HD74LV393A Datasheet, PDF (7/15 Pages) Hitachi Semiconductor – Dual 4-bit Binary Counters

HD74LV393A
Switching Characteristics
• V_CC = 2.5 ± 0.2 V
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol Min Typ Max Min
Maximum
clock
frequency
fmax
50 90 — 40
30 60 — 25
Propa-
gation
delay time
t_PLH/./t_PHL —
11.8 17.7 1.0
— 15.1 21.3 1.0
— 13.4 20.3 1.0
— 16.7 23.9 1.0
— 14.9 22.5 1.0
— 18.2 26.1 1.0
— 16.2 24.2 1.0
— 19.5 27.8 1.0
t_PHL
— 10.8 14.8 1.0
— 14.2 17.4 1.0
Setup time t_su
Pulse
t_w
width
6.0 — — 6.0
5.0 — — 5.0
5.0 — — 5.0
Max
—
—
20.5
24.5
23.5
27.5
26.0
30.0
28.0
32.0
17.0
20.0
—
—
—
Unit
MHz
ns
ns
ns
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 = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
FROM
(Input)
TO
(Output)
CLK
Q_A
Q_B
Q_C
Q_D
CLR
Q_n
CLR L before CLK ↓
CLR H
CLK H or L
7