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DM74LS373N 数据表(PDF) 4 Page - National Semiconductor (TI) |
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DM74LS373N 数据表(HTML) 4 Page - National Semiconductor (TI) |
4 / 8 page ‘LS373 Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load) From RL e 667X (Input) Symbol Parameter CL e 45 pF CL e 150 pF Units To Min Max Min Max (Output) tPLH Propagation Delay Data Time Low to High to 18 26 ns Level Output Q tPHL Propagation Delay Data Time High to Low to 18 27 ns Level Output Q tPLH Propagation Delay Enable Time Low to High to 30 38 ns Level Output Q tPHL Propagation Delay Enable Time High to Low to 30 36 ns Level Output Q tPZH Output Enable Output Time to High Control 28 36 ns Level Output to Any Q tPZL Output Enable Output Time to Low Control 36 50 ns Level Output to Any Q tPHZ Output Disable Output Time from High Control 20 ns Level Output (Note 3) to Any Q tPLZ Output Disable Output Time from Low Control 25 ns Level Output (Note 3) to Any Q 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 CL e 5 pF Recommended Operating Conditions Symbol Parameter DM54LS374 DM74LS374 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 IOH High Level Output Current b 1 b 26 mA IOL Low Level Output Current 12 24 mA tW Pulse Width Clock High 15 15 ns (Note 4) Clock Low 15 15 tSU Data Setup Time (Notes14) 20 u 20 u ns tH Data Hold Time (Notes14) 1 u 1 u ns TA Free Air Operating Temperature b 55 125 0 70 C Note 1 The symbol ( u) indicates the rising edge of the clock pulse is used for reference Note 4 TA e 25 C and VCC e 5V 4 |
类似零件编号 - DM74LS373N |
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类似说明 - DM74LS373N |
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