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M54HC620 Datasheet(PDF) 5 Page - STMicroelectronics

Part No. M54HC620
Description  OCTAL BUS TRANSCEIVER HC620 3 STATE INVERTING HC623 3 STATE NON INVERTING
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M54HC620 Datasheet(HTML) 5 Page - STMicroelectronics

 
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AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
CL
(pF)
TA =25
oC
54HC and 74HC
-40 to 85
oC
74HC
-55 to 125
oC
54HC
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH
tTHL
Output Transition
Time
2.0
50
25
60
75
90
ns
4.5
7
121518
6.0
6
101315
tPLH
tPHL
Propagation
Delay Time
(for HC620)
2.0
50
41
100
125
150
ns
4.5
12
20
25
30
6.0
10
17
21
26
2.0
150
55
130
165
195
ns
4.5
16
26
33
39
6.0
14
22
28
33
tPLH
tPHL
Propagation
Delay Time
(for HC623)
2.0
50
38
85
105
130
ns
4.5
12
17
21
26
6.0
10
14
18
22
2.0
150
51
130
165
195
ns
4.5
16
26
33
39
6.0
14
22
28
33
tPZL
tPZH
Output Enable
Time
2.0
50
RL =1 K
57
150
190
225
ns
4.5
19
30
38
45
6.0
16
26
32
38
2.0
150
RL =1 K
69
180
225
270
ns
4.5
23
36
45
54
0
20
313846
tPLZ
tPHZ
Output Disable
Time
2.0
50
RL =1 K
43
125
155
190
ns
4.5
18
25
31
38
6.0
15
21
26
32
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
for HC620
for HC623
32
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
M54/M74HC620/623
5/11


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