KK74HCT240A Datasheet, PDF (4/6 Pages) KODENSHI KOREA CORP. – Octal 3-State Inverting Buffer/Line Driver/Line Receiver High-Performance Silicon-Gate CMOS

KK74HCT240A
AC ELECTRICAL CHARACTERISTICS (V_CC=5.0 V ± 10%, C_L=50pF,Input t_r=t_f=6.0 ns)
Symbol
Parameter
t_PLH, t_PHL
t_PLZ, t_PHZ
t_PZH, t_PZL
t_TLH, t_THL
C_IN
C_OUT
Maximum Propagation Delay, A to YA or B to
YB (Figures 1 and 3)
Maximum Propagation Delay, Output Enable to
YA or YB (Figures 2 and 4)
Maximum Propagation Delay, Output Enable to
YA or YB (Figures 2 and 4)
Maximum Output Transition Time, Any Output
(Figures 1 and 3)
Maximum Input Capacitance
Maximum Three-State Output Capacitance
(Output in High-Impedance State)
Guaranteed Limit
25 °C
to
-55°C
≤85°C ≤125°C Unit
20
25
30
ns
28
35
42
ns
25
31
38
ns
12
15
18
ns
10
10
10
pF
15
15
15
pF
Power Dissipation Capacitance (Per Enable
Output)
C_PD Used to determine the no-load dynamic power
consumption:
P_D=C_PDV_CC2f+I_CCV_CC
Typical @25°C,V_CC=5.0 V
55
pF
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
4