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MM74HC253 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. MM74HC253
Description  Dual 4-Channel TRI-STATE Multiplexer
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

MM74HC253 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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AC Electrical Characteristics VCCe5V TAe25 C tretfe6 ns CLe15 pF
Symbol
Parameter
Conditions
Typ
Guaranteed Limit
Units
tPHL tPLH
Maximum Propagation
24
30
ns
Delay Select A or B to Y
tPHL tPLH
Maximum Propagation
18
23
ns
Delay any Data to Y
tPZH tPZL
Maximum Output Enable Time
RLe1kX
13
18
ns
Y Output to a Logic Level
tPHZ tPLZ
Maximum Output Disable Time
RLe1kX
18
27
ns
Y Output to High Impedance State
AC Electrical Characteristics CLe50 pF tretfe6 ns (unless otherwise specified)
TAe25 C
74HC
54HC
Symbol
Parameter
Conditions
VCC
TAeb40 to 85 CTAeb55 to 125 C Units
Typ
Guaranteed Limits
tPHL tPLH Maximum Propagation
20V
131
158
198
237
ns
Delay Select A or B to Y
45V
29
35
44
53
ns
60V
24
30
38
45
ns
tPHL tPLH Maximum Propagation
20V
99
126
158
189
ns
Delay any Data to Y
45V
22
28
35
42
ns
60V
19
23
29
35
ns
tPZH tPZL Maximum Output Enable Time
RLe1kX
20V
63
90
113
135
ns
45V
14
20
25
30
ns
60V
12
17
21
26
ns
tPHZ tPLZ Maximum Output Disable Time RLe1kX
20V
90
135
169
203
ns
45V
20
30
38
45
ns
60V
17
25
31
38
ns
tTHL tTLH Maximum Output Rise
20V
30
75
95
110
ns
and Fall Time
45V
8
15
19
22
ns
60V
7
13
16
19
ns
CIN
Maximum Input Capacitance
5
10
10
10
pF
CPD
Power Dissipation
(per package)
Capacitance (Note 5)
Outputs Enabled
90
pF
Outputs Disabled
25
pF
Note 5
CPD determines the no load dynamic power consumption PDeCPD VCC2 faICC VCC and the no load dynamic current consumption ISeCPD VCC faICC
Logic Diagram
TLF5108 – 2
3


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