These devices provide eight, two-input buffers in each
package. All employ low-po wer-Schottky TTL technology.
One of the two in puts to each buffer is used as a control
line to gate the output into the high-im pedan ce state, whi le
the other input passes the data through the buffer. The
DM81LS95A and DM81LS97A present true data at the outputs, while the DM81LS96A is inverting. On the
DM81LS95A and DM81LS96A versions, all eigh t 3-STATE
enable lines are common, w ith access through a 2-input
NOR gate. On the DM81LS97A vers ion, four buffers are
enabled from one commo n line, and the other four buffers
are enabled form anoth er common line. In all cases the
outputs are placed in the 3-STATE condition by applying a
high logic level to the enable pins.
Features
■ Typical power dissipation
DM81LS95A, DM81LS97A80 mW
DM81LS96A65 mW
Supply Voltage7V
Input Voltage7V
Operating Free Air Temperature Range0°C to +70°C
Storage Temperature Range−65°C to +150°C
Note 2: The Absolute Maximum Ratings are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The Recommende d Operating Con ditions table will def ine the conditions
for actual device operation.
Recommended Operating Conditions
SymbolParameterMinNomMaxUnits
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage4.7555.25V
HIGH Level Input Voltage2V
LOW Level In put Voltage0.8V
HIGH Level Output Current−5.2mA
LOW Level Ou tput Current24mA
Free Air Operating Temperature070°C
DM81LS95A • DM81LS96A • DM81LS97A
3www.fairchildsemi.com
Page 4
DC Electrical Characteristics DM81LS95A and DM81LS97A
over recommended operating free air temperature range (unless otherwise noted)
SymbolParameterConditions Min
V
I
V
OH
V
OL
I
I
I
IH
I
IL
I
OZH
I
OZL
DM81LS95A • DM81LS96A • DM81LS97A
I
OS
I
CC
Note 3: All typicals are at VCC = 5V, TA = 25°C.
Note 4: Both G
Note 5: Both G
Note 6: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Input Clamp VoltageVCC = Min, II =−18 mA−1.5V
HIGH Level Output VoltageVCC = Min, IOH = Max
VIL = Max, VIH = Min
LOW Level Output VoltageVCC = Min, IOL = Max
IOL = 12 mA, VCC = Min0.4
Input Current @ MaxVCC = Max, VI = 7V
Input Voltage
HIGH Level Input CurrentVCC = Max, VI = 2.7V20µA
LOW Level Input CurrentVCC = MaxVI = 0.5VA (Note 4)−20
VI = 0.4VA (Note 5)−50
G−50
Off-State Output CurrentVCC = Max, VO = 2.4V
Voltage Applied
Off-State Output CurrentVCC = Max, VO = 0.4V
Voltage Applied
Short CircuitVCC = Max
Output Current(Note 6)
Supply CurrentVCC = Max (Note 4)1626mA
inputs are at 2V.
inputs are at 0.4V.
Typ
(Note 3)
MaxUnits
2.7V
0.5
0.1mA
µA
20µAwith HIGH Level OutputVIH = Min, VIL = Max
−20µAwith LOW Level OutputVIH = Min, VIL = Max
−20−100mA
VIOL = Max, VIH = Min
AC Electrical Characteristics DM81LS95A and DM81LS97A
VCC = 5V, TA = 25°C
SymbolParameter
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
t
PZH
Output Enable Time
to HIGH Level Output
t
PZL
Output Enable Time
to LOW Level Output
t
PHZ
Output Disable Time
from HIGH Level Output (Note 7)
t
PLZ
Output Disable Time
from LOW Level Output (Note 7)
Note 7: CL = 5 pF .
www.fairchildsemi.com4
MinMaxMinMax
RL = 667 Ω
UnitsCL = 50 pFCL = 150 pF
1625ns
2840ns
2530ns
3042ns
20ns
27ns
Page 5
DC Electrical Characteristics DM81LS96A
over recommended operating free air temperature range (unless otherwise noted)
SymbolParameterConditions Min
V
I
V
OH
V
OL
I
I
I
IH
I
IL
I
OZH
I
OZL
I
OS
I
CC
Note 8: All typicals are at VCC = 5V, TA = 25°C.
Note 9: Both G
Note 10: Both G
Note 11: Not more than one output should be shorted at a t im e, and the duration shou ld not exceed one second.
Input Clamp VoltageVCC = Min, II =−18 mA−1.5V
HIGH Level Output VoltageVCC = Min, IOH = Max
VIL = Max, VIH = Min
LOW Level Output VoltageVCC = Min, IOL = Max
IOL = 12 mA, VCC = Min0.4
Input Current @ MaxVCC = Max, VI = 7V
Input Voltage
HIGH Level Input CurrentVCC = Max, VI = 2.7V20µA
LOW Level Input CurrentVCC = MaxVI = 0.5VA (Note 9)−20
VI = 0.4VA (Note 10)−50
G
Off-State Output CurrentVCC = Max, VO = 2.4V
Voltage Applied
Off-State Output CurrentVCC = Max, VO = 0.4V
Voltage Applied
Short CircuitVCC = Max
Output Current(Note 11)
Supply CurrentVCC = Max (Note 10)1321mA
inputs are at 2V.
inputs are at 0.4V.
Typ
(Note 8)
MaxUnits
2.7V
0.5
0.1mA
µA
−50
20µAwith HIGH Level OutputVIH = Min, VIL = Max
−20µAwith LOW Level OutputVIH = Min, VIL = Max
−20−100mA
DM81LS95A • DM81LS96A • DM81LS97A
VIOL = Max, VIH = Min
AC Electrical Characteristics DM81LS96A
VCC = 5V, TA = 25°C
SymbolParameter
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Note 12: CL = 5 pF.
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Output Enable Time
to HIGH Level Output
Output Enable Time
to LOW Level Output
Output Disable Time
from HIGH Level Output (Note 12)
Output Disable Time
from LOW Level Output (Note 12)
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent license s are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support de vices o r syst ems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provide d in the labe l ing, can be re asonably expected to result in a significant injury to the
user.
Package Number N20A
2. A critica l compo nent in any componen t of a life s uppor t
device or system whose failu re to perform can b e reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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