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參數(shù)資料
| 型號： | PCF8811 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 80 x 128 pixels matrix LCD driver |
| 中文描述： | 80 × 128像素矩陣LCD驅(qū)動器 |
| 文件頁數(shù)： | 55/73頁 |
| 文件大?。?/td> | 434K |
| 代理商： | PCF8811 |
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2004 May 17
55
Philips Semiconductors
Product specification
80
×
128 pixels matrix LCD driver
PCF8811
22 MODULE MAKER PROGRAMMING
The One Time Programmable (OTP) technology is
implemented on the PCF8811. It enables the module
maker to program some extended features of the
PCF8811 after it has been assembled on an LCD module.
Programming is made under the control of the interfaces
and the use of one special pin. This pin must be made
available on the module glass but need not to be accessed
by the set maker.
The PCF8811 features 3 module maker programmable
parameters:
V
LCD
calibration
Temperature coefficient selection
Seal bit.
22.1
V
LCD
calibration
The first feature included is the ability to adjust the V
LCD
voltage with a 5-bit code (MMVOPCAL). This code is
implemented in twos complement notation giving rise to a
positive or negative offset to the V
PR
register. This is in the
same manner as the on-glass calibration pins V
OS
.
In theory, both may be used together but it is
recommended that the V
OS
pins are tied to V
SS
when OTP
calibration is being used. This will set them to a default
offset of zero. If both are used then the addition of the two
5-bit numbers must not exceed a 5-bit result otherwise the
resultant value will be undefined. The final adder in the
circuit has underflow and overflow protection. In the event
ofanoverflow,theoutputwillbeclampedto 255;duringan
underflow the output will be clamped to 0.
The final control to the high voltage generator, V
OP
, will be
the sum of all the calibration registers and pins. The V
LCD
equation (4) or (5) given in Section 13.10 must be
extended to include the OTP calibration, as follows;
V
LCD T
T
=
)
MMVOPCAL[4:0]
+
(7)
The possible MMVOPCAL[4:0] values are the same as the
V
OS
[4:0] values; see Table 12.
a
V
OS
[4:0]
V
+
OP
[7:0]
(
)
b
×
+
=
handbook, full pagewidth
MGU287
OTP VLCD calibration: 5-bit offset
MMVOPCAL[4:0]
VOP[7:0]
range: 0 to
+
255
range
16 to
+
15
range
16 to
+
15
range 0 to
+
255
usable range
+
32 to
+
255
to high voltage
generator
laser trim pins: 5-bit offset
VOS[4:0]
VPR register: 8-bit value
VPR[7:0]
+
+
Fig.47 V
LCD
calibration.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| PCF8811MU/2DA/1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80 x 128 pixels matrix LCD driver |
| PCF8811MU/2DA/1,02 | 制造商:NXP Semiconductors 功能描述:LCD DRVR 1.8V/2.5V Die Waffle 制造商:NXP Semiconductors 功能描述:PCF8811MU/UNCASED/WAFLM//2DA/1 - Gel-pak, waffle pack, wafer, diced wafer on film 制造商:NXP Semiconductors 功能描述:LCD DRVR 1.8V/2.5V Die Waffle Waffle 制造商:NXP Semiconductors 功能描述:IC LCD CTLR/DVR CMOS LP UNCASED 制造商:NXP Semiconductors 功能描述:80 x 128 Pixels Matrix LCD Driver |
| PCF8811U/2DA/1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80 x 128 pixels matrix LCD driver |
| PCF8811U/2DA/1，026 | 制造商:NXP Semiconductors 功能描述:PCF8811U/UNCASED/WAFLM//2DA/1 - Gel-pak, waffle pack, wafer, diced wafer on film 制造商:NXP Semiconductors 功能描述:IC MATRIX LCD DRIVER UNCASED |
| PCF8812 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:65 x 102 pixels matrix LCD driver |
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