IN74VHC240
AC electrical characteristics
(t
LH
= t
HL
= 3.0 ns)
Symbol
t
PHL
, t
PLH
Parameter
Test
conditi V
CC
, V
ons
Value
C
L
,
pF
15
50
15
50
50
50
15
50
15
50
50
50
–40
to 85
°C
min max min max
–
7.5
–
9.0
–
11.0
–
12.5
–
5.5
–
6.5
–
7.5
–
8.5
–
14.0
–
16.0
25
°C
–
–
–
–
–
–
–
9.2
10.6
14.1
7.3
9.3
1.5
1.0
–
–
–
–
–
–
–
10.5
12.5
16.0
8.5
10.5
1.5
1.0
Unit
ns
Propagation delay time Figure 3.3 ± 0.3
when switching "on", 1
"off"
5.0 ± 0.5
t
PHZ
, t
PLZ
Propagation delay time Figure 3.3 ± 0.3
under transition from 2
high , low level into "off"
5.0 ± 0.5
state
t
PZH
, t
PZL
Propagation delay time Figure
under transition from 2
«off» state into high, low
level
t
OSLH
, t
OSHL
Propagation
delays –
difference
between
outputs
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.5 ± 0.5
Capacitance characteristics
Symbol
C
I
C
O
C
РD
Parameter
Input capacity
Output capacity
Dynamic capacity
Test conditions
-
-
V
I
= 0 V orV
CC
V
CC
, V
5.0
5.0
5.0
Value
25
°C
min
max
10
12
34
Unit
pF
pF
pF
Noise characteristics
(C
L
= 50 pF)
Parameter
Symbol
V
OLP
V
OLV
V
IHD
V
ILD
V
CC
, V
Positive noise of low output voltage
5.0
Negative noise of low output 5.0
voltage
Input dynamic high voltage
Input dynamic low voltage
5.0
5.0
min
-
-0.9
3.5
-
Value
max
0.9
-
-
1.5
Unit
V
5
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