Vop
state 1
0
BP0
Sn
Sn 1
Vop
Vop
state 2
0
(a) waveforms at driver
(b) resultant waveforms
at LCD segment
LCD segments
state 1
(on)
state 2
(off)
Tframe
VDD
相關PDF資料
PDF描述
PCF8576C Universal LCD driver for low multiplex rates
PCF8576CH Universal LCD driver for low multiplex rates
PCF8576U Universal LCD driver for low multiplex rates
PCF8577C LCD direct/duplex driver with I2C-bus interface
PCF8577CP LCD direct/duplex driver with I2C-bus interface
相關代理商/技術參數
參數描述
PCF8576_01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates
PCF8576C 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates
PCF8576C_10 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates
PCF8576CH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal LCD driver for low multiplex rates
PCF8576CH/1 功能描述:LCD 驅動器 160 SEGMENT LCD SEGMENT DRIVER RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
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