June 1989
54LS08/DM54LS08/DM74LS08 Quad 2-Input AND Gates
General Description |
Features |
This device contains four independent gates each of which |
Y Alternate Military/Aerospace device (54LS08) is avail- |
performs the logic AND function. |
able. Contact a National Semiconductor Sales Office/ |
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Distributor for specifications. |
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Connection Diagram
Dual-In-Line Package
TL/F/6347 ± 1
Order Number 54LS08DMQB, 54LS08FMQB, 54LS08LMQB, DM54LS08J, DM54LS08W, DM74LS08M or DM74LS08N See NS Package Number E20A, J14A, M14A, N14A or W14B
Function Table
Y e AB
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Inputs |
Output |
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A |
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B |
Y |
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L |
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L |
L |
L |
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H |
L |
H |
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L |
L |
H |
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H |
H |
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H e High Logic Level
L e Low Logic Level
Gates AND Input-2 Quad 54LS08/DM54LS08/DM74LS08
C1995 National Semiconductor Corporation |
TL/F/6347 |
RRD-B30M105/Printed in U. S. A. |
Absolute Maximum Ratings (Note)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.
Supply Voltage |
7V |
Input Voltage |
7V |
Operating Free Air Temperature Range |
b55§C to a125§C |
DM54LS and 54LS |
|
DM74LS |
0§C to a70§C |
Storage Temperature Range |
b65§C to a150§C |
Note: 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'' table are not guaranteed at the absolute maximum ratings. The ``Recommended Operating Conditions'' table will define the conditions for actual device operation.
Recommended Operating Conditions
Symbol |
Parameter |
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DM54LS08 |
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DM74LS08 |
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Units |
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Min |
Nom |
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Max |
Min |
Nom |
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Max |
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VCC |
Supply Voltage |
4.5 |
5 |
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5.5 |
4.75 |
5 |
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5.25 |
V |
VIH |
High Level Input Voltage |
2 |
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2 |
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V |
VIL |
Low Level Input Voltage |
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0.7 |
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0.8 |
V |
IOH |
High Level Output Current |
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b0.4 |
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b0.4 |
mA |
IOL |
Low Level Output Current |
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4 |
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8 |
mA |
TA |
Free Air Operating Temperature |
b55 |
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125 |
0 |
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70 |
§C |
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol |
Parameter |
Conditions |
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Min |
Typ |
Max |
Units |
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(Note 1) |
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VI |
Input Clamp Voltage |
VCC e Min, II e b18 mA |
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b1.5 |
V |
VOH |
High Level Output |
VCC e Min, IOH e Max, |
DM54 |
2.5 |
3.4 |
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V |
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Voltage |
VIH e Min |
DM74 |
2.7 |
3.4 |
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VOL |
Low Level Output |
VCC e Min, IOL e Max, |
DM54 |
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0.25 |
0.4 |
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Voltage |
VIL e Max |
DM74 |
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0.35 |
0.5 |
V |
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IOL e 4 mA, VCC e Min |
DM74 |
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0.25 |
0.4 |
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II |
Input Current @ Max |
VCC e Max, VI e 7V |
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0.1 |
mA |
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Input Voltage |
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IIH |
High Level Input Current |
VCC e Max, VI e 2.7V |
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20 |
mA |
IIL |
Low Level Input Current |
VCC e Max, VI e 0.4V |
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b0.36 |
mA |
IOS |
Short Circuit |
VCC e Max |
DM54 |
b20 |
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b100 |
mA |
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Output Current |
(Note 2) |
DM74 |
b20 |
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b100 |
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ICCH |
Supply Current with |
VCC e Max |
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2.4 |
4.8 |
mA |
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Outputs High |
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ICCL |
Supply Current with |
VCC e Max |
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4.4 |
8.8 |
mA |
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Outputs Low |
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Switching Characteristics at VCC e 5V and TA e 25§C (See Section 1 for Test Waveforms and Output Load)
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RL e 2 kX |
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Symbol |
Parameter |
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CL e 15 pF |
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CL e 50 pF |
Units |
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Min |
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Max |
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Min |
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Max |
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tPLH |
Propagation Delay Time |
4 |
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13 |
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6 |
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18 |
ns |
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Low to High Level Output |
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tPHL |
Propagation Delay Time |
3 |
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11 |
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5 |
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18 |
ns |
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High to Low Level Output |
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Note 1: All typicals are at VCC e 5V, TA e 25§C.
Note 2: Not more than one output should be shorted at a time, and the duration should not exceed one second.
2