NXP Semiconductors
74HC154; 74HCT154
4-to-16 line decoder/demultiplexer
10. Dynamic characteristics
Table 8.
Dynamic characteristics
GND (ground = 0 V); C
L
= 50 pF unless otherwise specified; for test circuit, see
Symbol
Parameter
Conditions
Min
74HC154
t
pd
propagation delay
An to Yn; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 5 V; C
L
= 15 pF
V
CC
= 6.0 V
En to Yn; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 5 V; C
L
= 15 pF
V
CC
= 6.0 V
t
t
transition time
see
and
8
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
C
PD
74HCT154
t
pd
propagation delay
An to Yn; see
V
CC
= 4.5 V
V
CC
= 5 V; C
L
= 15 pF
En to Yn; see
V
CC
= 4.5 V
V
CC
= 5 V; C
L
= 15 pF
t
t
C
PD
transition time
power dissipation
capacitance
t
pd
is the same as t
PLH
and t
PHL
t
t
is the same as t
TLH
and t
THL
C
PD
is used to determine the dynamic power dissipation (P
D
in
µW).
P
D
= C
PD
×
V
CC2
×
f
i
×
N +
Σ(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in V;
N = number of load switching outputs;
Σ(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
74HC_HCT154_6
© NXP B.V. 2007. All rights reserved.
25
°C
Typ
Max
−40 °C
to +125
°C
Min
Max
(85
°C)
Max
(125
°C)
Unit
-
-
-
-
-
-
-
-
36
13
11
10
39
14
11
11
19
7
6
60
150
30
-
26
150
30
-
26
75
15
13
-
-
-
-
-
-
-
-
-
-
-
-
-
190
38
-
33
190
38
-
33
95
19
16
-
225
45
-
38
225
45
-
38
110
22
19
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
-
-
-
power dissipation
capacitance
per gate; V
I
= GND to
V
CC
-
-
-
-
-
16
13
15
13
7
60
35
-
32
-
15
-
-
-
-
-
-
-
44
-
40
-
19
-
53
-
48
-
22
-
ns
ns
ns
ns
ns
pF
see
and
8
V
CC
= 4.5 V
per gate; V
I
= GND to
(V
CC
−
1.5 V)
-
-
[1]
[2]
[3]
Product data sheet
Rev. 06 — 12 February 2007
10 of 21
PHILIPS [ NXP SEMICONDUCTORS ]
