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參數(shù)資料
| 型號(hào)： | LC74751 |
| 元件分類： | 畫面疊加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDIP22 |
| 封裝： | SDIP-22 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 540K |
| 代理商： | LC74751 |
Pin Assignment
No. 5396-2/15
LC74751
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Supply voltage
VDD1
4.5
5.0
5.5
V
VDD2
4.5
5.0
1.27 VDD1
V
Input high-level voltage
VIH
CS, SIN, RST, SCLK, and SEPIN
0.8 VDD1
VDD1 + 0.3
V
Input low-level voltage
VIL
CS, SIN, RST, SCLK, and SEPIN
VSS – 0.3
0.2 VDD1
V
Composite video input voltage
VIN1
CVIN
2 Vp-p
V
VIN2
SYNIN
2 Vp-p
2.5 Vp-p
V
fOSC1
Crystal oscillator pins (NTSC: 2fsc mode)
7.15909
MHz
fOSC2
Crystal oscillator pins (NTSC: 4fsc mode)
14.31818
MHz
Oscillator frequency
fOSC3
Crystal oscillator pins (PAL: 4fsc mode)
17.73447
MHz
fOSC4
Crystal oscillator pins (PAL-M: 4fsc mode)
14.30244
MHz
fOSC5
Crystal oscillator pins (PAL-N: 4fsc mode)
14.32822
MHz
fOSC6
LC oscillator pin (When an LC oscillator is used)
57
11
MHz
Allowable Operating Ranges
Specifications
Absolute Maximum Ratings
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VDD
VDD1 and VDD2
VSS–0.3 to VSS+7.0
V
Input voltage
VIN
All input pins
VSS–0.3 to VDD+0.3
V
Output voltage
VOUT
VSS–0.3 to VDD+0.3
V
Allowable power dissipation
Pd max
Ta = 25°C
300
mW
Operating temperature
Topr
–30 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Output off leakage current
Ileak
CVOUT
10
A
Output high-level voltage
VOH1
SEPOUT: VDD1 = 4.5 V, IOH = –1.0 mA
3.5
V
Output low-level voltage
VOL1
SEPOUT: VDD1 = 4.5 V, IOL = 1.0 mA
1.0
V
Input current
IIH
CS, SIN, RST, SCLK, and SEPIN: VIN = VDD1
1A
IIL
OSCIN: VIN = VSS
–1
A
Operating current drain
IDD1
VDD1; All outputs open, Xtal: 17.734MHz, LC = 7MHz
10
mA
IDD2
VDD2; VDD2 = 5.0 V
15
mA
Electrical Characteristics at Ta = –30 to +70°C, VDD1 = 5 V unless otherwise specified
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