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参数资料
| 型号： | MM74C244 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | Non-Inverting Octal Buffers and Line Drivers with TRI-STATE Outputs(三态输出的同相八路缓冲器和线驱动器) |
| 中文描述： | 非反向八路缓冲器和线路驱动器，三态输出（三态输出的同相八路缓冲器和线驱动器） |
| 文件页数： | 3/6页 |
| 文件大小： | 142K |
| 代理商： | MM74C244 |
AC Electrical Characteristics
*
T
A
e
25
§
C, C
L
e
50 pF, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
PD(1)
, t
PD(0)
Propagation Delay
(Data In to Out)
MM54C240/MM74C240
V
CC
e
5V, C
L
e
50 pF
V
CC
e
10V, C
L
e
50 pF
V
CC
e
5V, C
L
e
150 pF
V
CC
e
10V, C
L
e
150 pF
60
40
80
60
90
70
110
90
ns
ns
ns
ns
MM54C244/MM74C244
V
CC
e
5V, C
L
e
50 pF
V
CC
e
10V, C
L
e
50 pF
V
CC
e
5V, C
L
e
150 pF
V
CC
e
10V, C
L
e
150 pF
45
25
60
40
70
50
90
70
ns
ns
ns
ns
t
1H
, t
0H
Propagation Delay Output
Disable to High Impedance
State (from a Logic Level)
R
L
e
1k, C
L
e
50 pF
V
CC
e
5V
V
CC
e
10V
45
35
80
60
ns
ns
t
H1
, t
H0
Propagation Delay Output
Disable to Logic Level
(from High Impedance State)
R
L
e
1k, C
L
e
50 pF
V
CC
e
5V
V
CC
e
10V
50
30
90
60
ns
ns
t
T(HL)
, t
T(LH)
Transition Time
V
CC
e
5V, C
L
e
50 pF
V
CC
e
10V, C
L
e
50 pF
V
CC
e
5V, C
L
e
150 pF
V
CC
e
10V, C
L
e
150 pF
45
30
75
50
80
60
140
100
ns
ns
ns
ns
C
PD
Power Dissipation
Capacitance
(Output Enabled per Buffer)
MM54C240/MM74C240
MM54C244/MM74C244
(Note 3)
100
100
pF
pF
(Output Disabled per Buffer)
MM54C240/MM74C240
MM54C244/MM74C244
10
0
pF
pF
C
IN
Input Capacitance
(Any Input)
V
IN
e
0V, f
e
1 MHz, T
A
e
25
§
C
10
pF
C
O
Output Capacitance
(Output Disabled)
V
IN
e
0V, f
e
1 MHz, T
A
e
25
§
C
10
pF
*
AC Parameters are guaranteed by DC correlated testing.
Note 1:
‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. Except for ‘‘Operating Range’’ they are not
meant to imply that the devices should be operated at these limits. The table of ‘‘Electrical Characteristics’’ provides conditions for actual device operation.
Note 2:
Capacitance is guaranteed by periodic testing.
Note 3:
C
PD
determines the no load AC power consumption of any CMOS device. For complete explanation see 54C/74C Family Characteristics Application Note,
AN-90.
Typical Application
TL/F/5905–5
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74C244J | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Octal Buffers and Line Drivers with TRI-STATE Outputs |
| MM74C244N | 功能描述:缓冲器和线路驱动器 Oct Buf and Line Drv RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| MM74C244N | 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74C CMOS 74C244 DIP20 15V |
| MM74C244N_Q | 功能描述:缓冲器和线路驱动器 Oct Buf and Line Drv RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| MM74C244WM | 功能描述:缓冲器和线路驱动器 Oct Buf and Line Drv RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
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