HD74HC298 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – Quad. 2-input Multiplexers (with storage)

HD74HC298
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
— — 170 —
— 19 34 —
— — 29 —
Max Unit
215 ns
43
37
Pulse width
t_w
2.0
80 — — 100 — ns
4.5
16 10 — 20 —
6.0
14 — — 17 —
Setup time
t _su
2.0
150 — — 190 — ns
4.5
30 16 — 38 —
6.0
26 — — 33 —
Hold time
t_h
2.0
5 —— 5
— ns
4.5
5 –5 — 5
—
6.0
5 —— 5
—
Output rise/fall
t _TLH
time
t _THL
2.0
— — 75 — 95 ns
4.5
— 5 15 — 19
6.0
— — 13 — 16
Input capacitance Cin
—
— 5 10 — 10 pF
Test Conditions
Clock to Q
Clock
4