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參數(shù)資料
| 型號： | DM74LS390 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | Dual 4-Bit Decade Counter(雙4位十進制計數(shù)器) |
| 中文描述： | 雙4位十進制計數(shù)器（雙4位十進制計數(shù)器） |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 58K |
| 代理商： | DM74LS390 |
3
www.fairchildsemi.com
D
Absolute Maximum Ratings
(Note 3)
Note 3:
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 4:
C
L
=
15 pF, R
L
=
2 k
, T
A
=
25
°
C and V
CC
=
5V.
Note 5:
C
L
=
50 pF, R
L
=
2 k
, T
A
=
25
°
C and V
CC
=
5V.
Note 6:
The symbol (
↓
) indicates the falling edge of the clear pulse is used for reference.
Note 7:
T
A
=
25
°
C and V
CC
=
5V.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 8:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 9:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 10:
I
CC
is measured with all outputs OPEN, both CLEAR inputs grounded following momentary connection to 4.5 and all other inputs grounded.
Supply Voltage
Input Voltage
Clear
A or B
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
5.5V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
Symbol
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
mA
mA
V
CC
V
IH
V
IL
I
OH
I
OL
f
CLK
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Clock Frequency (Note 4)
0.8
0.4
8
25
20
20
15
A to Q
A
B to Q
B
A to Q
A
B to Q
B
A
B
Clear HIGH
0
0
0
0
20
25
20
25
↓
0
MHz
f
CLK
Clock Frequency (Note 5)
MHz
t
W
Pulse Width (Note 4)
ns
t
REL
T
A
Clear Release Time (Note 6)(Note 7)
Free Air Operating Temperature
ns
°
C
70
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 8)
V
I
V
OH
Input Clamp Voltage
HIGH Level
Output Voltage
V
CC
=
Min, I
I
=
18 mA
V
CC
=
Min, I
OH
=
Max
V
IL
=
Max, V
IH
=
Min
V
CC
=
Min, I
OL
=
Max
V
IL
=
Max, V
IH
=
Min
I
OL
=
4 mA, V
CC
=
Min
V
CC
=
Max, V
I
=
7V
V
CC
=
Max
V
I
=
5.5V
V
CC
=
Max
V
I
=
2.7V
1.5
V
2.7
3.4
V
V
OL
LOW Level
Output Voltage
0.35
0.5
V
0.25
0.4
I
I
Input Current @ Max
Input Voltage
Clear
A
B
0.1
0.2
0.4
mA
I
IH
HIGH Level
Input Current
Clear
A
B
20
40
80
0.4
1.6
2.4
100
26
μ
A
I
IL
LOW Level
Input Current
V
CC
=
Max, V
I
=
0.4V
Clear
A
B
mA
I
OS
I
CC
Short Circuit Output Current
Supply Current
V
CC
=
Max (Note 9)
V
CC
=
Max (Note 10)
20
mA
mA
15
相關PDF資料 |
PDF描述 |
|---|---|
| DM74LS390N | Dual 4-Bit Decade Counter |
| DM74LS390MX | Asynchronous Up Counter |
| DM74LS390M | Dual 4-Bit Decade Counter |
| DM74LS393 | Dual 4-Bit Binary Counter |
| DM74LS393M | Dual 4-Bit Binary Counter |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DM74LS390 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74LS390J | 制造商:Texas Instruments 功能描述: |
| DM74LS390M | 功能描述:計數(shù)器 IC Dl 4-Bit Dec Counter RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| DM74LS390MX | 功能描述:計數(shù)器 IC Dl 4-Bit Dec Counter RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| DM74LS390N | 功能描述:計數(shù)器 IC Dl 4-Bit Dec Counter RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
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