74LVC245A Просмотр технического описания (PDF) - Diodes Incorporated.
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74LVC245A Datasheet PDF : 10 Pages
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74LVC245A
Switching Characteristics
Symbol
Parameter
Test
Conditions
VCC
TA = +25°C
TA = -40°C to
+85°C
TA = -40°C to
+125°C
Unit
Min
Ty
Max
Min
Max
Min
Max
1.8V ± 0.15V
1
6.0
12.2
1
12.7
1
16.9
tPD
Propagation
Delay AN to BN
Figure 1
or BN to AN
2.5V ± 0.2V
2.7V
3.3V ± 0.3
1
3.9
8.1
1
8.5
1
9.1
1
4.2
8.7
1
9.6
1
9.9
1.5
3.8
8.1
1.5
8.7
1.5
9.2
ns
Enable Time
1.8V ± 0.15V
1
7
14.8
1
15.3
1
22.5
tEN
OE to AN
Figure 1
2.5V ± 0.2V
2.7V
1
4.5
10
1
10.5
1
12.4
1
5.4
9.3
1
9.5
1
12.0
ns
or OE to BN
3.3V ± 0.3
1.5
4.4
8.3
1.5
8.5
1.5
11.0
Disable Time
1.8V ± 0.15V
1
7.8
16.5
1
17
1
14.2
tDIS
OE to AN
Figure 1
2.5V ± 0.2V
2.7V
1
4
9
1
9.5
1
8.2
1
4.4
8.3
1
8.5
1
10.0
ns
or OE to BN
3.3V ± 0.3
1.7
4.1
7.3
1.7
7.5
1.7
9.0
tsk(0)
Output Skew
Time
3.3V ± 0.3
—
—
1.0
—
—
—
1.5
ns
Operating Characteristics
TA = +25°C
Symbol
Parameter
Test Conditions
VCC
Typ
Unit
1.8V ± 0.15V
9.9
Cpd
Power dissipation
F = 10MHz
capacitance per gate Outputs Enabled
2.5V ± 0.2V
10.2
pF
3.3V ± 0.3V
10.6
Package Characteristics
Symbol
θJA
θJC
θJA
θJC
Parameter
Thermal Resistance
Junction-to-Ambient
Thermal Resistance
Junction-to-Case
Thermal Resistance
Junction-to-Ambient
Thermal Resistance
Junction-to-Case
Package
TSSOP-20
TSSOP-20
V-QFN4525-20
V-QFN4525-20
Test Conditions
Min
Typ.
Max
(Note 9)
—
74
—
(Note 9)
—
15
—
(Note 9)
—
67
—
(Note 9)
—
20
—
Unit
°C/W
°C/W
°C/W
°C/W
Note:
9. Test conditions for TSSOP-20 and V-QFN4525-20: Devices mounted on 4 layer FR-4 substrate PC board, 2oz copper, with minimum recommended
pad layout per JESD 51-7.
74LVC245A
Document number: DS35890 Rev. 1 - 2
5 of 10
www.diodes.com
August 2014
© Diodes Incorporated
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