Datasheet

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SDAS211C − DECEMBER 1982 − REVISED JULY 1996
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
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
: SN54ALS193A −55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS193A 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
−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
SN54ALS193A SN74ALS193A
UNIT
MIN NOM MAX MIN NOM MAX
UNIT
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 0.7 0.8 V
I
OH
High-level output current −0.4 −0.4 mA
I
OL
Low-level output current 4 8 mA
f
clock
Clock frequency 0 20 0 30 MHz
CLR high 10 10
t
w
Pulse duration
LOAD
low 25 20
ns
t
w
Pulse duration
UP or DOWN high or low 30 16.5
ns
Data before LOAD↑ 25 20
t
su
Setup time
CLR inactive before UP or DOWN
20 20
ns
t
su
Setup time
LOAD inactive before UP or DOWN 20 20
ns
Data after LOAD↑ 5 5
t
h
Hold time
UP high after DOWN↑
5 0
ns
t
h
Hold time
DOWN high after UP↑ 5 0
ns
T
A
Operating free-air temperature −55 125 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS193A SN74ALS193A
UNIT
PARAMETER
TEST CONDITIONS
MIN TYP
‡
MAX MIN TYP
‡
MAX
UNIT
V
IK
V
CC
= 4.5 V, I
I
= −18 mA −1.5 −1.5 V
V
OH
V
CC
= 4.5 V to 5.5 V, I
OH
= −0.4 mA V
CC
−2 V
CC
−2 V
V
OL
V
CC
= 4.5 V
I
OL
= 4 mA 0.25 0.4 0.25 0.4
V
V
OL
V
CC
= 4.5 V
I
OL
= 8 mA 0.35 0.5
V
I
I
V
CC
= 5.5 V, V
I
= 7 V 0.1 0.35 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 20 20 µA
I
IL
UP or DOWN
V
CC
= 5.5 V,
V
I
= 0.4 V
−0.2 −0.2
mA
I
IL
All others
V
CC
= 5.5 V, V
I
= 0.4 V
−0.1 −0.1
mA
I
O
§
V
CC
= 5.5 V, V
O
= 2.25 V −20 −112 −30 −112 mA
I
CC
V
CC
= 5.5 V, See Note 1 12 22 12 22 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 the clear and load inputs grounded and all other inputs at 4.5 V.