Renesas HD74UH04 Manual De Usuario
HD74UH04
Rev.4.00, Feb.02.2004, page 4 of 6
Switching Characteristics
(C
L
= 15 pF, t
r
= t
f
= 6 ns, V
CC
= 5 V)
Ta = 25°C
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Output rise/fall time
t
TLH
t
THL
—
5
10
ns
See Test circuit
Propagation delay time
t
PLH
t
PHL
—
7
15
ns
See Test circuit
(C
L
= 50 pF, t
r
= t
f
= 6 ns)
Ta = 25°C
Ta = –40 to 85°C
Item
Symbol
V
CC
(V)
Min
Typ
Max
Min
Max
Unit
Test Conditions
2.0
—
50
125
—
155
4.5
—
14
25
—
31
Output rise/fall time
t
TLH
t
THL
6.0
—
12
21
—
26
ns
See Test circuit
2.0
—
48
100
—
125
4.5
—
12
20
—
25
Propagation delay time
t
PLH
t
PHL
6.0
—
9
17
—
21
ns
See Test circuit
Input capacitance
C
IN
—
—
5
10
—
10
Equivalent capacitance
C
PD
—
—
10
—
—
—
pF
Note:
C
PD
is equivalent capacitance inside of the IC calculated from the operating current without load (see
test circuit). The average operating current without load is calculated according to the expression
below.
below.
I
CC
(opr) = C
PD
• V
CC
• f
IN
+ I
CC