參數(shù)資料
型號(hào)： UPD16640C
廠商： NEC Corp.
英文描述： 300/309-OUTPUT TFT-LCD SOURCE DRIVER 64 GRAY SCALE
中文描述： 300/309-OUTPUT TFT - LCD的源驅(qū)動(dòng)64灰階
文件頁(yè)數(shù)： 5/16頁(yè)
文件大?。?/td> 105K
代理商： UPD16640C
Data Sheet S11269EJ1V1DS00
5
μ
PD16640C
4. RELATION BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE
The 11 major points on the
γ
-characteristic curve of the LCD panel are arbitrarily set by external power supplies V
0
through V
10
. If the display data is 00H or 3FH, gray scale voltage V
0
or V
10
is output. If the display data is in the
range 01H to 3EH, the high-order 3 bits select an external powers pair V
n+1
, V
n
. The low-order 3 bits evenly divide
the range of V
n+1,
V
n
into eight segments by means of D/A conversion (however, the ranges from V
9
to V
8
and from V
2
to V
1
are divided into seven segments) to output a 64-grayscale voltage.
D
X5
(MSB)
D
X4
D
X3
D
X2
D
X1
D
X0
(LSB)
D
X5
0
0
0
0
1
1
1
1
D
X4
0
0
1
1
0
0
1
1
D
X3
0
1
0
1
0
1
0
1
V
n+1
-V
n
V
1
-V
2
V
2
-V
3
V
3
-V
4
V
4
-V
5
V
5
-V
6
V
6
-V
7
V
7
-V
8
V
8
-V
9
V
n
V
n+1
000
1
001
2
010
3
011
D
X2
-D
X0
4
100
5
101
6
110
7
111
8
High-order 3 bits :
γ
-corrected power selected
(V
n+1
-V
n)
Low-order 3 bits : 3-bit D/A
(range V
n
-V
n+1
is divided into 7 or 8 segments)
Figure 4-1. Relation between Input Data and
γ
-corrected Voltage
0.1 V
0.1 V
V
1
V
2
V
3
V
4
V
5
V
6
V
7
V
8
V
9
0
7
F
17
1F
Input data (HEX)
27
2F
37
3F
V
DD2
V
0
V
SS2
V
10
gray scale supply specified
by 00H
7 segments
8 segments
8 segments
8 segments
8 segments
8 segments
8 segments
7 segments
gray scale supply specified
by 3FH
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD16640CN 制造商:NEC 制造商全稱:NEC 功能描述:300/309-OUTPUT TFT-LCD SOURCE DRIVER 64 GRAY SCALE
UPD16640CN-XXX 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
UPD16641 制造商:NEC 制造商全稱:NEC 功能描述:SOURCE DRIVER FOR 240-OUTPUT TFT-LCD 64 GRAY SCALES
UPD166413T1F-E1 制造商:NEC Electronics Corporation 功能描述:
UPD166413T1FSSA 制造商:NEC Electronics Corporation 功能描述:
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