HD74LV174A Datasheet, PDF (6/15 Pages) Hitachi Semiconductor – Hex D-type Flip-Flops with Clear

HD74LV174A
Switching Characteristics
• V_CC = 2.5 ± 0.2 V
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol Min Typ Max Min
Maxi-
mum
clock
fre-
quency
fmax
55
115 — 50
45
90 — 40
Propa-
gation
delay
time
t_PLH / t_PHL
—
8.4 17.1 1.0
—
10.8 20.6 1.0
t_PHL
—
6.3 17.3 1.0
—
8.2 21.9 1.0
Setup
t_SU
time
8.5 — — 9.5
4.0 — — 4.0
Max
—
—
19.0
23.0
19.5
23.5
—
—
Unit
MHz
Test Conditions
C_L = 15 pF
C_L = 50 pF
ns
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
ns
Hold
t_h
time
Pulse
t_W
width
–0.5 — — 0.0
—
ns
6.0 — — 6.5
—
ns
7.0 — — 7.0
—
FROM
(Input)
TO
(Output)
CLK
Q
CLR
Data before CLK↑
CLR inactive before
CLK↑
Data after CLK↑
CLR L
CLK H or L
6