參數(shù)資料
型號(hào): P83C834CFP
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-bit microcontrollers with LCD-driver
中文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1.75 MM HEIGHT, PLASTIC, SOT-307-2, QFP-44
文件頁(yè)數(shù): 21/36頁(yè)
文件大小: 165K
代理商: P83C834CFP
1997 Jul 03
21
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
P83C434; P83C834
6.7.4.2
1 : 2 multiplex drive mode
When two backplanes are provided in the LCD, the 1 : 2 multiplex mode applies. The P83C434; P83C834 allows use of
1
2
or
1
3
bias in this mode as shown in Figs 13 and 14.
full pagewidth
MGG015
state 1
0
BP0
(a) waveforms at driver
(b) resultant waveforms
at LCD element
LCD elements
state 2
Tframe
BP1
Vop/2
Vop
Vop
Vop/2
Vop
Vop/2
Vop
Vop/2
state 2
0
state 1
VDD(P)
VDD(P)
VDD(P)
(VDD(P)+VSS)/2
VSS
VDD(P)
(VDD(P)+VSS)/2
VSS
VSS
VSS
Sn
+
1
Sn
Fig.13 Waveforms for the 1 : 2 multiplex mode with
1
2
bias (V
op
= V
DD(P)
V
SS
).
V
state1
t)
V
S
n
t)
V
BP0
t)
=
V
on(rms)
0.791V
op
=
V
state2
t)
V
S
n
t)
V
BP0
t)
=
V
off(rms)
0.354V
op
=
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