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參數(shù)資料
| 型號(hào)： | 74LS47 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | BCD to 7-Segment Decoder/Driver with Open-Collector Outputs |
| 中文描述： | BCD碼到7段解碼器/驅(qū)動(dòng)器，集電極開(kāi)路輸出 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大小： | 67K |
| 代理商： | 74LS47 |
www.fairchildsemi.com
4
D
M
74LS47
Absolute Maximum Ratings(Note 6)
Note 6: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Note 7: OFF-State at a–g.
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Note 8: All typicals are at VCC = 5V, TA = 25°C.
Note 9: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics
at VCC = +5.0V, TA = +25°C
Note 10: LT
= HIGH, A0–A3 = LOW
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
0
°C to +70°C
Storage Temperature Range
65°C to +150°C
Symbol
Parameter
Min
Nom
Max
Units
VCC
Supply Voltage
4.75
5
5.25
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
250
A
a
g @ 15V = V
OH (Note 7)
IOH
HIGH Level Output Current BI /RBO
50
A
IOL
LOW Level Output Current
24
mA
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 8)
VI
Input Clamp Voltage
VCC = Min, II = 18 mA
1.5
V
VOH
HIGH Level
VCC = Min, IOH = Max,
2.7
3.4
V
Output Voltage
VIL = Max, BI /RBO
IOFF
Output HIGH Current Segment Outputs
VCC = 5.5V, VO = 15V a g
250
A
VOL
LOW Level
VCC = Min, IOL = Max,
0.35
0.5
Output Voltage
VIH = Min, a g
IOL = 3.2 mA, BI /RBO
0.5
V
IOL = 12 mA, a –g
0.25
0.4
IOL = 1.6 mA, BI /RBO
0.4
II
Input Current @ Max
VCC = Max, VI = 7V
100
A
Input Voltage
VCC = Max, VI = 10V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
20
A
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
0.4
mA
IOS
Short Circuit
VCC = Max (Note 9),
mA
Output Current
IOS at BI/RBO
0.3
2.0
ICC
Supply Current
VCC = Max
13
mA
RL = 665
Symbol
Parameter
Conditions
CL = 15 pF
Units
Min
Max
tPLH
Propagation Delay
100
ns
tPHL
An to a –g
100
tPLH
Propagation Delay
100
ns
tPHL
RBI to a –g (Note 10)
100
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LS47 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74LS47DE4 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS |
| 74LS47PC | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| 74LS48 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:BCD to 7-Segment Decoder |
| 74LS48PC | 制造商:Texas Instruments 功能描述: |
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