전자부품 데이터시트 검색엔진 |
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DM74LS164N 데이터시트(PDF) 3 Page - Fairchild Semiconductor |
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DM74LS164N 데이터시트(HTML) 3 Page - Fairchild Semiconductor |
3 / 5 page 3 www.fairchildsemi.com Absolute Maximum Ratings(Note 1) Note 1: 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 tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” tables will define the conditions for actual device operation. Recommended Operating Conditions Note 2: TA = 25°C and VCC = 5V. Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Note 3: All typicals are at VCC = 5V, TA = 25°C. Note 4: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 5: ICC is measured with all outputs OPEN, the SERIAL input grounded, the CLOCK input at 2.4V, and a momentary ground, then 4.5V, applied to the CLEAR input. Switching Characteristics at VCC = 5V and TA = 25°C Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C 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 2) 0 25 MHz tW Pulse Width Clock 20 ns (Note 2) Clear 20 tSU Data Setup Time (Note 2) 17 ns tH Data Hold Time (Note 2) 5 ns tREL Clear Release Time (Note 2) 30 ns TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ (Note 3) 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 Input Voltage VCC = Max, VI = 7V 0.1 mA IIH HIGH Level Input Current VCC = Max, VI = 2.7V 20 µA IIL LOW Level Input Current VCC = Max, VI = 0.4V −0.4 mA IOS Short Circuit Output Current VCC = Max (Note 4) −20 −100 mA ICC Supply Current VCC = Max (Note 5) 16 27 mA From (Input) RL = 2 kΩ Symbol Parameter To (Output) CL = 15 pF CL = 50 pF Units MinMax MinMax fMAX Maximum Clock Frequency 25 MHz tPLH Propagation Delay Time Clock to Output 27 30 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time Clock to Output 32 40 ns HIGH-to-LOW Level Output tPHL Propagation Delay Time Clear to Output 36 45 ns HIGH-to-LOW Level Output |
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