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Número de pieza
componentes Descripción
M74HC251B1R(1993) Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Lista de partido
M74HC251B1R
(Rev.:1993)
8 BIT SIPO SHIFT REGISTER
STMicroelectronics
M74HC251B1R Datasheet PDF : 11 Pages
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M54/M74HC251
DC SPECIFICATIONS
Symbol
Parameter
V
IH
High Level Input
Voltage
V
IL
Low Level Input
Voltage
V
OH
High Level
Output Voltage
V
OL
Low Level Output
Voltage
I
I
Input Leakage
Current
I
OZ
3 State Output
Off State Current
I
CC
Quiescent Supply
Current
Test Conditions
V
CC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
V
I
=
V
IH
I
O
=-20
µ
A
6.0 or
4.5
V
IL
I
O
=-4.0 mA
6.0
I
O
=-5.2 mA
2.0
4.5
V
I
=
V
IH
I
O
= 20
µ
A
6.0 or
4.5
V
IL
I
O
= 4.0 mA
6.0
I
O
= 5.2 mA
6.0
V
I
= V
CC
or GND
T
A
= 25
o
C
54HC and 74HC
Min. Typ. Max.
1.5
3.15
4.2
0.5
1.35
1.8
1.9 2.0
4.4 4.5
5.9 6.0
4.18 4.31
5.68 5.8
0.0 0.1
0.0 0.1
0.0 0.1
0.17 0.26
0.18 0.26
±
0.1
Value
-40 to 85
o
C
74HC
Min. Max.
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
4.13
5.63
0.1
0.1
0.1
0.33
0.33
±
1
-55 to 125
o
C
54HC
Min. Max.
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
4.10
5.60
0.1
0.1
0.1
0.40
0.40
±
1
6.0 V
I
= V
IH
or V
IL
V
O
= V
CC
or GND
6.0 V
I
= V
CC
or GND
±
0.5
±
5.0
±
10
4
40
80
Unit
V
V
V
V
µ
A
µ
A
µ
A
4/11
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