IN74HCT20
AC ELECTRICAL CHARACTERISTICS(VCC =5.0 V ±10%,CL=50pF,Input tr=tf=6.0 ns)
Guaranteed Limit
Symbol
Parameter
25 °C ≤85°C ≤125° Unit
to
C
-55°C
tPLH, Maximum Propagation Delay, Input A 28
35
42 ns
tPHL ,B,C or D to Output Y (Figures 1 and 2)
tTLH, tTHL Maximum Output Transition Time, Any 15
19
22 ns
Output (Figures 1 and 2)
CIN Maximum Input Capacitance
10
10
10 pF
Power Dissipation Capacitance (Per Typical @25°C,VCC=5.0
Gate)
V
CPD Used to determine the no-load dynamic
29
pF
power
consumption:
PD=CPDVCC2f+ICCVCC
Figure 1. Switching Waveforms
Figure 2. Test Circuit
EXPANDED LOGIC DIAGRAM
(1/2 of the Device)
4