M54HC620 查看數據表（PDF） - STMicroelectronics
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M54HC620 Datasheet PDF : 11 Pages
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M54/M74HC620/623
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
18
ns
6.0
6
10
13
15
tPLH Propagation
tPHL Delay Time
(for HC620)
2.0
4.5 50
6.0
41 100
125
150
12 20
25
30
ns
10 17
21
26
2.0
4.5 150
55 130
165
195
16 26
33
39
ns
6.0
14 22
28
33
tPLH Propagation
tPHL Delay Time
(for HC623)
2.0
4.5 50
6.0
38 85
12 17
10 14
105
130
21
26
ns
18
22
2.0
4.5 150
51 130
165
195
16 26
33
39
ns
6.0
14 22
28
33
tPZL Output Enable
2.0
57 150
190
225
tPZH Time
4.5 50 RL = 1 KΩ
19 30
38
45
ns
6.0
16 26
32
38
2.0
69 180
225
270
4.5 150 RL = 1 KΩ
23 36
45
54
ns
0
20 31
38
46
tPLZ Output Disable
2.0
43 125
155
190
tPHZ Time
4.5 50 RL = 1 KΩ
18 25
31
38
ns
6.0
15 21
26
32
CIN Input Capacitance
5
10
10
10 pF
CPD (*) Power Dissipation
for HC620
32
Capacitance
for HC623
34
pF
CPD isdefined 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
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