74HC154 Philips, 74HC154 Datasheet - Page 6

• Manufacturer Part Number: 74HC154
• Description: 4-to-16 line decoder/demultiplexer
• Manufacturer: Philips

Philips Semiconductors
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
Output capability: standard
I
Note to HCT types
The value of additional quiescent supply current ( I
To determine I
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
September 1993
CC
INPUT
A
E
SYMBOL PARAMETER
t
t
t
PHL
PHL
THL
n
n
4-to-16 line decoder/demultiplexer
category: MSI
/ t
/ t
/ t
TLH
PLH
PLH
propagation delay
propagation delay
output transition time
r
= t
A
E
UNIT LOAD COEFFICIENT
1.0
1.0
n
CC
f
n
to Y
= 6 ns; C
to Y
per input, multiply this value by the unit load coefficient shown in the table below.
n
n
L
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
min.
16
15
7
typ.
25
CC
35
32
15
max. min. max.
) for a unit load of 1 is given in the family specifications.
6
T
74HCT
amb
40 to 85
( C)
44
40
19
min.
40 to 125
53
48
22
max.
.
UNIT
ns
ns
ns
74HC/HCT154
4.5
4.5
4.5
V
TEST CONDITIONS
Product specification
(V)
CC
WAVEFORMS
Fig.6
Fig.7
Figs 6 and 7