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DM74LS259N Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part No. DM74LS259N
Description  8-Bit Addressable Latches
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74LS259N Datasheet(HTML) 3 Page - Fairchild Semiconductor

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Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. 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
Note 2: The symbols (
↓, ↑) indicate the edge of the clock pulse used for reference: ↑ for rising edge, ↓ for falling edge.
Note 3: Setup and hold times are with reference to the enable input.
Note 4: 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 5: TA = 25°C and VCC = 5V.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 6: All typicals are at VCC = 5V, TA = 25°C.
Note 7: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 8: ICC is measured with all inputs at 4.5V, and all outputs OPEN.
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
0
°C to +70°C
Storage Temperature Range
−65°C to +150°C
Symbol
Parameter
Min
Nom
Max
Units
VCC
Supply Voltage
4.75
5
5.25
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−0.4
mA
IOL
LOW Level Output Current
8
mA
tW
Pulse Width
Enable
15
ns
(Note 5)
Clear
15
tSU
Setup Time
Data
15
ns
(Note 2)(Note 3)(Note 4)(Note 5) Select
15
tH
Hold Time
Data
2.5
ns
(Note 2)(Note 3)(Note 5)
Select
2.5
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 6)
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
VOH
HIGH Level
VCC = Min, IOH = Max
2.7
3.4
V
Output Voltage
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max
0.35
0.5
Output Voltage
VIL = Max, VIH = Min
V
IOL = 4 mA, VCC = Min
0.25
0.4
II
Input Current @ Max
VCC = Max, VI = 7V
0.1
mA
Input Voltage
VI = 10V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
−0.4
mA
Enable
VCC = Max, VI = 0.4V
−0.8
IOS
Short Circuit Output Current
VCC = Max (Note 7)
−20
−100
mA
ICC
Supply Current
VCC = Max (Note 8)
22
36
mA


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