HD74HC678 Datasheet, PDF (6/8 Pages) Hitachi Semiconductor – 16-bit Address Comparator

HD74HC678
AC Characteristics (C_L = 50 pF, Input t_r = t_f = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Symbol
Propagation delay t_PLH
time
t _PHL
V_CC (V)
2.0
4.5
6.0
Min Typ Max Min
— — 330 —
— 30 66 —
— — 56 —
Max Unit
410 ns
82
70
t _PLH
2.0
— — 210 — 265 ns
t _PHL
4.5
— 21 42 — 53
6.0
— — 36 — 45
t _PLH
2.0
— — 150 — 190 ns
t _PHL
4.5
— 13 30 — 38
6.0
— — 26 — 33
Setup time
t _su
2.0
100 — — 125 — ns
4.5
20 12 — 25 —
6.0
17 — — 21 —
Output rise/fall
t _TLH
time
t _THL
2.0
— — 75 — 95 ns
4.5
— — 15 — 19
6.0
— — 13 — 16
Input capacitance Cin
—
— 5 10 — 10 pF
Test Conditions
P to Y
A to Y
C to Y
A to C
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