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HD74HC27 Datasheet, PDF (3/7 Pages) Hitachi Semiconductor – Triple 3-input NOR Gates | |||
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HD74HC27
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = â40 to
+85°C
Item
Symbol
Propagation delay tPLH
time
VCC (V)
2.0
4.5
Min Typ Max Min
â â 90 â
â 10 18 â
Max Unit
115 ns
23
6.0
â â 15 â 20
t PHL
2.0
â â 90 â 115 ns
4.5
â 10 18 â 23
6.0
â â 15 â 20
Output rise time tTLH
2.0
â â 75 â 95 ns
4.5
â 5 15 â 19
6.0
â â 13 â 16
Output fall time tTHL
2.0
â â 75 â 95 ns
4.5
â 5 15 â 19
6.0
â â 13 â 16
Input capacitance Cin
â
â 5 10 â 10 pF
Test Conditions
3
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