Datasheet

December 1990 10
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer 74HC/HCT4051
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
=t
f
= 6 ns; C
L
=50pF
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
V
EE
(V)
OTHER
+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
t
PHL
/ t
PLH
propagation
delay V
is
to V
os
5
4
12
8
15
10
18
12
ns 4.5
4.5
0
−4.5
R
L
= ∞; C
L
=50pF
(see Fig.17)
t
PZH
/ t
PZL
turn “ON” time
E to V
os
26
16
55
39
69
49
83
59
ns 4.5
4.5
0
−4.5
R
L
=1kΩ; C
L
=50pF
(see Fig.18, 19 and 20)
t
PZH
/ t
PZL
turn “ON” time
S
n
to V
os
28
16
55
39
69
49
83
59
ns 4.5
4.5
0
−4.5
R
L
=1kΩ; C
L
=50pF
(see Fig.18, 19 and 20)
t
PHZ
/ t
PLZ
turn “OFF”
time E to V
os
19
16
45
32
56
40
68
48
ns 4.5
4.5
0
−4.5
R
L
=1kΩ; C
L
=50pF
(see Fig.18, 19 and 20)
t
PHZ
/ t
PLZ
turn “OFF”
time S
n
to V
os
23
16
45
32
56
40
68
48
ns 4.5
4.5
0
−4.5
R
L
=1kΩ; C
L
=50pF
(see Fig.18, 19 and 20)
Fig.8 Test circuit for measuring R
ON
. Fig.9 Typical R
ON
as a function of input voltage V
is
for V
is
= 0 to V
CC
− V
EE
.