參數(shù)資料
型號: DM74S244
廠商: Fairchild Semiconductor Corporation
英文描述: Octal 3-STATE Buffer/Line Driver/Line Receiver(八3態(tài)緩沖器/線驅(qū)動(dòng)器/線接收器)
中文描述: 八路三態(tài)緩沖器/線路驅(qū)動(dòng)器/線接收器(八三態(tài)緩沖器/線驅(qū)動(dòng)器/線接收器)
文件頁數(shù): 2/4頁
文件大?。?/td> 46K
代理商: DM74S244
www.fairchildsemi.com
2
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
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
Note 2:
All typical values are at V
CC
=
5V, T
A
=
25
°
C.
Note 3:
Not more than one output should be shorted at a time and duration should not exceed one second.
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
5.5V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
Symbol
Parameter
Min
4.75
2
Typ
5
Max
5.25
Units
V
V
V
mA
mA
°
C
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0.8
15
64
70
0
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
V
I
H
ys
Input Clamp Voltage
Hysteresis (V
T
+
V
T
)
(Data Inputs Only)
V
CC
=
Min, I
I
=
18 mA
V
CC
=
Min
1.2
V
V
0.2
0.4
V
OH
HIGH Level
Output Voltage
V
CC
=
4.75V, V
IH
=
2V
V
IL
=
0.8V, I
OH
=
1 mA
V
CC
=
Min, V
IH
=
2V
V
IL
=
0.8V, I
OH
=
3 mA
V
CC
=
Min, V
IH
=
2V
V
IL
=
0.5V, I
OH
=
Max
V
CC
=
Min
V
IL
=
0.8V, V
IH
=
2V
V
CC
=
Max
V
IL
=
0.8V
V
IH
=
2V
2.7
V
2.4
3.4
2
V
OL
LOW Level
Output Voltage
Off-State Output Current,
I
OL
=
Max
0.55
V
I
OZH
V
O
=
2.4V
50
μ
A
HIGH Level Voltage Applied
Off-State Output Current,
LOW Level Voltage Applied
I
OZL
V
O
=
0.5V
50
μ
A
I
I
Input Current at Maximum
Input Voltage
HIGH Level Input Current
V
CC
=
Max
V
I
=
5.5V
1
mA
I
IH
I
IL
V
CC
=
Max
V
CC
=
Max
V
I
=
2.7V
V
I
=
0.5V
50
μ
A
μ
A
mA
mA
LOW Level Input Current
Any A
Any G
400
2
225
135
160
150
I
OS
I
CC
Short Circuit Output Current
V
CC
=
Max (Note 3)
Outputs HIGH
50
Supply
Current
DM74S240
DM74S241, DM74244
DM74S240
80
95
100
mA
Outputs LOW
DM74S241, DM74244
DM74S240
DM74S241, DM74S244
120
100
120
180
150
180
Outputs Disabled
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DM74S244 WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
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DM74S251J 制造商:Texas Instruments 功能描述:
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