전자부품 데이터시트 검색엔진 |
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DM54LS156W 데이터시트(PDF) 3 Page - National Semiconductor (TI) |
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DM54LS156W 데이터시트(HTML) 3 Page - National Semiconductor (TI) |
3 / 8 page ’LS155 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 A B C2 G1 18 22 ns Low to High Level Output or G2 to Y tPHL Propagation Delay Time A B C2 G1 27 35 ns High to Low Level Output or G2 to Y tPLH Propagation Delay Time A or B 18 24 ns Low to High Level Output to Y tPHL Propagation Delay Time A or B 27 35 ns High to Low Level Output to Y tPLH Propagation Delay Time C1 20 24 ns Low to High Level Output to Y tPHL Propagation Delay Time C1 27 35 ns High to Low Level Output to Y Recommended Operating Conditions Symbol Parameter DM54LS156 DM74LS156 Units Min Nom Max Min Nom Max VCC Supply Voltage 45 5 55 475 5 525 V VIH High Level Input Voltage 2 2 V VIL Low Level Input Voltage 07 08 V VOH High Level Output Voltage 55 55 V IOL Low Level Output Current 4 8 mA TA Free Air Operating Temperature b 55 125 0 70 C ’LS156 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 ICEX High Level Output VCC e Min VO e 55V 100 m A Current VIL e Max VIH e Min 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 ICC Supply Current VCC e Max (Note 2) 61 10 mA Note 1 All typicals are at VCC e 5V TA e 25 C Note 2 ICC is measured with all outputs open A B and C1 inputs at 45V and C2 G1 and G2 grounded 3 |
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