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參數(shù)資料
| 型號： | LC74781 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | On-Screen Display Controller LSI for VCR Products(用于錄象機的屏幕顯示控制器的大規(guī)模集成電路（LSI）) |
| 中文描述： | 屏幕顯示控制器芯片的錄像機產(chǎn)品（用于錄象機的屏幕顯示控制器的大規(guī)模集成電路（LSI）的） |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 183K |
| 代理商： | LC74781 |
COMMAND3 (Horizontal display start position and horizontal character size setup command)
First byte
Second byte
Note: The register states are all set to zero when the LC74781/M is reset with the RST pin.
COMMAND4 (Display control setup command)
First byte
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
0
Second byte identification bit
6
LC
0
An LC oscillator is used for the dot clock.
Selects the dot clock used in horizontal
character display.
1
A crystal oscillator is used for the dot clock.
5
HP5
(MSB)
0
If HS is the horizontal start position then:
1
5
4
HP4
0
HS = Tc
×
(2
2
n
HP
n
)
1
n = 0
3
HP3
0
1
2
HP2
0
1
1
HP1
0
1
0
HP0
(LSB)
0
1
The horizontal display start position is
set by the six bits HP5 to HP0.
The weight of bit 1 is 2Tc.
Tc: Period of the oscillator connected to OSCIN/OSCOUT in
operating mode.
No. 4988-10/16
LC74781, 74781M
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
1
6
—
0
Command 3 identification code
Set the horizontal display start position and horizontal
character size.
5
—
1
4
—
1
3
HS21
0
1
Second line horizontal character size
2
HS20
0
1
1
HS11
0
1
First line horizontal character size
0
HS10
0
1
HS21
HS20
0
1
0
1 Tc per dot
2 Tc per dot
1
3 Tc per dot
1 Tc per dot
HS11
HS10
0
1
0
1 Tc per dot
2 Tc per dot
1
3 Tc per dot
1 Tc per dot
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
1
6
—
1
Command 4 identification code
Display control
5
—
0
4
—
0
3
TSTMOD
0
Normal operating mode
This bit must be zero.
1
Test mode
0
The RAM erase operation requires about
500 μs (It is executed in the DSPOFF
state.)
2
RAMERS
1
Erase display RAM (set to 7F hexadecimal)
1
OSCSTP
0
Do not stop the crystal oscillator and LC oscillator circuits.
Valid when character display is off in
external synchronization mode.
1
Stop the crystal oscillator and LC oscillator circuits.
0
SYSRST
0
Reset occurs when the CS pin is low, and
the reset is cleared when CS goes high.
1
Reset all registers and turn the display off.
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PDF描述 |
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| LC74782 | On-Screen Display Controller LSI for VCR Products(用于錄象機的屏幕顯示控制器的大規(guī)模集成電路（LSI）) |
| LC74783 | On-Screen Display Controller LSI for VCR Products(用于錄象機的屏幕顯示控制器的大規(guī)模集成電路（LSI）) |
| LC74784 | On-Screen Display Controller LSI for VCR Products(用于錄象機的屏幕顯示控制器的大規(guī)模集成電路（LSI）) |
| LC74785 | On-Screen Display Controller LSI(屏幕顯示控制器規(guī)模集成電路（LSI）) |
| LC74786JM | On-Screen Display Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC74781-9013-E | 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| LC74781-9844-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LC74781JM-9616-E | 制造商:SANYO Semiconductor Co Ltd 功能描述: |
| LC74781M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-screen Video Display Controller for VCR Products |
| LC74781M-9017-E | 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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