74HC/HCT137 Philips Semiconductors (Acquired by NXP), 74HC/HCT137 Datasheet - Page 6

• Manufacturer Part Number: 74HC/HCT137
• Description: 3-to-8 Line Decoder/demultiplexer With Address Latches; Inverting
• Manufacturer: Philips Semiconductors (Acquired by NXP)

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
December 1990
CC
INPUT
A
E
E
LE
SYMBO L PARAMETER
t
t
t
t
t
t
t
t
PHL
PHL
PHL
PHL
THL
W
su
h
n
1
2
3-to-8 line decoder/demultiplexer with
address latches; inverting
category: MSI
/ t
/ t
/ t
/ t
/ t
TLH
PLH
PLH
PLH
PLH
r
propagation delay
propagation delay
propagation delay
propagation delay
output transition time
LE pulse width
set-up time
hold time
= t
A
E
LE to Y
E
HIGH
A
CC
A
n
2
f
1
n
n
= 6 ns; C
UNIT LOAD COEFFICIENT
1.50
1.50
1.50
1.50
to Y
to Y
to Y
to LE
per input, multiply this value by the unit load coefficient shown in the table below.
to LE
n
n
n
n
L
= 50 pF
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
min.
10
10
7
typ.
22
25
20
18
7
5
2
2
25
max.
38
44
37
35
15
CC
) for a unit load of 1 is given in the family specifications.
T
74HCT
amb
min. max.
13
13
9
6
40 to 85
( C)
48
55
46
44
19
min.
15
15
11
40 to 125
max.
57
66
56
53
22
.
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
74HC/HCT137
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
TEST CONDITIONS
V
(V)
Product specification
CC
WAVEFORMS
Fig.6
Fig.7
Fig.7
Fig.6
Fig.6
Fig.8
Fig.8
Fig.8