參數(shù)資料
型號: P83C834
廠商: NXP Semiconductors N.V.
英文描述: 8-bit microcontrollers with LCD-driver
中文描述: 8位微控制器與LCD驅(qū)動器
文件頁數(shù): 24/36頁
文件大?。?/td> 165K
代理商: P83C834
1997 Jul 03
24
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
P83C434; P83C834
6.7.4.4
1 : 4 multiplex drive mode
When four backplanes are provided in the LCD, the 1 : 4 multiplex mode applies, as shown in Fig.16.
handbook, full pagewidth
MGG018
state 1
0
BP0
(b) resultant waveforms
at LCD element
LCD elements
state 2
BP1
state 1
state 2
0
BP2/S23
(a) waveforms at driver
BP3/S22
Tframe
Vop
Vop/3
Vop/3
2Vop/3
2Vop/3
Vop
Vop
Vop/3
Vop/3
2Vop/3
2Vop/3
Vop
VDD(P)
VSS
+
2Vop/3
VSS
VDD(P)
VSS
+
2Vop/3
VSS
+
Vop/3
VSS
VDD(P)
VSS
+
2Vop/3
VSS
+
Vop/3
VSS
VDD(P)
VSS
+
2Vop/3
VSS
+
Vop/3
VSS
VDD(P)
VSS
+
2Vop/3
VSS
+
Vop/3
VSS
VDD(P)
VSS
+
2Vop/3
VSS
+
Vop/3
VSS
VDD(P)
VSS
+
2Vop/3
VSS
+
Vop/3
VSS
VDD(P)
VSS
+
2Vop/3
VSS
+
Vop/3
VSS
VSS
+
Vop/3
Sn
+
1
Sn
+
2
Sn
+
3
Sn
Fig.16 Waveforms for the 1 : 4 multiplex drive mode (V
op
= V
DD(P)
V
SS
).
V
state1
t)
V
S
n
t)
V
BP0
t)
=
V
on(rms)
0.577V
op
=
V
state2
t)
V
S
n
t)
V
BP0
t)
=
V
off(rms)
0.333V
op
=
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