LC74770 データシートの表示（PDF） - SANYO -> Panasonic
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LC74770 Datasheet PDF : 11 Pages
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Serial Data Input Timing
LC74770M
Pin Functions
No.
Symbol
Pin
Function
1
VSS
Ground pin
2
OSCIN
LC oscillator pin
3
OSCOUT
Clock output/test
4
CKOUT/TEST output pin
Ground connection
Connections for the coil and capacitor that form the oscillator that generates the character output
dot clock.
Provides the OSCOUT output (when RST is low) and the test mode output.
General-purpose port 0
5
P0
output pin
General-purpose port (PORT0) output
General-purpose port 1
6
P1
output pin
General-purpose port (PORT1) output
Enable input for the serial data input function. Serial data input is enabled when this pin is low.
7
CS
Enable input pin
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
11
NC
No connection
Ground connection
12
NC
No connection
13
NC
No connection
Unused pins.
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
General-purpose port 3
19
P3
output pin
General-purpose port (PORT3) output
General-purpose port 2
20
P2
output pin
General-purpose port (PORT2) output
Vertical synchronizing
21
VSYNC
signal input pin
Input for the vertical synchronizing signal (active low)
Horizontal synchronizing
22
HSYNC
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
VDD
Power supply pin (+5 V) Power supply (+5 V)
No. 4248-3/11
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