74VHC240(2007) Просмотр технического описания (PDF) - Fairchild Semiconductor
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74VHC240 Datasheet PDF : 9 Pages
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AC Electrical Characteristics
Symbol Parameter
tPLH, tPHL Propagation Delay
Time
tPZL, tPZH 3-STATE Output
Enable Time
tPLZ, tPHZ 3-STATE Output
Disable Time
tOSLH,
tOSHL
CIN
COUT
CPD
Output to Output
Skew
Input Capacitance
Output Capacitance
Power Dissipation
Capacitance
VCC (V)
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
Conditions
CL = 15pF
CL = 50pF
CL = 15pF
CL = 50pF
RL = 1kΩ CL = 15pF
CL = 50pF
CL = 15pF
CL = 50pF
RL = 1kΩ CL = 50pF
CL = 50pF
(3)
CL = 50pF
CL = 50pF
VCC = Open
VCC = 5.0V
(4)
TA = 25°C
Min. Typ. Max.
5.3 7.5
7.8 11.0
3.6 5.5
5.1 7.5
6.6 10.6
9.1 14.1
4.7 7.3
6.2 9.3
10.3 14.0
6.7
9.2
1.5
1.0
4
10
6
17
TA = –40°C
to +85°C
Min. Max. Units
1.0 9.0 ns
1.0 12.5
1.0 6.5
1.0 8.5
1.0 12.5 ns
1.0 16.0
1.0 8.5
1.0 10.5
1.0 16.0 ns
1.0 10.5
1.5 ns
1.0
10 pF
pF
pF
Notes:
3. Parameter guaranteed by design. tOSLH = |tPLHmax – tPLHmin|; tOSHL = |tPHLmax – tPHLmin|
4. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load. Average operating current can be obtained by the equation:
ICC (opr.) = CPD • VCC • fIN + ICC / 8 (per bit).
©1992 Fairchild Semiconductor Corporation
74VHC240 Rev. 1.3
5
www.fairchildsemi.com
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