LC74780M(2001) 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LC74780M Datasheet PDF : 14 Pages
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LC74780, 74780M
Pin Functions
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Name
VSS1
XIN
XOUT
CTRL1
CSYNOUT
OSCIN
OSCOUT
SYNC
CS
SCLK
SIN
VDD2
CVOUT
NC
CVIN
VDD1
SYNCIN
SEPC
SEPOUT
SEPIN
CTRL2
CTRL3
RST
VDD1
Ground
Description
Internal sync signal crystal oscillator capacitor connections or external clock input (2fSC or 4fSC).
Clock input mode select. HIGH for external clock input mode, and LOW for crystal oscillator
mode.
Composite synchronization signal output. During reset (RST LOW), crystal oscillator clock is
output. No output for internal reset command.
LC oscillator input. LC circuit for pixel clock generation character output.
LC oscillator output. LC circuit for pixel clock generation character output.
External synchronization signal check output. HIGH when sync is detected. During reset (RST
LOW), pixel clock is output. No output for internal reset command.
Serial data input enable when LOW, with pull-up resistance (hysteresis input).
Clock input for serial data input, with pull-up resistance (hysteresis input).
Serial data input, with pull-up resistance (hysteresis input).
Power supply for composite video image signal level modulation (for analog system).
Composite video image signal output.
No connection.
Composite video image signal input.
5V power supply for digital system.
Synchronization separation circuit input. If internal sync separation circuit is not used, use
SYNCIN to input an external horizontal or composite synchronization signal.
Synchronization separation circuit modulator capacitor connection. Leave open if not used.
Composite synchronization separation circuit output. Outputs SYNCIN signal if internal sync
separation is not used.
Vertical synchronization signal input. Tie to VDD1 if not used.
NTSC/PAL/PAL-M sync signal generation method select input. PAL-M when HIGH.
NTSC/PAL/PAL-M selected by command when LOW.
SEPIN input control. VSYNC input signal when LOW, and not input when HIGH.
System reset input, with pull-up resistance (hysteresis input).
5V power supply for digital system.
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter
VDD1 and VDD2 supply voltage
Input voltage range for all inputs
CSYNOUT, SYNC and SEPOUT output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN max
VOUT max
Pd max
Ta=25°C
Topr
Tstg
Conditions
Ratings
Unit
VSS– 0.3 to VSS+7.0 V
VSS– 0.3 to VDD+0.3 V
VSS– 0.3 to VDD+0.3 V
350 mW
– 30 to +70 ˚C
– 40 to +125 ˚C
Allowable Operating Ranges at Ta = –30 to +70˚C
Parameter
Logic supply voltage
Analog supply voltage
Logic supply voltage range
Analog supply voltage range
Symbol
VDD1
VDD2
VDD1
VDD2
Pin Assignment
Conditions
Ratings
Unit
5.0 V
5.0 V
4.5 to 5.5 V
4.5 to 1.27VDD1 V
No.4490–3/14
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