HD74LV4040A Datasheet, PDF (9/17 Pages) Hitachi Semiconductor – 12-stage Binary Counter

HD74LV4040A
Switching Characteristics (cont)
• V_CC = 3.3 ± 0.3 V
Ta = 25°C
Item
Symbol Min
Maximum
f_max
75
clock
55
frequency
Propagation t_PLH/t_PHL —
delay time
—
t_PHL
—
—
Propagation ∆t_pd
—
delay time
skew
Setup time t_SU
5.0
Typ
140
80
7.5
10.0
8.3
10.8
2.4
—
Pulse width t_w
5.0 —
5.0 —
Max
—
—
11.9
15.4
12.8
16.3
4.4
—
—
—
Ta = –40 to 85°C
Min
Max
70
—
50
—
Unit
MHz
1.0
14.0
ns
1.0
17.5
1.0
15.0
1.0
18.5
—
5.0
ns
5.0
—
ns
5.0
—
ns
5.0
—
Test Conditions
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
C_L = 50 pF
FROM TO
(Input) (Output)
CLK
Q₁
CLR
Q_n
Q_n + 1
CLR inactive
before CLK ↓
CLK high or low
CLR high
9