
LC74711
No. 4245-4/16
Pin Functions
Pin No.
Pin Symbol
Pin name
Functions
1VSS1
Ground pin
Pin for connecting to ground (GND) (grounding pin for digital system).
2
Xtal IN
Xtal oscillation pin
Pin for connecting to capacitor or crystal of crystal oscillator for internal
3
Xtal OUT
synchronizing signal oscillation applications.
4
TEST
Test output pin
Pin for test data output.
5
RST
Reset input pin
Pin for system reset input (hysteresis input).
6
SCLK
Clock input pin
Pin for clock input using serial data input (hysteresis input).
7
SIN
Data input pin
Pin for serial data input (hysteresis input). Input in 16-bit units.
8CS
Enable input pin
Pin for enable input for serial data processing (hysteresis input). “L” serial data
input switches to enable.
9
LVBK
Blanking level adjustment
input pin
Pin for level input for blanking level adjusting.
10
LVCHA
Character level adjustment
input pin
Pin for level input for character level adjusting.
11
VDD2
Supply pin
Pin for power supply for adjusting signal level of composite video (power
supply for analog system).
12
CV OUT
Video signal output pin
Pin for composite video signal output.
13
NC
Non connection.
14
CV IN
Video signal input pin
Pin for composite video signal input.
15
VDD1
Power supply pin
Pin for power supply (+5V).
16
SYNI
Synchronizing separator
circuit input pin
Pin for input of separator circuit composite synchronizing signal.
17
SEPC
Synchronizing separator
circuit adjustment pin
Pin for adjusting synchronizing separator circuit (connecting capacitor).
18
SEP OUT
Composite synchronizing
signal output pin
Pin for output of composite synchronizing signal for synchronizing separator circuit.
19
SEP IN
Vertical synchronizing
signal input pin
Pin for input of vertical synchronizing signal and integrating output signal of SEP OUT
pin. Applied when connecting an integrating circuit to the SEP OUT pin.
20
OSC OUT
LC oscillation pin
Pin for connecting a capacitor or oscillator coil for pixel clock generation and
21
OSC IN
character output applications.
22
VDD1
Power supply pin (+5V)
Pin for power supply (+5V).