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DM54LS374 Fiches technique(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce DM54LS374
Description  TRI-STATEE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops
PDF  8 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM54LS374 Fiches technique(HTML) 5 Page - National Semiconductor (TI)

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’LS374 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
VI
Input Clamp Voltage
VCC e Min II eb18 mA
b
15
V
VOH
High Level Output Voltage
VCC e Min
DM54
24
34
IOH e Max
DM74
24
31
V
VIL e Max
VIH e Min
VOL
Low Level Output Voltage
VCC e Min
DM54
025
04
IOL e Max
DM74
035
05
VIL e Max
V
VIH e Min
IOL e 12 mA
DM74
025
04
VCC e Min
II
Input Current
Max
VCC e Max VI e 7V
01
mA
Input Voltage
IIH
High Level Input Current
VCC e Max VI e 27V
20
m
A
IIL
Low Level Input Current
VCC e Max VI e 04V
b
04
mA
IOZH
Off-State Output
VCC e Max VO e 27V
Current with High
VIH e Min VIL e Max
20
m
A
Level Output
Voltage Applied
IOZL
Off-State Output
VCC e Max VO e 04V
Current with Low
VIH e Min VIL e Max
b
20
m
A
Level Output
Voltage Applied
IOS
Short Circuit
VCC e Max
DM54
b
50
b
225
mA
Output Current
(Note 2)
DM74
b
50
b
225
ICC
Supply Current
VCC e Max Dn e GND OC e 45V
27
45
mA
’LS374 Switching Characteristics at VCC e 5V and TA e 25 C
(See Section 1 for Test Waveforms and Output Load)
RL e 667X
Symbol
Parameter
CL e 45 pF
CL e 150 pF
Units
Min
Max
Min
Max
fMAX
Maximum Clock Frequency
35
20
MHz
tPLH
Propagation Delay Time
28
32
ns
Low to High Level Output
tPHL
Propagation Delay Time
28
38
ns
High to Low Level Output
tPZH
Output Enable Time
28
44
ns
to High Level Output
tPZL
Output Enable Time
28
44
ns
to Low Level Output
tPHZ
Output Disable Time
20
ns
from High Level Output (Note 3)
tPLZ
Output Disable Time
25
ns
from Low Level Output (Note 3)
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
5



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