74hct245a IK Semicon Co., Ltd, 74hct245a Datasheet - Page 4

• Manufacturer Part Number: 74hct245a
• Description: Octal 3-state Noninverting Bus Transceiver
• Manufacturer: IK Semicon Co., Ltd

AC ELECTRICAL CHARACTERISTICS
t
t
t
t
Symbol
PLH
TLH
PLZ
PZL
C
C
C
, t
, t
OUT
, t
, t
PD
IN
Figure 1. Switching Waveforms
PHL
PHZ
PZH
THL
Maximum Propagation Delay, A to B or B to A
(Figures 1 and 3)
Maximum Propagation Delay , Direction or
Output Enable to A or B (Figures 2 and 4)
Maximum Propagation Delay , Direction or
Output Enable to A or B (Figures 2 and 4)
Maximum Output Transition Time, Any Output
(Figures 1 and 3)
Maximum Input Capacitance (Pin 1 or Pin 19)
Maximum Three-State I/O Capacitance
(I/O in High-Impedance State)
Power Dissipation Capacitance (Per Enable
Output)
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
22
32
30
12
10
15
to
L
=50pF,Input t
Guaranteed Limit
≤85°C
28
40
38
15
10
15
97
r
CC
=t
≤125°C
=5.0 V
f
=6.0 ns)
IN74HCT245A
33
48
45
18
10
15
Rev. 00
Unit
pF
pF
pF
ns
ns
ns
ns