Datasheet
SDAS036D − APRIL 1982 − REVISED AUGUST 1995
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS873B SN74ALS873B
UNIT
PARAMETER
TEST CONDITIONS
MIN TYP
†
MAX MIN TYP
†
MAX
UNIT
V
IK
V
CC
= 4.5 V, I
I
= −18 mA −1.2 −1.2 V
V
CC
= 4.5 V to 5.5 V, I
OH
= −0.4 mA V
CC
−2 V
CC
−2
V
OH
V
CC
= 4.5 V
I
OH
= −1 mA 2.4 3.3
V
V
OH
V
CC
= 4.5 V
I
OH
= −2.6 mA 2.4 3.2
V
V
OL
V
CC
= 4.5 V
I
OL
= 12 mA 0.25 0.4 0.25 0.4
V
V
OL
V
CC
= 4.5 V
I
OL
= 24 mA 0.35 0.5
V
I
OZH
V
CC
= 5.5 V, V
O
= 2.7 V 20 20 µA
I
OZL
V
CC
= 5.5 V, V
O
= 0.4 V −20 −20 µA
I
I
V
CC
= 5.5 V, V
I
= 7 V 0.1 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 20 20 µA
I
IL
V
CC
= 5.5 V, V
I
= 0.4 V − 0.2 − 0.2 mA
I
O
‡
V
CC
= 5.5 V, V
O
= 2.25 V −20 −112 −30 −112 mA
Outputs high 11 21 11 21
I
CC
V
CC
= 5.5 V
Outputs low 16 29 16 29
mA
I
CC
V
CC
= 5.5 V
Outputs disabled 20 31 20 31
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
.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN54ALS873B SN74ALS873B
UNIT
MIN MAX MIN MAX
UNIT
t
w
Pulse duration
CLR low 15 15
ns
t
w
Pulse duration
LE high
10 10
ns
t
su
Setup time, data before LE↓
10 10 ns
t
h
Hold time, data after LE↓ 7 7 ns