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HC646 Datasheet(PDF) 6 Page - STMicroelectronics

Part # HC646
Description  HC648 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE, INV. HC646 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE
PDF  12 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HC646 Datasheet(HTML) 6 Page - STMicroelectronics

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DC SPECIFICATIONS
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
Typ.
Max.
Min.
Max.
VIH
High Level Input Voltage
2.0
1.5
1.5
V
4.5
3.15
3.15
6.0
4.2
4.2
VIL
Low Level Input
Voltage
2.0
0.5
0.5
V
4.5
1.35
1.35
6.0
1.8
1.8
VOH
High Level Output Voltage
2.0
VI =
VIH
or
VIL
IO=-20
µA
1.9
2.0
1.9
V
4.5
4.4
4.5
4.4
6.0
5.9
6.0
5.9
4.5
IO=-6.0 mA
4.18
4.31
4.13
6.0
IO=-7.8 mA
5.68
5.8
5.63
VOL
Low Level Output Voltage
2.0
VI =
VIH
or
VIL
IO=20
µA
0.0
0.1
0.1
V
4.5
0.0
0.1
0.1
6.0
0.0
0.1
0.1
4.5
IO= 6.0 mA
0.17
0.26
0.37
6.0
IO= 7.8 mA
0.18
0.26
0.37
II
Input Leakage Current
6.0
VI =VCC or GND
±0.1
±1
µA
IOZ
3 State Output Off State Current
6.0
VI =VIH or VIL
VO =VCC or GND
±0.5
±5.0
µA
ICC
Quiescent Supply Current
6.0
VI =VCC or GND
4
40
µA
AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
CL
(pF)
TA =25
oC
-40 to 85
oC
Min.
Typ.
Max.
Min.
Max.
tTLH
tTHL
Output Transition Time
2.0
50
25
60
75
ns
4.5
7
12
15
6.0
6
10
13
tPLH
tPHL
Propagation Delay Time
(BUS - BUS)
2.0
50
74
150
190
ns
4.5
21
30
38
6.0
18
26
32
2.0
150
91
190
240
ns
4.5
26
38
48
6.0
22
32
41
tPLH
tPHL
Propagation Delay Time
(CLOCK - BUS)
2.0
50
98
210
265
ns
4.5
28
42
53
6.0
24
36
45
2.0
150
116
250
315
ns
4.5
33
50
63
6.0
28
43
54
M74HC646/648
6/12



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