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MM54HCT253 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. MM54HCT253
Description  Dual 4-Channel TRI-STATE-R Multiplexer
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

MM54HCT253 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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AC Electrical Characteristics VCC e 5V TA e 25 C tr e tf e 6 ns CL e 15 pF
Symbol
Parameter
Conditions
Typ
Units
tPHL tPLH
Maximum Propagation
23
ns
Delay Select A or B to Y
tPHL tPLH
Maximum Propagation
20
ns
Delay any Data to Y
tPZH tPZL
Maximum Output Enable Time
RL e 1k
15
ns
Y Output to a Logic Level
tPHZ tPLZ
Maximum Output Disable Time
RL e 1k
11
ns
Y Output to High Impedance State
AC Electrical Characteristics CL e 50 pF tr e tf e 6 ns (unless otherwise specified)
TA e 25 C
74HC
54HC
Symbol
Parameter
Conditions
TA eb40 Cto85 CTA e 55 Cto125 C
Units
Min Typ Max
Min
Max
Min
Max
tPHL tPLH Maximum Propagation
26
40
50
60
ns
Delay Select A or B to Y
tPHL tPLH Maximum Propagation
24
35
44
53
ns
Delay and Data to Y
tPZH tPZL Maximum Output Enable Time RL e 1kX
19
26
33
39
ns
tPHZ tPLZ Maximum Output Disable Time RL e 1kX
13
20
25
30
ns
tTHL tTLH Maximum Output Rise
8
15
19
22
ns
and Fall Time
CIN
Maximum Input Capacitance
5
10
10
10
pF
CPD
Power Dissipation
(per package)
Capacitance (Note 5)
Output Enabled
90
pF
Outputs Disabled
25
pF
Note 5
CPD determines the no load dynamic power consumption PDeCPD VCC 2 faICC VCC and the no load dynamic current consumption ISeCPD VCC faICC
Logic Diagram
TLF8434 – 2
3


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