参数资料
型号: LC74711
元件分类: 画面叠加
英文描述: ON-SCREEN DISPLAY IC, PDIP22
封装: SDIP-22
文件页数: 9/16页
文件大小: 504K
代理商: LC74711
LC74711
No. 4245-2/16
Specifications
Absolute Maximum Ratings
Item
Symbol
Conditions/Pins
Ratings
Unit
Maximum supply voltage
VDD max
VDD1, VDD2
VSS–0.3 to VSS+7.0
V
Maximum input voltage
VIN max
All input pins
VSS–0.3 to VDD+0.3
V
Maximum output voltage
VOUT max
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
Allowable Operating Ranges at Ta = –30 to +70°C
Item
Symbol
Conditions/Pins
Ratings
Unit
min
typ
max
Supply voltage
VDD1
VDD1 pin
4.5
5.0
5.5
V
VDD2
VDD2 pin
4.5
5.0
1.27VDD1
V
Input “H” level voltage
VIH
CS, SIN, RST, SCLK, SEPIN pin
0.8VDD1
VDD1+0.3
V
Input “L” level voltage
VIL
CS, SIN, RST, SCLK, SEPIN pin
VSS–0.3
0.2VDD1
V
Composite video input voltage
VIN1
CVIN pin
2VP-P
V
VIN2
SYNI pin
2VP-P
2.5VP-P
Oscillation frequency
FOSC1
Xtal oscillation pin (2 fsc)
7.159
MHz
FOSC2
Xtal oscillation pin (4 fsc)
14.318
MHz
FOSC3
LC oscillation pin (when using LC oscillation)
57
10
MHz
Electrical Characteristics at Ta = –30 to +70 °C, default of VDD1 = 5 V
Item
Symbol
Pins
Conditions
Ratings
Unit
min
typ
max
Output off leak current
Ileak
CV OUT pin
10
A
Output “H” level voltage VOH1
SEP OUT pin
VDD1 = 4.5V, IOH = –1.0mA
3.5
V
Output “L” level voltage VOL1
SEP OUT pin
VDD1 = 4.5V, IOL = 1.0mA
1.0
V
Input current
IIH
VIN = VDD1
1A
IIL
OSCIN pin
VIN = VSS
–1
A
IDD1
VDD1 pin
All output are OPEN
10
mA
Xtal = 14.318MHz, LC = 7MHz
IDD2
VDD2 pin
VDD2 = 5.0V
15
mA
Timing Characteristics at Ta = –30 to +70°C, VDD1 = 5 ±0.5 V
Item
Symbol
Conditions/Pins
Ratings
Unit
min
typ
max
Input minimum pulse width
tw (SCLK)
SCLK pin
200
ns
tw (CS)
CS pin (with CS set to “H” period)
1
s
Data setup time
tsu (CS)
CS pin
200
ns
tsu (SIN)
SIN pin
200
ns
Data hold time
th (CS)
CS pin
2
s
th (SIN)
SIN pin
200
ns
Single word and write time
tword
16-bit write time
10
s
twt
RAM data write time
1
s
Current consumption
during operation
CS, SIN, RST,
SCLK, SEPIN pin
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