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DM74LS161AM 数据表(PDF) 7 Page - Fairchild Semiconductor |
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DM74LS161AM 数据表(HTML) 7 Page - Fairchild Semiconductor |
7 / 10 page 7 www.fairchildsemi.com DM74LS163A Recommended Operating Conditions Note 8: CL = 15 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V. Note 9: CL = 50 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V. DM74LS163A Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Note 10: All typicals are at VCC = 5V, TA = 25°C. Note 11: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 12: ICCH is measured with the load HIGH, then again with the load LOW, with all other inputs HIGH and all outputs OPEN. Note 13: ICCL is measured with the clock input HIGH, then again with the clock input LOW, with all other inputs LOW and all outputs OPEN. Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.75 5 5.25 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 8 mA fCLK Clock Frequency (Note 8) 0 25 MHz Clock Frequency (Note 9) 0 20 MHz tW Pulse Width Clock 20 6 ns (Note 8) Clear 20 9 Pulse Width Clock 25 ns (Note 9) Clear 25 tSU Setup Time Data 20 8 (Note 8) Enable P 25 17 ns Load 25 15 Setup Time Data 20 (Note 9) Enable P 30 ns Load 30 tH Hold Time Data 0 −3 ns (Note 8) Others 0 −3 Hold Time Data 5 ns (Note 9) Others 5 tREL Clear Release Time (Note 8) 20 ns Clear Release Time (Note 9) 25 ns TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ (Note 10) Max Units VI Input Clamp Voltage VCC = Min, II = −18 mA −1.5 V VOH HIGH Level VCC = Min, IOH = Max 2.7 3.4 V Output Voltage VIL = Max, VIH = Min VOL LOW Level VCC = Min, IOL = Max 0.35 0.5 Output Voltage VIL = Max, VIH = Min V IOL = 4 mA, VCC = Min 0.25 0.4 II Input Current @ Max VCC = Max Enable T 0.2 Input Voltage VI = 7V Clock, Clear 0.2 mA Load 0.2 Others 0.1 IIH HIGH Level VCC = Max Enable T 40 Input Current VI = 2.7V Load 40 µA Clock, Clear 40 Others 20 IIL LOW Level VCC = Max Enable T −0.8 Input Current VI = 0.4V Clock, Clear −0.8 mA Load −0.8 Others −0.4 IOS Short Circuit Output Current VCC = Max (Note 11) −20 −100 mA ICCH Supply Current with Outputs HIGH VCC = Max (Note 12) 18 31 mA ICCL Supply Current with Outputs LOW VCC = Max (Note 13) 18 32 mA |
类似零件编号 - DM74LS161AM |
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类似说明 - DM74LS161AM |
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