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74VHCT240AMTR
P1-P3
P4-P6
P7-P9
P10-P12
74VHCT
240A
4/1
2
Table
8: Capacitive Ch
aracteristics
1)
C
PD
is
defi
ned as the
value of
t
he I
C’s int
ernal eq
uivalent
capa
citance
whic
h is calc
ulate
d from t
he operat
ing cur
rent con
sumpt
ion
w
ith
out
lo
ad. (Ref
er to Tes
t
Circ
uit).
Averag
e opera
ting cu
rrent can
be obta
ined by t
he follow
ing equa
tion.
I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/8
(pe
r
Cir
cu
it
)
Table 9: Dynamic Sw
i
tching Characteristics
1) W
orst
ca
se
pa
cka
ge.
2) M
ax numb
er of ou
t
put
s defin
ed as (n).
Dat
a input
s
are dr
iven 0V
to 3
.
0V, (n
-1) out
puts sw
itchin
g and one
out
put at GND
.
3) M
ax
number
of da
t
a i
nputs (
n) sw
itchin
g. (n-1
) swit
ching
0V to 3
.0V.
Inputs
under
test
switchi
ng: 3.
0V to
thres
hold (
V
ILD
), 0V to
thresh
o
ld
(V
IHD
), f
=1M
Hz.
Sym
bol
Pa
r
a
me
t
e
r
T
est C
ondition
V
alu
e
Uni
t
T
A
= 25°
C
-40 to 8
5°C
-55 to 1
25°C
Min.
T
yp.
Max.
Min
.
Max.
Mi
n.
Max.
C
IN
Input Ca
p
acitance
61
0
1
0
1
0
p
F
C
OUT
Output
Capacitance
9p
F
C
PD
Power D
issipation
Capacitance
(note 1)
19
pF
Sym
bol
Pa
r
a
me
t
e
r
T
est C
ondition
V
alu
e
Uni
t
V
CC
(V)
T
A
= 25°
C
-40 to 8
5°C
-55 to 1
25°C
Min.
T
yp.
Max.
Min
.
Max.
Mi
n.
Max.
V
OLP
Dynamic
Low
V
o
lt
age Qu
iet
Output (
note 1, 2)
5.0
C
L
= 50 pF
0.9
1.1
V
V
OL
V
1.1
-0.9
V
IHD
Dynamic
High
V
o
lt
age Inp
ut
(note 1,
3)
5.0
2.0
V
IL
D
Dynamic
Low
V
o
lt
age Inp
ut
(note 1,
3)
5.0
0.8
Obsolete Product(s) - Obsolete Product(s)
74VH
C
T240A
5/12
Fi
gu
re
3:
T
e
st
Cir
cui
t
C
L
=15/ 50
pF or equi
valen
t
(i
nclude
s
jig an
d probe c
apacitan
ce)
R
L
= R
1
= 1K
Ω
o
r eq
uivalent
R
T
= Z
OUT
of
pulse generator (ty
pically 50
Ω
)
Figur
e 4: Waveform
- Propagation
Delays
(f=1MHz; 5
0% duty cycle
)
TEST
SWITCH
t
PL
H
, t
PHL
Open
t
PZL
, t
PLZ
V
CC
t
PZH
, t
PHZ
GND
Obsolete Product(s) - Obsolete Product(s)
74VHCT
240A
6/1
2
Figur
e 5: Waveform - O
utput Enable An
d
Di
sab
le
T
ime
(f=1MHz; 50% duty cycle
)
Obsolete Product(s) - Obsolete Product(s)
P1-P3
P4-P6
P7-P9
P10-P12
74VHCT240AMTR
Mfr. #:
Buy 74VHCT240AMTR
Manufacturer:
STMicroelectronics
Description:
IC BUFFER INVERT 5.5V 20SO
Lifecycle:
New from this manufacturer.
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