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參數(shù)資料
| 型號(hào)： | DM74LS298 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Quad 2-Port Register Multiplexer with Storage |
| 中文描述： | 四2端口復(fù)用器注冊(cè)與存儲(chǔ) |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大?。?/td> | 43K |
| 代理商： | DM74LS298 |
3
www.fairchildsemi.com
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 typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 3:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics
at V
CC
=
+
5V and T
A
=
+
25
°
C
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
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
°
C
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
t
S
(H)
t
S
(L)
t
H
(H)
t
H
(L)
t
S
(H)
t
S
(L)
t
H
(H)
t
H
(L)
t
W
(H)
t
W
(L)
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
Setup Time HIGH or LOW
S to CP
Hold Time HIGH or LOW
S to CP
Setup Time HIGH or LOW
I0
x
or I1
x
to CP
Hold Time HIGH or LOW
I0
x
or I1
x
to CP
CP Pulse Width HIGH or LOW
0.8
0.4
8
70
0
25
25
0
0
15
15
5.0
5.0
ns
ns
ns
ns
20
20
ns
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
V
I
V
OH
V
OL
Input Clamp Voltage
HIGH Level Output Voltage
V
CC
=
Min, I
I
=
18 mA
V
CC
=
Min, I
OH
=
Max, V
IL
=
Max
V
CC
=
Min, I
OL
=
Max, V
IH
=
Min
I
OL
=
4 mA, V
CC
=
Min
V
CC
=
Max, V
I
=
7V, V
I
=
10V
V
CC
=
Max, V
I
=
2.7V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max (Note 3)
V
CC
=
Max, I0
n
, I1
n
,
S
=
GND, CP
=
1.5
V
V
2.7
3.4
LOW Level Output Voltage
0.35
0.25
0.5
0.4
0.1
V
I
I
I
IH
I
IL
I
OS
I
CC
Input Current @ Max Input Voltage
mA
μ
A
mA
mA
HIGH Level Input Current
LOW Level Input Current
Short Circuit Output Current
20
0.4
100
20
Supply Current
21
mA
Symbol
Parameter
R
L
=
2 k
, C
L
=
15 pF
Min
Units
Max
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
CP to Q
n
Propagation Delay Time
HIGH-to-LOW Level Output
CP to Q
n
25
ns
t
PHL
25
ns
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74LS298N | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Qd 2-Port Register RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74LS299N | 功能描述:計(jì)數(shù)器移位寄存器 8-Input Sft/Stor Reg RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| DM74LS299WM | 功能描述:計(jì)數(shù)器移位寄存器 8-Input Sft/Stor Reg RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| DM74LS299WMX | 功能描述:計(jì)數(shù)器移位寄存器 8-Input Sft/Stor Reg RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| DM74LS30 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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