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DM54LS139E 数据表(PDF) 4 Page - National Semiconductor (TI) |
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DM54LS139E 数据表(HTML) 4 Page - National Semiconductor (TI) |
4 / 8 page ’LS139 Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units (Note 1) VI Input Clamp Voltage VCC e Min II eb18 mA b 15 V VOH High Level Output VCC e Min IOH e Max DM54 25 34 V Voltage VIL e Max VIH e Min DM74 27 34 VOL Low Level Output VCC e Min IOL e Max DM54 025 04 Voltage VIL e Max VIH e Min DM74 035 05 V IOL e 4 mA VCC e Min DM74 025 04 II Input Current Max VCC e Max VI e 7V 01 mA Input Voltage IIH High Level Input Current VCC e Max VI e 27V 20 m A IIL Low Level Input Current VCC e Max VI e 04V b 036 mA IOS Short Circuit VCC e Max DM54 b 20 b 100 mA Output Current (Note 2) DM74 b 20 b 100 ICC Supply Current VCC e Max (Note 3) 68 11 mA 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 Note 3 ICC is measured with all outputs enabled and open ’LS139 Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load) From (Input) RL e 2kX Symbol Parameter To (Output) CL e 15 pF CL e 50 pF Units Min Max Min Max tPLH Propagation Delay Time Select to 18 27 ns Low to High Level Output Output tPHL Propagation Delay Time Select to 27 40 ns High to Low Level Output Output tPLH Propagation Delay Time Enable to 18 27 ns Low to High Level Output Output tPHL Propagation Delay Time Enable to 24 40 ns High to Low Level Output Output Function Tables LS138 Inputs Outputs Enable Select G1 G2 C B AYOY1Y2Y3Y4Y5Y6Y7 X H X X X H H HHHHHH L X X X X H H HHHHHH H L L L L L H HHHHHH H L L L H H L H HHHHH H L L H L H H L H HHHH H L L H H H HH L H HHH H L H L L H HHH L HHH H L H L H H H HHH L HH H L H H L H HHHHH L H H L H H H H H HHHHH L G2 e G2A a G2B H e High Level L e Low Level X e Don’t Care LS139 Inputs Outputs Enable Select G B AY0Y1Y2Y3 H X X HHHH L L L L HHH L L H HLH H L H L H HLH L H H HHH L H e High Level L e Low Level X e Don’t Care 4 |
类似零件编号 - DM54LS139E |
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类似说明 - DM54LS139E |
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