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DM74S174 数据表(PDF) 4 Page - Fairchild Semiconductor |
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DM74S174 数据表(HTML) 4 Page - Fairchild Semiconductor |
4 / 5 page www.fairchildsemi.com 4 Electrical Characteristics over recommended operating free air temperature (unless otherwise noted) Note 5: All typicals are at VCC = 5V, TA = 25°C. Note 6: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 7: With all outputs OPEN and 4.5V applied to all DATA and CLEAR inputs, ICC is measured after a momentary ground, then 4.5V applied to the CLOCK input. Switching Characteristics at VCC = 5V and TA = 25°C Symbol Parameter Conditions Min Typ Max Units (Note 5) VI Input Clamp Voltage VCC = Min, II = −18 mA −1.2 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 0.5 V Output Voltage VIH = Min, VIL = Max II Input Current @ Max Input Voltage VCC = Max, VI = 5.5V 1 mA IIH HIGH Level Input Current VCC = Max, VI = 2.7V 50 µA IIL LOW Level Input Current VCC = Max, VI = 0.5V −2mA IOS Short Circuit Output Current VCC = Max (Note 6) −40 −100 mA ICC Supply Current (DM74S174) VCC = Max (Note 7) 90 144 mA ICC Supply Current (DM74S175) VCC = Max (Note 7) 60 96 mA RL = 280Ω Symbol Parameter From (Input) CL = 15 pF CL = 50 pF Units To (Output) Min Max Min Max fMAX Maximum Clock Frequency 75 65 MHz tPLH Propagation Delay Time Clock to Output 12 15 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time Clock to Output 17 21 ns HIGH-to-LOW Level Output tPLH Propagation Delay Time Clear to Q 15 18 ns LOW-to-HIGH Level Output (DM74S175 Only) tPHL Propagation Delay Time Clear to Q 22 23 ns HIGH-to-LOW Level Output |
类似零件编号 - DM74S174 |
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类似说明 - DM74S174 |
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