HD74LV163A Datasheet, PDF (9/19 Pages) Hitachi Semiconductor – Synchronous 4-bit Binary Counter (Synchronous Clear)

HD74LV163A
Switching Characteristics (cont)
• V_CC = 3.3 ± 0.3 V
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol Min
Maximum t_max
80
clock
frequency
55
Propa-
gation
t_PLH/t_PHL —
delay time
—
t_PLH/t_PHL —
Count —
mode
t_PLH/t_PHL —
Load
—
mode
t_PLH/t_PHL —
—
Setup time t_su
5.5
8.0
7.5
Typ Max Min
130 — 70
85 — 50
8.3 12.8 1.0
10.8 16.3 1.0
8.7 13.6 1.0
11.2 17.1 1.0
11.0 17.2 1.0
13.5 20.7 1.0
7.5 12.3 1.0
10.5 15.8 1.0
— — 6.5
— — 9.5
— — 9.0
Max
—
—
15.0
18.5
16.0
19.5
20.0
23.5
14.5
18.0
—
—
—
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
C_L = 15 pF
C_L = 50 pF
C_L = 15 pF
C_L = 50 pF
ns
Hold time t_h
Pulse
t_w
width
4.0 — — 4.0
—
1.0 — — 1.0
—
ns
1.0 — — 1.0
—
5.0 — — 5.0
—
ns
FROM
(Input)
TO
(Output)
CLK
Q
CLK
Carry
CLK
Carry
ENT
Carry
Data before CLK ↑
LOAD before CLK ↑
ENT, ENP before
CLK ↑
CLR before CLK ↑
CLR after CLK ↑
CLK H or L
9