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SN74ALS666NT Fiches technique(PDF) 5 Page - Texas Instruments

No de pièce SN74ALS666NT
Description  8-BIT D-TYPE TRANSPARENT READ-BACK LATCHES WITH 3-STATE OUTPUTS
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

SN74ALS666NT Fiches technique(HTML) 5 Page - Texas Instruments

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SN74ALS666, SN74ALS667
8-BIT D-TYPE TRANSPARENT READ-BACK LATCHES
WITH 3-STATE OUTPUTS
SDAS227A – JUNE 1984 – REVISED JANUARY 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN74ALS666
SN74ALS667
UNIT
MIN
TYP†
MAX
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
V
V
All outputs
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC –2
V
VOH
Q or Q
VCC = 4.5 V,
IOH = – 2.6 mA
2.4
3.2
V
Dinputs
VCC =4 5V
IOL = 4 mA
0.25
0.4
VOL
D inputs
VCC = 4.5 V
IOL = 8 mA
0.35
0.5
V
VOL
QorQ
VCC =4 5V
IOL = 12 mA
0.25
0.4
V
Q or Q
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
IOZH
Q or Q
VCC = 5.5 V,
VO = 2.7 V
20
µA
IOZL
Q or Q
VCC = 5.5 V,
VO = 0.4 V
–20
µA
II
D inputs
VCC =5 5V
VI = 5.5 V
0.1
mA
II
All others
VCC = 5.5 V
VI = 7 V
0.1
mA
IIH
D inputs‡
VCC =5 5V
VI =2 7V
20
µA
IIH
All others
VCC = 5.5 V,
VI = 2.7 V
20
µA
I
D inputs‡
VCC =5 5V
VI =0 4V
– 0.1
mA
IIL
All others
VCC = 5.5 V,
VI = 0.4 V
– 0.1
mA
IO§
VCC = 5.5 V,
VO = 2.25 V
–30
–112
mA
V5 5 V
Q outputs high
25
50
SN74ALS666
VCC = 5.5 V,
OERB high
Q outputs low
40
73
ICC
OERB high
Q outputs disabled
30
55
mA
ICC
V5 5 V
Q outputs high
25
50
mA
SN74ALS667
VCC = 5.5 V,
OERB high
Q outputs low
45
79
OERB high
Q outputs disabled
30
60
† All typical values are at VCC = 5 V, TA = 25°C.
‡ For I/O ports (QA through QH), the parameters IIH and IIL include the off-state output current.
§ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.


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