參數(shù)資料
型號: LC74770
廠商: Sanyo Electric Co.,Ltd.
英文描述: On-Screen Display Controller LSI
中文描述: 屏幕顯示控制器芯片
文件頁數(shù): 3/11頁
文件大小: 125K
代理商: LC74770
Serial Data Input Timing
Pin Functions
No. 4248-3/11
LC74770M
No.
Symbol
Pin
Function
1
V
SS
OSC
IN
OSC
OUT
Ground pin
Ground connection
2
LC oscillator pin
Connections for the coil and capacitor that form the oscillator that generates the character output
dot clock.
3
4
CK
OUT
/TEST
Clock output/test
output pin
Provides the OSC
OUT
output (when RST is low) and the test mode output.
5
P0
General-purpose port 0
output pin
General-purpose port (PORT0) output
6
P1
General-purpose port 1
output pin
General-purpose port (PORT1) output
7
CS
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
V
SS
NC
Ground pin
Ground connection
11
No connection
12
NC
No connection
Unused pins.
These pins must be left open or connected to ground.
13
NC
No connection
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
output pin
General-purpose port (PORT3) output
20
P2
General-purpose port 2
output pin
General-purpose port (PORT2) output
21
VSYNC
Vertical synchronizing
signal input pin
Input for the vertical synchronizing signal (active low)
22
HSYNC
Horizontal synchronizing
signal input pin
Input for the horizontal synchronizing signal (active low)
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
V
DD
Power supply pin (+5 V)
Power supply (+5 V)
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