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參數(shù)資料
| 型號(hào)： | LC74770 |
| 廠(chǎng)商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | On-Screen Display Controller LSI |
| 中文描述： | 屏幕顯示控制器芯片 |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大?。?/td> | 125K |
| 代理商： | LC74770 |
Specifications
Absolute Maximum Ratings
at Ta = 25°C
Allowable Operating Ranges
at Ta = –30 to +70°C
Electrical Characteristics
at Ta = –30 to +70°C, V
DD
= 5 V unless otherwise specified.
Timing Characteristics
at Ta = –30 to +70°C, V
DD
= 5 ± 0.5 V
No. 4248-2/11
LC74770M
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
max
V
IN
max
V
OUT
max
Pd max
V
DD
All input pins
V
SS
– 0.3 to V
SS
+ 7.0
V
SS
– 0.3 to V
DD
+ 0.3
V
SS
– 0.3 to V
DD
+ 0.3
V
Maximum input voltage
V
Maximum output voltage
BLK1, BLK2, CHA1, CHA2, P0 to P3, CK
OUT
V
Allowable power dissipation
300
mW
Operating temperature
Topr
–30 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
V
DD
V
IH
V
IL
f
OSC
V
DD
RST, CS, SIN, SCLK, HSYNC, VSYNC
4.5
5.0
5.5
V
Input high-level voltage
0.8 V
DD
V
SS
– 0.3
V
DD
+ 0.3
0.2 V
DD
V
Input low-level voltage
RST, CS, SIN, SCLK, HSYNC, VSYNC
V
Oscillator frequency
OSC
IN
and OSC
OUT
oscillator pins
5
7
10
MHz
Parameter
Symbol
Conditions
min
typ
max
Unit
Output high-level voltage
V
OH
BLK1, BLK2, CHA1, CHA2, P0 to P3: V
DD
= 5.0 V,
I
OH
= –1.0 mA
BLK1, BLK2, CHA1, CHA2, P0 to P3: V
DD
= 5.0 V,
I
OL
= 1.0 mA
RST, CS, SIN, SCLK, HSYNC, VSYNC: V
IN
= V
DD
HSYNC, VSYNC: V
IN
= V
SS
V
DD
: all outputs open, LC = 7 MHz
4.5
V
Output low-level voltage
V
OL
0.5
V
Input current
I
IH
I
IL
I
DD
1
μA
–1
μA
Operating current drain
10
mA
Parameter
Symbol
Conditions
min
typ
max
Unit
Minimum input pulse width
t
W (SCLK)
t
W (CS)
t
SU (CS)
t
SU (SIN)
t
h (CS)
t
h (SIN)
t
word
t
wt
SCLK
200
ns
CS (the period that CS is high)
1
μs
Data setup time
CS
200
ns
SIN
200
ns
Data hold time
CS
2
μs
SIN
200
ns
Single word write time
The time to write 8 bits of data
4.2
μs
The time to write RAM data
1
μs
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