54abt240 National Semiconductor Corporation, 54abt240 Datasheet - Page 4

• Manufacturer Part Number: 54abt240
• Description: Octal Buffer/line Driver With Tri-state Outputs
• Manufacturer: National Semiconductor Corporation

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C
C
AC Electrical Characteristics
Capacitance
Note 5: C
AC Loading
*Includes jig and probe capacitance
IN
OUT
t
t
t
t
t
t
Symbol
PLH
PHL
PZH
PZL
PHZ
PLZ
(Note 5)
Symbol
OUT
FIGURE 2. Test Input Signal Levels
FIGURE 1. Standard AC Test Load
is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012.
Propagation Delay
Data to Outputs
Output Enable
Time
Output Disable
Time
Parameter
Input Capacitance
Output Capacitance
Parameter
DS100202-3
DS100202-4
Min
0.8
1.0
0.8
0.8
1.0
1.0
T
A
V
= −55˚C to +125˚C
CC
4
C
L
= 4.5V–5.5V
54ABT
= 50 pF
Amplitude
Typ
5.0
9.0
3.0V
FIGURE 3. Test Input Signal Requirements
Max
5.5
5.5
7.5
7.7
7.5
7.2
Rep. Rate
1 MHz
Units
pF
pF
500 ns
Units
t
ns
ns
ns
W
V
V
CC
CC
2.5 ns
t
= 0V
= 5.0V
Conditions
r
T
A
= 25˚C
Figure 5
Figure 4
Figure 4
Fig.
No.
2.5 ns
t
f