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, V
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: 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
MIN NOM MAX MIN NOM MAX
V
CC
Supply voltage 4.5 5 5.5 4.5 5 5.5 V
V
IH
High-level input voltage 2 2 V
V
IL
Low-level input voltage 0.8 0.8 V
I
OH
High-level output current –2 –2 mA
I
OL
Low-level output current 20 20 mA
t
su
* Setup time, data before PLE↓ 2 2 ns
t
h
* Hold time, data after PLE↓ 4.5 4 ns
T
A
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)
SN54AS885 SN74AS885
MIN TYP
‡
MAX MIN TYP
‡
MAX
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 –1.2 V
V
OH
V
CC
= 4.5 V to 5.5 V, I
OH
= –2 mA V
CC
–2 V
CC
–2 V
V
OL
V
CC
= 4.5 V, I
OL
= 20 mA 0.35 0.5 0.35 0.5 V
I
I
V
CC
= 5.5 V, V
I
= 7 V 0.1 0.1 mA
L/A
40 40
IH
Others
CC
=
.
,
I
=
.
20 20
µ
L/A –4 –4
I
IL
P > QIN, P < QIN
V
CC
= 5.5 V, V
I
= 0.4 V
–2 –2
mA
P, Q, PLE –1 –1
I
O
§
V
CC
= 5.5 V, V
O
= 2.25 V –20 –112 –20 –112 mA
I
CC
V
CC
= 5.5 V, See Note 1 130 210 130 210 mA
‡
All typical values are at V
CC
= 5 V, T
A
= 25°C.
§
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
OS
.
NOTE 1: I
CC
is measured with all inputs high except L/A
, which is low.
