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DM54LS259 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 8-Bit Addressable Latches - National Semiconductor

भाग संख्या DM54LS259
समारोह 8-Bit Addressable Latches
मैन्युफैक्चरर्स National Semiconductor 
लोगो National Semiconductor लोगो 
पूर्व दर्शन
1 Page
		
<?=DM54LS259?> डेटा पत्रक पीडीएफ

DM54LS259 pdf
Absolute Maximum Ratings (Note)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
DM54
b55 C to a125 C
DM74LS
0 C to a70 C
Storage Temperature Range
b65 C to a150 C
Note The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed The device should not be operated at these limits The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation
Recommended Operating Conditions
Symbol
VCC
VIH
VIL
IOH
IOL
tW
tSU
tH
TA
Parameter
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Pulse Width
(Note 7)
Enable
Clear
Setup Time
(Notes 1 2 3 7)
Data
Select
Hold Time
(Notes 1 2 7)
Data
Select
Free Air Operating Temperature
DM54LS259
Min Nom Max
45 5 55
2
07
b0 4
4
17
17
20u
15v
5u
0u
b55
125
Min
4 75
2
15
15
15u
15v
2 5u
2 5u
0
DM74LS259
Nom
5
Max
5 25
08
b0 4
8
70
Units
V
V
V
mA
mA
ns
ns
ns
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
(Note 4)
Max
Units
VI
VOH
Input Clamp Voltage
High Level Output
Voltage
VCC e Min II e b18 mA
VCC e Min IOH e Max
VIL e Max VIH e Min
DM54
DM74
25
27
b1 5
V
V
34
VOL
Low Level Output
VCC e Min IOL e Max
DM54
Voltage
VIL e Max VIH e Min
DM74
04
0 35 0 5 V
IOL e 4 mA VCC e Min
DM74
II
Input Current Max
VCC e Max VI e 7V
DM74
Input Voltage
VI e 10V
DM54
0 25 0 4
0 1 mA
IIH
High Level Input
VCC e Max VI e 2 7V
Current
20 mA
IIL
Low Level Input
VCC e Max VI e 0 4V
Current
b0 4
mA
Enable
IOS Short Circuit
Output Current
VCC e Max VI e 0 4V
VCC e Max
(Note 5)
DM54
DM74
b20
b20
b0 8
b100
b100
mA
ICC Supply Current
VCC e Max (Note 6)
22 36 mA
v u u vNote 1 The symbols (
) indicate the edge of the clock pulse used for reference for rising edge for falling edge
Note 2 Setup and hold times are with reference to the enable input
Note 3 The select-to-enable setup time is the time before the High-to-Low enable transition that the select must be stable so that the correct latch is selected and
the others not affected
Note 4 All typicals are at VCC e 5V TA e 25 C
Note 5 Not more than one output should be shorted at a time and the duration should not exceed one second
Note 6 ICC is measured with all inputs at 4 5V and all outputs open
Note 7 TA e 25 C and VCC e 5V
2

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डाउनलोड[ DM54LS259 Datasheet.PDF ]


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