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參數資料
| 型號： | LC74770M |
| 元件分類： | 畫面疊加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁數： | 5/11頁 |
| 文件大小： | 252K |
| 代理商： | LC74770M |
Serial Data Input Timing
Pin Functions
No. 4248-3/11
LC74770M
No.
Symbol
Pin
Function
1VSS
Ground pin
Ground connection
2
OSCIN
LC oscillator pin
Connections for the coil and capacitor that form the oscillator that generates the character output
3
OSCOUT
dot clock.
4CKOUT/TEST
Clock output/test
Provides the OSCOUT output (when RST is low) and the test mode output.
output pin
5P0
General-purpose port 0
General-purpose port (PORT0) output
output pin
6P1
General-purpose port 1
General-purpose port (PORT1) output
output pin
7CS
Enable input pin
Enable input for the serial data input function. Serial data input is enabled when this pin is low.
A pull-up resistor is built in, i.e., this is a hysteresis input.
8
SCLK
Clock input pin
Clock input for the serial data input function. A pull-up resistor is built in,
i.e., this is a hysteresis input.
9
SIN
Data input pin
Serial data input. A pull-up resistor is built in, i.e., this is a hysteresis input.
10
VSS
Ground pin
Ground connection
11
NC
No connection
12
NC
No connection
Unused pins.
13
NC
No connection
These pins must be left open or connected to ground.
14
NC
No connection
15
CHA1
Character 1 output pin
System 1 character data output
16
BLK1
Blank 1 output pin
System 1 blank data output
17
CHA2
Character 2 output pin
System 2 character data output
18
BLK2
Blank 2 output pin
System 2 blank data output
19
P3
General-purpose port 3
General-purpose port (PORT3) output
output pin
20
P2
General-purpose port 2
General-purpose port (PORT2) output
output pin
21
VSYNC
Vertical synchronizing
Input for the vertical synchronizing signal (active low)
signal input pin
22
HSYNC
Horizontal synchronizing
Input for the horizontal synchronizing signal (active low)
signal input pin
23
RST
Reset input pin
System reset input (active low) A pull-up resistor is built in, i.e., this is a hysteresis input.
24
VDD
Power supply pin (+5 V)
Power supply (+5 V)
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