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參數(shù)資料
| 型號： | DM74LS191M |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | Synchronous 4-Bit Up/Down Counter with Mode Control |
| 中文描述： | 同步4位加/減計數(shù)器的模式控制 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 72K |
| 代理商： | DM74LS191M |
www.fairchildsemi.com
4
D
Absolute Maximum Ratings
(Note 1)
Note 1:
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 2:
T
A
=
25
°
C and V
CC
=
5V.
DC Electrical Characteristics
Note 3:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 4:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 5:
I
CC
is measured with all inputs grounded and all outputs open.
Storage Temperature Range
Input Voltage
Operating Free Air Temp. Range
Supply Voltage
65
°
C to
+
150
°
C
7V
0
°
C to
+
70
°
C
7V
Symbol
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
mA
mA
MHz
ns
V
CC
V
IH
V
IL
I
OH
I
OL
f
CLK
t
W
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Clock Frequency (Note 2)
Pulse Width
(Note 2)
Data Setup Time (Note 2)
Data Hold Time (Note 2)
Enable Time to Clock (Note 2)
Free Air Operating Temperature
0.8
0.4
8
20
0
Clock
Load
25
35
20
0
30
0
t
SU
t
H
t
EN
T
A
ns
ns
ns
°
C
70
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 3)
V
I
V
OH
Input Clamp Voltage
HIGH
Level Output
Voltage
LOW
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
=
2.7V
V
CC
=
Max
V
I
=
0.4V
V
CC
=
Max
(Note 4)
V
CC
=
Max (Note 5)
1.5
V
Mil
Com
2.5
2.7
3.4
3.4
V
V
OL
0.25
0.35
0.25
0.4
0.5
0.4
V
I
I
Input Current @ Max
Input Voltage
HIGH
Level Input
Current
LOW
Level Input
Current
Enable
Others
Enable
0.3
0.1
60
mA
I
IH
μ
A
Others
Enable
Others
20
I
IL
1.08
0.4
100
100
35
mA
I
OS
Short Circuit
Output Current
Supply Current
Mil
Com
20
20
mA
I
CC
20
mA
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相關代理商/技術參數(shù) |
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|---|---|
| DM74LS191MX | 功能描述:計數(shù)器 IC Syn 4-Bit 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 |
| DM74LS191N | 功能描述:計數(shù)器 IC Syn 4-Bit 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 |
| DM74LS193 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74LS193M | 功能描述:計數(shù)器 IC Syn 4-Bit 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 |
| DM74LS193MX | 功能描述:計數(shù)器 IC Syn 4-Bit 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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