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參數資料
| 型號： | MM54C244N |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal Buffers and Line Drivers with TRI-STATE Outputs |
| 中文描述： | CMOS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數： | 3/6頁 |
| 文件大小： | 142K |
| 代理商： | MM54C244N |
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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PDF描述 |
|---|---|
| MM74C240 | Inverting Octal Buffers and Line Drivers with TRI-STATE Outputs(三態輸出的反相八路緩沖器和線驅動器) |
| MM74C244 | Non-Inverting Octal Buffers and Line Drivers with TRI-STATE Outputs(三態輸出的同相八路緩沖器和線驅動器) |
| MM54C32 | Quad 2-Input OR Gate |
| MM54C32J | Quad 2-Input OR Gate |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MM54C30 WAF | 制造商:Texas Instruments 功能描述: |
| MM54C30J/883 | 制造商:Texas Instruments 功能描述: |
| MM54C30J/B | 制造商:Rochester Electronics LLC 功能描述: |
| MM54C30W/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MM54C32 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Quad 2-Input OR Gate |
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