74LVC138A Philips, 74LVC138A Datasheet - Page 6

• Manufacturer Part Number: 74LVC138A
• Description: 3-to-8 line decoder/demultiplexer; inverting
• Manufacturer: Philips

Philips Semiconductors
AC WAVEFORMS
V
V
V
output load.
1998 Apr 28
M
M
OL
3-to-8 line decoder/demultiplexer; inverting
= 1.5 V at V
= 0.5 S V
Figure 1. Input (nA) to output (nY) propagation delays.
and V
Y n OUTPUT
Y n OUTPUT
OH
Figure 2. 3-State enable and disable times.
E 1 , E 2
A n , E 3
INPUT
CC
INPUT
GND
V OH
V CC
V OL
V OH
V CC
GND
are the typical output voltage drop that occur with the
V OL
CC
at V
w 2.7 V
t PHL
t PHL
CC
< 2.7 V
V M
V M
V M
V M
SV00558
SV00557
t PLH
t PLH
6
TEST CIRCUIT
GENERATOR
PULSE
SWITCH POSITION
t
PLH/
TEST
Figure 3. Load circuitry for switching times.
t
PHL
Open
V
I
S
1
R
T
D.U.T.
V
CC
2.7–3.6V
< 2.7V
V
CC
V
O
74LVC138A
C
L
2.7V
V
V
Product specification
CC
I
50pF
S
SV00903
1
500
500
2 * V
Open
GND
CC