Philips Semiconductors
Product specification
4-bit binary counter
74ALS161B/74ALS163B
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL
PARAMETER
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
UNIT
V
V
I
Supply voltage
Input voltage
Input current
CC
V
IN
IN
V
mA
V
V
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
–0.5 to V
OUT
OUT
CC
I
16
mA
°C
°C
T
amb
0 to +70
T
stg
–65 to +150
RECOMMENDED OPERATING CONDITIONS
LIMITS
NOM
5.0
SYMBOL
PARAMETER
UNIT
MIN
4.5
MAX
V
I
Supply voltage
5.5
V
V
CC
V
IH
High-level input voltage
Low-level input voltage
Input clamp current
2.0
V
IL
IK
0.8
–18
–0.4
8
V
mA
mA
mA
°C
I
High-level output current
Low-level output current
Operating free-air temperature range
OH
I
OL
T
amb
0
+70
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
1
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
2
MIN
TYP
MAX
V
V
= ±10%, V = MAX,
= MIN
CC
IH
IL
V
OH
High-level output voltage
I
= –0.4mA
V
CC
– 2
V
OH
I
I
= 4mA
= 8mA
0.25
0.35
0.40
0.50
–1.5
0.1
V
OL
V
V
= MIN, V = MAX,
IL
= MIN
CC
IH
V
Low-level output voltage
OL
V
OL
V
Input clamp voltage
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= MIN, I = I
IK
–0.73
V
IK
I
I
Input current at minimum input voltage
High-level input current
= MAX, V = 7.0V
mA
µA
mA
mA
mA
I
I
I
IH
= MAX, V = 2.7V
20
I
I
Low-level input current
= MAX, V = 0.4V
–0.1
–112
21
IL
I
3
I
Output current
= MAX, V = 2.25V
–30
O
O
I
Supply current (total)
= MAX
10
CC
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V = 5V, T = 25°C.
CC
amb
3. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
7
1991 Feb 08