M74HC258B1R 데이터 시트보기 (PDF) - STMicroelectronics
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M74HC258B1R
STMicroelectronics
M74HC258B1R Datasheet PDF : 12 Pages
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M54/M74HC257/258
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC CL
(V) (pF)
TA = 25 oC
54HC and 74HC
Value
-40 to 85 oC -55 to 125 oC Unit
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
tTLH Output Transition 2.0
tTHL Time
4.5 50
25 60
75
90
7
12
15
19
ns
6.0
6
10
13
15
tPLH Propagation
tPHL Delay Time
(A, B - Y)
2.0
4.5 50
6.0
45 100
125
150
13 20
25
30
ns
11 17
21
26
2.0
4.5 150
62 140
175
210
18 28
35
42
ns
6.0
15 24
30
36
tPLH Propagation
tPHL Delay Time
(SELECT - Y)
2.0
4.5 50
6.0
45 100
125
150
13 20
25
30
ns
11 17
21
26
2.0
4.5 150
62 140
175
210
18 28
35
42
ns
6.0
15 24
30
36
tPZL Output Enable
2.0
40 110
140
165
tPZH Time
4.5 50 RL = 1 KΩ
12 22
28
33
ns
6.0
10 19
24
28
2.0
57 150
190
225
4.5 150 RL = 1 KΩ
17 30
38
45
ns
6.0
14 26
32
38
tPLZ Output Disable
2.0
28 140
175
210
tPHZ Time
4.5 50 RL = 1 KΩ
14 28
35
42
ns
6.0
13 24
30
36
CIN
COUT
Input Capacitance
Output
Capacitance
5
10
10
10 pF
10
pF
CPD (*) Power Dissipation
47
Capacitance
pF
(*) 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 operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/4 (per Channel)
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