HD74LV74A Datasheet, PDF (7/16 Pages) Hitachi Semiconductor – Dual D-type Flip Flops with Preset and Clear

HD74LV74A
Switching Characteristics
• V_CC = 2.5 ± 0.2 V
Item
Maximum
clock
frequency
Symbol
t_max
Propagation t_PLH
delay time
t_PHL
Setup time
t_su
Hold time
t_h
Pulse width t_w
Ta = 25°C
Ta = –40 to 85°C
Min Typ Max Min Max
50 100 — 40
—
Unit
MHz
30 70 — 25
—
— 9.8 14.8 1.0
17.0
ns
— 11.1 16.4 1.0
19.0
— 13.0 17.4 1.0
20.0
— 14.2 20.0 1.0
23.0
8.0 — — 9.0
—
ns
7.0 — — 7.0
—
0.5 — — 0.5
—
ns
8.0 — — 9.0
—
ns
8.0 — — 9.0
—
Test Conditions
C_L = 15 pF
FROM
(Input)
TO
(Output)
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
PRE/CLR Q or Q
CLK
PRE/CLR Q or Q
CLK
Data
PRE or CLR inactive
PRE or CLR “L”
CLK “H” or “L”
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