- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385397 > HT1647 (Holtek Semiconductor Inc.) 4-Level Gray Scale 64 x 16 LCD Controller for I/O Μc(4級灰標(biāo)、用于I/O接口微機的64 x 16模式 LCD控制器 Controller for I/O Μc) PDF資料下載
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(biāo)、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(biāo)，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)： | 9/24頁 |
| 文件大小： | 190K |
| 代理商： | HT1647 |
HT1647
9
April 21, 2000
: # =
% # =
$ # =
.
0
1
>
4
>
-
Figure 1
% # =
- "
% # =
.
.
0
1
-
Figure 2
!
.
% # =
% # =
) " !
1
!
1
.
0
1
$
$
!
-
-
Figure 3
Functional Description
System oscillator
The HT1647 system clock is used to generate
the time base/Watchdog Timer (WDT) clock fre-
quency, LCD driving clock, and tone frequency.
The source of the clock may be from an on-chip
RC oscillator (32kHz), a crystal oscillator
(32.768kHz), or an external 32kHz clock by the
S/W setting. The configuration of the system os-
cillator is as shown. After the SYS DIS com-
mand is executed, the system clock will stop
and the LCD bias generator will turn off. That
command is, however, available only for the
on-chip RC oscillator or for the crystal oscilla-
tor. Once the system clock stops, the LCD dis-
play will become blank, and the time base/WDT
loses its function as well.
The LCD OFF command is used to turn the
LCD bias generator off. After the LCD bias gen-
erator switches off by issuing the LCD OFF
command, using the SYS DIS command re-
duces power consumption, serving as a system
power down command. But if the external clock
source is chosen as the system clock, using the
SYS DIS command can neither turn the oscilla-
tor off nor carry out the power down mode. The
crystal oscillator option can be applied to con-
nect an external frequency source of 32kHz to
the OSCI pin. In this case, the system fails to
enter the power down mode, similar to the case
in the external 32kHz clock source operation.
Attheinitialsystempoweron,theHT1647isat
the SYS DIS state.
! "
!
( 7 9 ' 6 @
& A!
( 7 1 @
B
( 7 1 @
!
1
System oscillator configuration
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT16511 | 1/8 to 1/16 Duty VFD Controller |
| HT16512 | 1/4 to 1/11 Duty VFD Controller |
| HT16515 | 1/4 to 1/12 Duty VFD Controller |
| HT1660 | 96 x 32 LCD Controller for I/O MCU |
| HT1670 | 128x32 LCD Controller for I/O MCU |
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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。