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參數(shù)資料
| 型號： | MC14499P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | 7-Segment LED Display Decoder/Driver with Serial Interface |
| 中文描述： | LED DISPLAY DRIVER, PDIP18 |
| 封裝： | PLASTIC, DIP-18 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 161K |
| 代理商： | MC14499P |
MC14499
2
MOTOROLA
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Functional operation should be restricted to the limits in the Electrical Characteristics table
or Circuit Operation section.
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ELECTRICAL CHARACTERISTICS
(VDD = 4.5 to 6.5 V)
Characteristic
Symbol
0
°
C
25
°
C
70
°
C
Unit
Min
Max
Min
Max
Min
Max
Serial Port Input Voltage
‘0’ Level
‘1’ Level
VIL
VIH
—
0.7 x VDD
0.3 x VDD
—
—
0.7 x VDD
0.3 x VDD
—
—
0.7 x VDD
0.3 x VDD
—
V
Serial Port Input Current
(Vin = 0 to VDD)
Iin
—
±
0.1
—
±
0.1
—
±
1.0
μ
A
Oscillator Input Voltage
‘0’ Level
‘1’ Level
VIL
VIH
—
0.75 x VDD
0.25 x VDD
—
—
0.75 x VDD
0.25 x VDD
—
—
0.8 x VDD
0.2 x VDD
—
V
Oscillator Input Current
VOSC = 0
VOSC = VDD
IIL
IIH
—
—
100
– 100
30
– 30
80
– 80
10
– 10
—
—
μ
A
Segment Driver Voltage Below VDD
Iout = 50 mA
Iout = 10 mA
VOH
—
—
1.1
0.8
—
—
1.0
0.75
—
—
1.1
0.8
V
Segment Driver Off Leakage Vout = 0
Digit Drivers
Source (On)
Sink (Off)
IOZ
—
100
—
50
—
100
μ
A
Vout = 0.8 V
Vout = 0.5 V
IOH
IOL
6
– 0.2
—
—
5.5
– 0.2
—
—
4
– 0.1
—
—
mA
Supply Current
Vin = 0, Iout = 0,
COSC = 0.015
μ
F
IDD
—
1
—
1
—
1
mA
Maximum Power Dissipation
PD
—
500
—
500
—
500
mW
SWITCHING CHARACTERISTICS
(VDD = 5 V
±
10%, TA = 0 to 70
°
C)
Characteristic
Figure
No.
Symbol
Min
Max
Unit
Clock High Time
2
tCH
tCL
tCR
tCF
2
—
μ
s
Clock Low Time
2
2
—
μ
s
Clock Rise Time
2
—
2
μ
s
Clock Fall Time
2
—
2
μ
s
Enable Lead Time
2
tE LEAD
tE LAG
tD SUP
tD HOLD
1/tSCAN
tOD
tOS
tOV
200
—
ns
Enable Lag Time
2
200
—
ns
Data Set–Up Time
2
200
—
ns
Data Hold Time
2
1
—
μ
s
Scanner Frequency*
4
50
300
Hz
OSC/Digit Lead Time
4
—
10
μ
s
OSC/Segment Lead Time
4
—
10
μ
s
Digit Overlap
4
—
5
μ
s
* Scanner Capacitance = 0.022
μ
F.
This device contains circuitry to protect the
inputs against damage due to high static
voltages or electric fields; however, it is ad-
vised that normal precautions be taken to avoid
application of any voltage higher than maxi-
mum rated voltages to this high impedance
circuit. For proper operation, it is recom-
mended that Vin and Vout be constrained to
the range VSS
≤
(Vin or Vout)
≤
VDD.
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