M74HC253 データシートの表示（PDF） - STMicroelectronics
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M74HC253 Datasheet PDF : 11 Pages
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M74HC253
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Value
Symbol
Parameter
VCC
(V)
tTLH tTHL Output Transition 2.0
Time
4.5
6.0
tPLH tPHL Propagation Delay 2.0
Time (Cn - Y)
4.5
6.0
tPLH tPHL Propagation Delay 2.0
Time (A, B - Y)
4.5
6.0
tPZL tPZH High Impedance
2.0
Output Enable
4.5
Time (G - Y)
6.0
tPLZ tPHZ High Impedance
2.0
Output Disable
4.5
Time (G - Y)
6.0
R1 = 1KΩ
R1 = 1KΩ
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
30 75
95
110
8 15
19
22 ns
7 13
16
19
48 115
145
175
15 23
29
35 ns
12 20
25
30
68 150
190
225
20 30
38
45 ns
16 26
32
38
36 100
125
150
12 20
25
30 ns
9 17
21
26
22 100
125
150
11 20
25
30 ns
9 17
21
26
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
CIN Input Capacitance 5.0
5 10
10
10 pF
CPD Power Dissipation
Capacitance (note 5.0
58
pF
1)
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4(per circuit)
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