MC74HCT138 MOTOROLA [Motorola, Inc], MC74HCT138 Datasheet - Page 4

• Manufacturer Part Number: MC74HCT138
• Description: 1-of-8 Decoder/Demultiplexer with LSTTL Compatible Inputs
• Manufacturer: MOTOROLA [Motorola, Inc]

MOTOROLA
MC74HCT138A
OUTPUT Y
INPUT A
t PLH
1.3 V
1.3 V
VALID
Figure 1.
OUTPUT Y
CS2, CS3
VALID
INPUT
t PHL
t PHL
* Includes all probe and jig capacitance
SWITCHING WAVEFORMS
t THL
DEVICE
UNDER
TEST
2.7 V
1.3 V
0.3 V
TEST CIRCUIT
3 V
GND
t r
90%
Figure 4.
1.3 V
Figure 3.
10%
4
OUTPUT
INPUT CS1
OUTPUT Y
TEST POINT
C L *
t PHL
t f
t THL
t PLH
t TLH
0.3 V
3 V
GND
1.3 V
2.7 V
Figure 2.
90%
1.3 V
10%
t r
High–Speed CMOS Logic Data
t f
t PLH
t TLH
DL129 — Rev 6
GND
3 V