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54FCT245 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. 54FCT245
Description  Octal Bidirectional Transceiver with TRI-STATE Outputs
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

54FCT245 Datasheet(HTML) 4 Page - National Semiconductor (TI)

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AC Electrical Characteristics
Symbol
Parameter
54FCT
Units
Fig.
No.
T
A = −55˚C to +125˚C
V
CC = 4.5V– 5.5V
C
L = 50 pF
Min
Max
t
PLH
Propagation Delay
1.5
7.5
ns
Figure
4
t
PHL
Data to Outputs
1.5
7.5
t
PZH
Output Enable
1.5
10.0
ns
Figure
5
t
PZL
Time
1.5
10.0
t
PHZ
Output Disable
1.5
10.0
ns
Figure
5
t
PLZ
Time
1.5
10.0
Capacitance
Symbol
Parameter
Max
Units
Conditions
T
A = 25˚C
C
IN
Input Capacitance
10.0
pF
V
CC = 0V (OE , T/R)
C
I/O (Note 4)
I/O Capacitance
12.0
pF
V
CC = 5.0V (An,Bn)
Note 4: CI/O is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012.
AC Loading
DS100950-6
*Includes jig and probe capacitance
FIGURE 1. Standard AC Test Load
DS100950-7
FIGURE 2. Test Input Signal Levels
Amplitude
Rep. Rate
t
w
t
r
t
f
3.0V
1 MHz
500 ns
2.5 ns
2.5 ns
FIGURE 3. Test Input Signal Requirements
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