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54AC257 Scheda tecnica(PDF) 6 Page - Texas Instruments

Il numero della parte 54AC257
Spiegazioni elettronici  Quad 2-Input Multiplexer with TRI-STATE Outputs
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Produttore elettronici  TI1 [Texas Instruments]
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54AC257 Scheda tecnica(HTML) 6 Page - Texas Instruments

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OBSOLETE
54AC257, 54ACT257
SNOS102B – JULY 1998 – REVISED APRIL 2013
www.ti.com
AC ELECTRICAL CHARACTERISTICS
54AC
VCC
TA = −55°C
Symbol
Parameter
Units
(V)(1)
to +125°C
CL = 50 pF
Propagation Delay In to Zn
3.3
1.0
11.0
tPLH
ns
5.0
1.0
8.0
Propagation Delay In to Zn
3.3
1.0
11.0
tPHL
ns
5.0
1.0
8.5
tPLH
Propagation Delay S to Zn
3.3
1.0
14.5
ns
5.0
1.0
11.0
tPHL
Propagation Delay S to Zn
3.3
1.0
14.5
ns
5.0
1.0
11.0
3.3
1.0
13.0
tPZH
Output Enable Time
ns
5.0
1.0
10.0
3.3
1.0
11.0
tPZL
Output Enable Time
ns
5.0
1.0
9.5
3.3
1.0
13.0
tPHZ
Output Disable Time
ns
5.0
1.0
11.0
3.3
1.0
10.5
tPLZ
Output Disable Time
ns
5.0
1.0
9.5
(1)
Voltage Range 3.3 is 3.0V ±0.3V.
Voltage Range 5.0 is 5.0V ±0.5V.
AC ELECTRICAL CHARACTERISTICS
54ACT
VCC
TA = −55°C
Symbol
Parameter
Units
(V)(1)
to +125°C
CL = 50 pF
Propagation Delay
tPLH
5.0
1.0
8.0
ns
In to Zn
tPHL
Propagation Delay
5.0
1.0
9.5
ns
In to Zn
tPLH
Propagation Delay
5.0
1.0
11.0
ns
S to Zn
tPHL
Propagation Delay
5.0
1.0
11.5
ns
S to Zn
tPZH
Output Enable Time
5.0
1.0
9.5
ns
tPZL
Output Enable Time
5.0
1.0
9.5
ns
tPHZ
Output Disable Time
5.0
1.0
10.5
ns
tPLZ
Output Disable Time
5.0
1.0
9.5
ns
(1)
Voltage Range 5.0 is 5.0V ±0.5V.
CAPACITANCE
Symbol
Parameter
Typ
Units
Conditions
CIN
Input Capacitance
4.5
pF
VCC = OPEN
CPD
Power Dissipation Capacitance
50.0
pF
VCC = 5.0V
6
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Product Folder Links: 54AC257 54ACT257


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