參數(shù)資料
型號： DM74LS251MX
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： 8-Input Digital Multiplexer
中文描述： LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16
封裝： 0.150 INCH, MS-012, SOIC-16
文件頁數(shù)： 3/6頁
文件大?。?/td> 58K
代理商： DM74LS251MX
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” table 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.
Note 4:
I
CC1
is measured with the outputs open, STROBE grounded, and all other inputs at 4.5V.
Note 5:
I
CC2
is measured with the outputs open and all inputs at 4.5V.
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
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0.8
2.6
24
70
0
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
V
I
V
OH
Input Clamp Voltage
HIGH 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
=
12 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, V
O
=
2.7V
V
IH
=
Min, V
IL
=
Max
V
CC
=
Max, V
O
=
0.4V
V
IH
=
Min, V
IL
=
Max
V
CC
=
Max (Note 3)
V
CC
=
Max (Note 4)
V
CC
=
Max (Note 5)
1.5
V
2.4
3.1
V
V
OL
LOW Level
Output Voltage
0.35
0.5
V
0.25
0.4
I
I
I
IH
I
IL
I
OZH
Input Current @ Max Input Voltage
HIGH Level Input Current
0.1
20
0.4
mA
μ
A
mA
LOW Level Input Current
Off-State Output Current with
HIGH Level Output Voltage Applied
20
μ
A
I
OZL
Off-State Output Current with
LOW Level Output Voltage Applied
Short Circuit Output Current
20
μ
A
I
OS
I
CC1
I
CC2
20
100
10
12
mA
Supply Current
Supply Current
6.1
7.1
mA
mA
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DM74LS253MX 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dl 3-STATE Dt Sl/Mul 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
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