SL74HC20
AC ELECTRICAL CHARACTERISTICS
(C
L
=50pF,Input t
r
=t
f
=6.0 ns)
V
CC
Symbol
t
PLH
, t
PHL
Parameter
Maximum Propagation Delay, Input A ,B,C or D to
Output Y (Figures 1 and 2)
Maximum Output Transition Time, Any Output
(Figures 1 and 2)
Maximum Input Capacitance
V
2.0
4.5
6.0
2.0
4.5
6.0
-
Guaranteed Limit
25
°C
to
-55°C
90
18
15
75
15
13
10
≤85°C
115
23
20
95
19
16
10
≤125°C
135
27
23
110
22
19
10
Unit
ns
t
TLH
, t
THL
ns
C
IN
pF
Power Dissipation Capacitance (Per Gate)
C
PD
Used to determine the no-load dynamic power
consumption:
P
D
=C
PD
V
CC2
f+I
CC
V
CC
Typical @25°C,V
CC
=5.0 V
26
pF
Figure 1. Switching Waveforms
Figure 2. Test Circuit
EXPANDED LOGIC DIAGRAM
(1/2 of the Device)
SLS
System Logic
Semiconductor
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
