74hct157a IK Semicon Co., Ltd, 74hct157a Datasheet - Page 4

• Manufacturer Part Number: 74hct157a
• Description: Quad 2-input Data Selectors/multiplexer
• Manufacturer: IK Semicon Co., Ltd

AC ELECTRICAL CHARACTERISTICS
t
t
t
t
Symbol
TLH
PLH
PLH
PLH
C
C
, t
, t
, t
, t
PD
IN
Figure 1. Switching Waveforms
Figure 3. Switching Waveforms
PHL
PHL
PHL
THL
Maximum Propagation Delay, Input A or B to
Output Y (Figures 1and 4)
Maximum Propagation Delay , Select to
Output Y (Figures 2 and 4)
Maximum Propagation Delay , Output Enable to
Output Y (Figures 3 and 4)
Maximum Output Transition Time, Any Output
(Figures 1 and 4)
Maximum Input Capacitance
Power Dissipation Capacitance (Per Transceiver
Channel)
Used to determine the no-load dynamic power
consumption:
P
D
=C
PD
V
CC
2
f+I
CC
V
CC
Parameter
(V
CC
=5.0 V ± 10%, C
Figure 2. Switching Waveforms
-55°C
Typical @25°C,V
25 °C
27
37
30
15
10
to
Figure 4. Test Circuit
L
=50pF,Input t
Guaranteed Limit
≤85°C
34
46
38
19
10
64
r
CC
=t
≤125°C
=5.0 V
f
=6.0 ns)
IN74HCT157A
41
56
45
22
10
Rev. 00
Unit
pF
pF
ns
ns
ns
ns