參數(shù)資料
型號: M44C588
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 4 MHz, MICROCONTROLLER
文件頁數(shù): 38/44頁
文件大?。?/td> 549K
代理商: M44C588
M44C588
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A1, 11-Nov-97
43 (44)
(a) Waveforms at driver
(b) Resultant waveforms at LCD segment
V EE2
0
–VEE2
V REG
0
–VREG
state1
state2
64 Hz
Time frame
LCD segments
COM0
COM1
COM2
COM3
S00
S01
S02
S03
state1
state2
Segment ON
Segment OFF
V EE1
V REG
V SS
VEE2
94 9032
Figure 34. Waveforms for 4:1 multiplex drive mode
The following formulas are valid in the 4:1 multiplex drive mode at any instant (t):
V
State1(t)
+ V
S01(t) – VCOM0(t)
and
V
State2(t)
+ V
S02(t) – VCOM1(t)
V
ON(rms)
+
V
EE2
3
+ 0.577 V
EE2 and
V
OFF(rms)
+
V
EE2
3
Contrast ratio
+ V
ON(rms)
V
OFF(rms)
+ 1.732
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