Datasheet
SCBS059B − MARCH 1989 − REVISED NOVEMBER 1993
2−5
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 4.5 5 5.5 V
V
bat
Supply voltage 4.5 5 5.5 V
V
IH
High-level input voltage 2 V
V
IL
Low-level input voltage 0.8 V
I
IK
Input clamp current −18 mA
I
OH
High-level output current −400 µA
I
OL
Low-level output current
Y outputs 8
mA
I
OL
Low-level output current
VS outputs
20
mA
t
t
Input transition time 0 10 ns/V
T
A
Operating free-air temperature 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
IK
V
CC
= 4.5 V, I
I
= −18 mA −1.2 V
V
bat
= V
CC
= 4.5 V
I
OH
= − 20 µA 4.4
V
OH
V
bat
= V
CC
= 4.5 V
I
OH
= − 400 µA 3.5
V
V
OH
V
bat
= 2 V, V
CC
= 0, I
OH
= − 50 µA 1.8
V
All except VS
V
bat
= V
CC
= 4.5 V
I
OL
= 4 mA 0.4
V
OL
All except VS V
bat
= V
CC
= 4.5 V
I
OL
= 8 mA 0.5
V
V
OL
VS V
bat
= V
CC
= 4.5 V, I
OL
= 20 mA 1
V
V
T
‡
3.65 V
I
I
V
bat
= V
CC
= 5.5 V, V
I
= 5.5 V 100 µA
I
IH
V
bat
= V
CC
= 5.5 V, V
I
= 2.7 V ± 20 µA
I
IL
V
bat
= V
CC
= 5.5 V, V
I
= 0.5 V ± 20 µA
I
OH
VS V
bat
= 4.5 V, V
CC
= 0 1 µA
I
O
§
V
bat
= V
CC
= 5.5 V, V
O
= 2.25 V −30 −200 mA
I
CC
V
bat
= V
CC
= 5.5 V
Outputs high 3
mA
I
CC
V
bat
= V
CC
= 5.5 V
Outputs low 3
mA
V
bat
= 2.5 V, V
CC
= 0 1 10
A
I
bat
V
bat
= V
CC
= 5.5 V
Outputs high 20
µA
I
bat
V
bat
= V
CC
= 5.5 V
Outputs low 3 mA
C
i
V
bat
= V
CC
= 5 V, V
I
= 0 or 3 V 4 pF
C
o
Any Y
V
bat
= V
CC
= 0
6.5
pF
C
o
VS
V
bat
= V
CC
= 0
5
pF
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
‡
This value represents the V
CC
monitor threshold voltage. Typical range is from 3.5 V to 3.8 V.
§
This output condition has been chosen to produce a current that closely approximates one half of the short-circuit output current, I
OS
. Not more
than one output should be tested at a time, and the duration of the test should not exceed one second.