- 您现在的位置：买卖IC网 > PDF目录30734 > LC74794M ON-SCREEN DISPLAY IC, PDSO30 PDF资料下载
参数资料
| 型号： | LC74794M |
| 元件分类： | 画面叠加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDSO30 |
| 封装： | MFP30S |
| 文件页数： | 12/30页 |
| 文件大小： | 320K |
| 代理商： | LC74794M |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页当前第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
Pin Assignment
No. 5557-2/30
LC74794, 74794M
Pin Functions
Pin no.
Pin
Function
Notes
1VSS1
Ground
Ground connection (digital system ground)
2
XtalIN
Crystal oscillator
These pins are used either to connect a crystal and capacitor to form an external crystal
3
XtalOUT
(MUTE input)
oscillator to generate internal synchronizing signals, or to input an external clock signal (2fsc
(MUTE)
or 4fsc). As a mask option, the XtalOUT pin can be set to function as the MUTE input pin.
When the MUTE pin is set low, the video output is held at the pedestal level. (A pull-up
resistor is built in so the input has hysteresis characteristics.)
Switches the mode between external clock input and crystal oscillator operation. A low level
4
CTRL1
Crystal oscillator input switching
selects crystal oscillator operation and a high level selects external clock input. As a mask
(CHABLK) (CHABLK output)
option, the CTRL1 input pin can be set to function as the CHABLK (character border)
output. This is a 3-value output.
5
CS2
Enable input 2
PDC/VPS data output enable input. Data output is enabled by a low-level input. (A pull-up
resistor is built in so the input has hysteresis characteristics.)
6
SCLK2
Clock input 2
Clock input for PDC/VPS data output
(A pull-up resistor is built in so the input has hysteresis characteristics.)
7
DOUT
Data output
PDC/VPS data output
(This is either an n-channel open-drain output or a CMOS output.)
Outputs the state of the external synchronizing signal presence/absence judgment.
8
SYNCJDG
External synchronizing signal judgment
Outputs a high level when synchronizing signals are present.
output
Outputs the crystal oscillator clock when CS1 is low and RST is low. (This signal is not
output on command resets.)
Continued on next page.
相关PDF资料 |
PDF描述 |
|---|---|
| LC74794 | ON-SCREEN DISPLAY IC, PDIP30 |
| LC74795M | ON-SCREEN DISPLAY IC, PDSO30 |
| LC74795 | ON-SCREEN DISPLAY IC, PDIP30 |
| LC74799 | ON-SCREEN DISPLAY IC, PDIP30 |
| LC74799M | ON-SCREEN DISPLAY IC, PDSO30 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LC74795 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
| LC74795M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
| LC74798 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:On-Screen Display Controller IC |
| LC74798M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:On-Screen Display Controller IC |
| LC74799 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:On-Screen Display Controller IC |
发布紧急采购，3分钟左右您将得到回复。