IN74HC157A
AC ELECTRICAL CHARACTERISTICS (CL=50pF,Input tr=tf=6.0 ns)
VCC
Guaranteed Limit
Symbol
Parameter
V
25 °C to
-55°C
£85°C
£125°C
Unit
ns
tPLH, tPHL Maximum Propagation Delay, Input A or B to
Output Y (Figures 1and 4)
2.0
4.5
6.0
105
21
18
130
26
22
160
32
27
tPLH, tPHL Maximum Propagation Delay , Select to
Output Y (Figures 2 and 4)
2.0
4.5
6.0
110
22
19
140
28
24
165
33
28
ns
ns
ns
pF
tPLH, tPHL Maximum Propagation Delay , Output Enable to
Output Y (Figures 3 and 4)
2.0
4.5
6.0
100
20
17
125
25
21
150
30
26
tTLH, tTHL Maximum Output Transition Time, Any Output
(Figures 1 and 4)
2.0
4.5
6.0
75
15
13
95
19
16
110
22
19
CIN
Maximum Input Capacitance
-
10
10
10
Power Dissipation Capacitance (Per Package)
Typical @25°C,VCC=5.0 V
CPD
Used to determine the no-load dynamic power
consumption:
33
pF
PD=CPDVCC2f+ICCVCC
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
Figure 3. Switching Waveforms
Figure 4. Test Circuit
INTEGRAL
4
INTEGRAL [ INTEGRAL CORP. ]
