Philips Semiconductors
Product specification
3-to-8 line decoder/demultiplexer; inverting
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HC
SYMBOL PARAMETER
min.
t
PHL
/ t
PLH
propagation delay
A
n
to Y
n
propagation delay
E
3
to Y
n
propagation delay
E
n
to Y
n
output transition
time
+25
typ.
41
15
12
47
17
14
47
17
14
19
7
6
max.
150
30
26
150
30
26
150
30
26
75
15
13
−40
to
+85
min.
max.
190
38
33
190
38
33
190
38
33
95
19
16
−40
to
+125
min.
max.
225
45
38
225
45
38
225
45
38
110
22
19
ns
UNIT
74HC/HCT138
TEST CONDITIONS
V
CC
WAVEFORMS
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Fig.6
t
PHL
/ t
PLH
ns
Fig.6
t
PHL
/ t
PLH
ns
Fig.7
t
THL
/ t
TLH
ns
Figs 6 and 7
September 1993
5
PHILIPS [ NXP SEMICONDUCTORS ]
