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SN74AS885 Datasheet(Hoja de datos) 4 Page - Texas Instruments

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No. de Pieza. SN74AS885
Descripción  8-BIT MAGNITUDE COMPARATORS
Descarga  9 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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SN54AS885, SN74AS885
8-BIT MAGNITUDE COMPARATORS
SDAS236A – DECEMBER 1982 – REVISED JANUARY 1995
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54AS885
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74AS885
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
– 65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN54AS885
SN74AS885
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
2
V
VIL
Low-level input voltage
0.8
0.8
V
IOH
High-level output current
–2
–2
mA
IOL
Low-level output current
20
20
mA
tsu*
Setup time, data before PLE
2
2
ns
th*
Hold time, data after PLE
4.5
4
ns
TA
Operating free-air temperature
–55
125
0
70
°C
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS885
SN74AS885
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP‡
MAX
MIN
TYP‡
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
– 1.2
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = – 2 mA
VCC –2
VCC –2
V
VOL
VCC = 4.5 V,
IOL = 20 mA
0.35
0.5
0.35
0.5
V
II
VCC = 5.5 V,
VI = 7 V
0.1
0.1
mA
IIH
L/A
VCC =5 5V
VI =2 7V
40
40
µA
IIH
Others
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
L/A
–4
–4
IIL
P > QIN, P < QIN
VCC = 5.5 V,
VI = 0.4 V
–2
–2
mA
P, Q, PLE
–1
–1
IO§
VCC = 5.5 V,
VO = 2.25 V
–20
–112
–20
–112
mA
ICC
VCC = 5.5 V,
See Note 1
130
210
130
210
mA
‡ All typical values are at VCC = 5 V, TA = 25°C.
§ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
NOTE 1: ICC is measured with all inputs high except L/A, which is low.




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