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參數(shù)資料
| 型號： | SCF5744 |
| 廠商： | SIEMENS A G |
| 元件分類： | 顯示用LED |
| 英文描述： | 0.270” 4-Character, 5x7 Dot Matrix Serial Input Dot Addressable Intelligent Display |
| 中文描述： | 5X7 DOT MATRIX DISPLAY, HIGH EFFICIENCY GREEN, 6.86 mm |
| 封裝： | PLASTIC, DIP-22 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 93K |
| 代理商： | SCF5744 |
2–202
SCF5740/2/4
Electrical Characteristics
(over Operating Temperature)
Notes
1.
2.
3.
4.
Input/Output Circuits
Peak current
Unused inputs must be tied high.
Contact Siemens for 3.3 volt operation.
External oscillator must be stopped if being used to maintain an I
5
/
3
x I
CC
.
CC
<50
μ
A.
Figures 3 and 4 show the input and output resistor/diode
networks used for ESD protection and to eliminate substrate
latch-up caused by input voltage over/under shoot.
Figures 3 and 4.
Parameter
Min.
Typ.
Max.
Units
Conditions
V
CC
4.5
5.0
5.5
V
I
CC
(Pwr Dwn Mode)
(4)
50
μ
A
V
CC
=5 V, all inputs=0 V or V
CC
I
20 dots/character
CC
4 digits
150
186
mA
V
brightness at 25
C
C=5 V, “#” displayed in all 4 digits at 100%
°
C
I
IL
Input current
–10
μ
A
V
CC
=5 V, V
IN
=0 V (all inputs)
I
IH
Input current
+10
μ
A
V
CC
=V
IN
=5.0 V=0 V (all inputs)
V
IH
3.5
V
V
CC
=4.5 V to 5.5 V
V
IL
1.5
V
V
CC
=4.5 V to 5.5 V
I
OH
(CLK I/O)
–28
mA
V
CC
=4.5 V, V
OH
=2.4 V
I
OL
(CLK I/O)
23
mA
V
CC
=4.5 V, V
OL
=0.4 V
θ
J C-PIN
32
°
C/W
F
Input Frequency
ext
External Clock
120
347
KHz
V
CC
=5.0 V, CLKSEL=0
F
Input Frequency
osc
Internal Clock
120
347
KHz
V
CC
=5.0 V, CLKSEL=1
Clock I/O Bus Loading
240
pF
Clock Out Rise Time
500
ns
V
CC
=4.5 V, V
OH
=2.4 V
Clock Out Fall Time
500
ns
V
CC
=4.5 V, V
OH
=0.4 V
FM, Digit
375
768
1086
Hz
V
CC
1 K
GND
input
V
CC
1 K
GND
input/output
Inputs Clock I/O
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