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參數(shù)資料
| 型號： | PCF88132 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | (67 + 1) x 102 pixels matrix LCD driver |
| 中文描述： | （67 1）× 102像素矩陣LCD驅(qū)動器 |
| 文件頁數(shù)： | 37/72頁 |
| 文件大小： | 446K |
| 代理商： | PCF88132 |
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2004 Mar 05
37
Philips Semiconductors
Product specification
(67 + 1)
×
102 pixels matrix LCD driver
PCF8813
The generated voltage at V
LCD
is dependent on the
temperature, programmed temperature coefficient (TC)
and the programmed voltage at the reference temperature
(T
CUT
):
T
CUT
and voltages a and b for each temperature
coefficient are quoted in Table 17. The maximum voltage
that can be generated is dependent on the voltage of V
DD2
and the display load current.
Astheprogrammingrangefortheinternallygenerated
V
LCD
allows values above the maximum allowed V
LCD
,
the user must ensure that while setting the V
PR
register and selecting the temperature compensation,
under all conditions and including all tolerances the
V
LCD
maximum limit of 9.0 V will never be exceeded.
For a particular liquid crystal, the optimum V
LCD
can be
calculated for a given multiplex rate. For 1 : 68, the
optimum operating voltage of the liquid crystal can be
calculated as;
where V
th
is the threshold voltage of the liquid crystal used.
V
LCD
a
V
OP
b
×
+
[
]
1
TC
T
T
CUT
–
(
)
×
+
[
]
×
=
V
LCD
68
+
2
1
68
----1
–
×
--------1
V
th
×
6.98
V
th
×
=
=
Table 17
Parameters of HV generator programming (typical values)
Nominal temperature = 27
°
C; temperature coefficients calculated at nominal V
LCD
= 8.6 V.
SYMBOL
PARAMETER
TC0
TC1
TC2
TC3
UNIT
a
b
T
CUT
TC
first level V
LCD
voltage
programmed voltage step
reference temperature
temperature coefficient
4.57
30.5
27
0.00
4.27
28.5
27
0.25
4.01
26.7
27
0.48
3.84
25.6
27
0.64
V
mV
°
C
mV/K
handbook, full pagewidth
MGT847
00
01
02
a
VLCD
VOP
03
04
05
06
. . .
. . .
FD
FE
FF
b
Fig.35 V
LCD
as a function of V
OP
[7:0] programming.
If V
PR
[6:0] is set to zero, the charge pump is turned off.
Depending on V
PR
restrictions defined in Table 17 and depending on V
CAL
, not all V
OP
[7:0] values can be selected.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCF88132DA | (67 + 1) x 102 pixels matrix LCD driver |
| PCF8813U | (67 + 1) x 102 pixels matrix LCD driver |
| PCF8820 | 67 x 101 Grey-scale/ECB colour dot matrix LCD driver |
| PCF8820U | 67 x 101 Grey-scale/ECB colour dot matrix LCD driver |
| PCF8831 | STN RGB - 160 output row driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCF88132DA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:(67 + 1) x 102 pixels matrix LCD driver |
| PCF8813U | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:(67 + 1) x 102 pixels matrix LCD driver |
| PCF8820 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:67 x 101 Grey-scale/ECB colour dot matrix LCD driver |
| PCF8820U | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:67 x 101 Grey-scale/ECB colour dot matrix LCD driver |
| PCF8831 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:STN RGB - 160 output row driver |
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