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參數(shù)資料
| 型號： | HT1647 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 4-Level Gray Scale 64 x 16 LCD Controller for I/O Μc(4級灰標、用于I/O接口微機的64 x 16模式 LCD控制器 Controller for I/O Μc) |
| 中文描述： | 4級灰度64 × 16 LCD控制器的I / O微晶（4級灰標，用于的I / O接口微機的64 × 16模式液晶顯示控制器控制的I / O微晶） |
| 文件頁數(shù)： | 11/24頁 |
| 文件大?。?/td> | 190K |
| 代理商： | HT1647 |
HT1647
11
April 21, 2000
Name
Command Code
Function
FRAME 170Hz
X
100
-0001-1000-XXXX
Select 170Hz frame frequency and active segment
signal width can be divided into 13 sections
FRAME 89Hz
X
100
-0001-1101-XXXX
Select 89Hz frame frequency and active segment sig-
nal width can be divided into 24 sections
Frame frequency selection command code
factory gray scale in every level. HT1647 provides
5-bit PWM data to control the length of the sec-
tion.Inotherwords,amax.24grayscalesaregen-
erated by 5-bit binary PWM data. At FRAME
89Hz mode, the HT1647 only provides a max. of
24 adjustable gray scales although 32 is the ex-
pressed max. value by 5 bits binary code. When 5
bits binary code value is more than 23, the PWM
control circuit uniformly regards 23. To increase
PWM data indicates to increase the length of the
activesegmentsignal.Thevariedlengthoftheac-
tive segment signal displays varied gray scale in
TN-type, STN-type LCDs (refer to table 1). Simi-
larly, it displays varied color in ECB-type LCDs.
The color display is derived from ECB-type LCD
specification. At FRAME 170Hz mode, the
HT1647 only provides a max. of 13 adjustable
gray scales although 32 is the expressed max.
value by 5 bits binary code. When the 5 bits bi-
nary code value is more than 12, the PWM con-
trol circuit uniformly regards 12. The user must
appoint four kinds of PWM data to four kinds of
different gray scale level by commanding PWM
data (refer to table 2).
Name
Command Code
Function
GRS LEVEL 1
X
100
-001 B4-B3 B2 B1 B0-XXXX Set PWM data in gray scale level 1
GRS LEVEL 2
X
100
-010 B4-B3 B2 B1 B0-XXXX Set PWM data in gray scale level 2
GRS LEVEL 3
X
100
-011 B4-B3 B2 B1 B0-XXXX Set PWM data in gray scale level 3
GRS LEVEL 4
X
100
-100 B4-B3 B2 B1 B0-XXXX Set PWM data in gray scale level 4
Four kinds of gray scale level command code
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT1647(100QFP)A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| HT1647_05 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:4-Level Gray Scale 64x16 LCD Controller for I/O MCU |
| HT1647_10 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:4-Level Gray Scale 6416 LCD Controller for I/O MCU |
| HT1647A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:64x16 LCD Controller for I/O MCU |
| HT1647A_11 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:64x16 LCD Controller for I/O MCU |
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