MC74HCT138A Datasheet, PDF (4/6 Pages) Motorola, Inc – 1-of-8 Decoder/Demultiplexer with LSTTL Compatible Inputs

MC74HCT138A
INPUT A
tPLH
OUTPUT Y
SWITCHING WAVEFORMS
VALID
1.3 V
1.3 V
VALID
tPHL
tr
3V
INPUT CS1
2.7 V
1.3 V
0.3 V
GND
tPHL
OUTPUT Y
90%
1.3 V
10%
tTHL
Figure 1.
Figure 2.
tr
INPUT
CS2, CS3
2.7 V
1.3 V
0.3 V
tPHL
OUTPUT Y
90%
1.3 V
10%
tTHL
Figure 3.
tf
3V
GND
tPLH
tTLH
tf
3V
GND
tPLH
tTLH
TEST CIRCUIT
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
* Includes all probe and jig capacitance
Figure 4.
MOTOROLA
4
High–Speed CMOS Logic Data
DL129 — Rev 6