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DM74LS373N 数据表(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 DM74LS373N
功能描述  TRI-STATEE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

DM74LS373N 数据表(HTML) 4 Page - National Semiconductor (TI)

  DM74LS373N Datasheet HTML 1Page - National Semiconductor (TI) DM74LS373N Datasheet HTML 2Page - National Semiconductor (TI) DM74LS373N Datasheet HTML 3Page - National Semiconductor (TI) DM74LS373N Datasheet HTML 4Page - National Semiconductor (TI) DM74LS373N Datasheet HTML 5Page - National Semiconductor (TI) DM74LS373N Datasheet HTML 6Page - National Semiconductor (TI) DM74LS373N Datasheet HTML 7Page - National Semiconductor (TI) DM74LS373N Datasheet HTML 8Page - National Semiconductor (TI)  
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‘LS373 Switching Characteristics at VCC e 5V and TA e 25 C
(See Section 1 for Test Waveforms and Output Load)
From
RL e 667X
(Input)
Symbol
Parameter
CL e 45 pF
CL e 150 pF
Units
To
Min
Max
Min
Max
(Output)
tPLH
Propagation Delay
Data
Time Low to High
to
18
26
ns
Level Output
Q
tPHL
Propagation Delay
Data
Time High to Low
to
18
27
ns
Level Output
Q
tPLH
Propagation Delay
Enable
Time Low to High
to
30
38
ns
Level Output
Q
tPHL
Propagation Delay
Enable
Time High to Low
to
30
36
ns
Level Output
Q
tPZH
Output Enable
Output
Time to High
Control
28
36
ns
Level Output
to Any Q
tPZL
Output Enable
Output
Time to Low
Control
36
50
ns
Level Output
to Any Q
tPHZ
Output Disable
Output
Time from High
Control
20
ns
Level Output (Note 3)
to Any Q
tPLZ
Output Disable
Output
Time from Low
Control
25
ns
Level Output (Note 3)
to Any Q
Note 1
All typicals are at VCC e 5V TA e 25 C
Note 2
Not more than one output should be shorted at a time and the duration should not exceed one second
Note 3
CL e 5 pF
Recommended Operating Conditions
Symbol
Parameter
DM54LS374
DM74LS374
Units
Min
Nom
Max
Min
Nom
Max
VCC
Supply Voltage
45
5
55
475
5
525
V
VIH
High Level Input Voltage
2
2
V
VIL
Low Level Input Voltage
07
08
V
IOH
High Level Output Current
b
1
b
26
mA
IOL
Low Level Output Current
12
24
mA
tW
Pulse Width
Clock High
15
15
ns
(Note 4)
Clock Low
15
15
tSU
Data Setup Time (Notes14)
20
u
20
u
ns
tH
Data Hold Time (Notes14)
1
u
1
u
ns
TA
Free Air Operating Temperature
b
55
125
0
70
C
Note 1
The symbol (
u) indicates the rising edge of the clock pulse is used for reference
Note 4
TA e 25 C and VCC e 5V
4


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