HD74HC273 Datasheet, PDF (7/10 Pages) Hitachi Semiconductor – Octal D-type Flip-Flops (with Clear)

HD74HC273
AC Characteristics (C_L = 50 pF, Input t_r = t_f = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Maximum clock
frequency
Symbol
f _max
V_CC (V)
2.0
4.5
Min Typ Max Min
——6 —
— — 30 —
Max Unit Test Conditions
5 MHz
24
6.0
— — 35 — 28
Propagation delay t_PHL
time
2.0
— — 145 — 180 ns Clock to Q
4.5
— 18 29 — 36
6.0
— — 25 — 31
t _PLH
2.0
— — 145 — 180 ns
4.5
— 18 29 — 36
6.0
— — 25 — 31
t _PHL
2.0
— — 145 — 180 ns Clear to Q
4.5
— 15 29 — 36
6.0
— — 25 — 31
Setup time
t _su
2.0
100 — — 125 — ns Data to clock
4.5
20 2 — 25 —
6.0
17 — — 21 —
Hold time
t_h
2.0
5 —— 5
— ns Clock to data
4.5
5 0 —5
—
6.0
5 —— 5
—
Removal time
t _rem
2.0
100 — — 125 — ns Clear to clock
4.5
20 –1 — 25 —
6.0
17 — — 21 —
Pulse width
t_w
2.0
80 — — 100 — ns Clock, clear
4.5
16 8 — 20 —
6.0
14 — — 17 —
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
5