Datasheet
SCAS499A − DECEMBER 1986 − REVISED APRIL 1996
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
recommended operating conditions
MIN NOM MAX UNIT
V
CC
Supply voltage 3 5 5.5 V
V
CC
= 3 V 2.1
V
IH
High-level input voltage
V
CC
= 4.5 V
3.15
V
V
IH
High-level input voltage
V
CC
= 5.5 V 3.85
V
V
CC
= 3 V 0.9
V
IL
Low-level input voltage
V
CC
= 4.5 V
1.35
V
V
IL
Low-level input voltage
V
CC
= 5.5 V 1.65
V
V
I
Input voltage 0 V
CC
V
V
O
Output voltage 0 V
CC
V
V
CC
= 3 V −4
I
OH
High-level output current
V
CC
= 4.5 V
−24
mA
I
OH
High-level output current
V
CC
= 5.5 V −24
mA
V
CC
= 3 V 12
I
OL
Low-level output current
V
CC
= 4.5 V
24
mA
I
OL
Low-level output current
V
CC
= 5.5 V 24
mA
∆t/∆v Input transition rise or fall rate 0 10 ns/V
T
A
Operating free-air temperature −40 85 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
T
A
= 25°C
MIN
MAX
UNIT
PARAMETER
TEST CONDITIONS
V
CC
MIN TYP MAX
MIN
MAX
UNIT
3 V 2.9 2.9
I
OH
= −50 µA
4.5 V 4.4 4.4
I
OH
= −50 µA
5.5 V 5.4 5.4
V
OH
I
OH
= −4 mA 3 V 2.58 2.48
V
V
OH
I
OH
= −24 mA
4.5 V 3.94 3.8
V
I
OH
= −24 mA
5.5 V 4.94 4.8
I
OH
= −75 mA
†
5.5 V 3.85
3 V 0.1 0.1
I
OL
= 50 µA
4.5 V 0.1 0.1
I
OL
= 50 µA
5.5 V 0.1 0.1
V
OL
I
OL
= 12 mA 3 V 0.36 0.44
V
V
OL
I
OL
= 24 mA
4.5 V 0.36 0.44
V
I
OL
= 24 mA
5.5 V 0.36 0.44
I
OL
= 75 mA
†
5.5 V 1.65
I
I
V
I
= V
CC
or GND 5.5 V ±0.1 ±1 µA
I
CC
V
I
= V
CC
or GND, I
O
= 0 5.5 V 4 40 µA
C
i
V
I
= V
CC
or GND 5 V 3.5 pF
†
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.