Datasheet
SDAS163B − DECEMBER 1982 − REVISED NOVEMBER 2004
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54ALS563B SN74ALS563B
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 −1 −2.6 mA
I
OL
Low-level output current 12 24 mA
t
w
Pulse duration, LE high 15 15 ns
t
su
Setup time, data before LE↓ 20 10 ns
t
h
Hold time, data after LE↓ 12 10 ns
T
A
Operating free-air temperature −55 125 0 70 °C
NOTE 3: All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS563B SN74ALS563B
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 −0.1 −0.1 mA
I
O
‡
V
CC
= 5.5 V, V
O
= 2.25 V −20 −112 −30 −112 mA
Outputs high 10 17 10 17
I
CC
V
CC
= 5.5 V
Outputs low 16 26 16 26
mA
I
CC
V
CC
= 5.5 V
Outputs disabled 17 29 17 29
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
.