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DM54161 数据表(PDF) 3 Page - National Semiconductor (TI) |
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DM54161 数据表(HTML) 3 Page - National Semiconductor (TI) |
3 / 10 page Electrical Characteristics Over recommended operating free air temperature range (unless otherwise noted) (Continued) Symbol Parameter Conditions Min Typ Max Units (Note 1) IOS Short Circuit VCC e Max DM54 b 20 b 57 mA Output Current (Note 2) DM74 b 20 b 57 ICCH Supply Current VCC e Max DM54 85 mA with Outputs High (Note 3) DM74 59 94 ICCL Supply Current VCC e Max DM54 91 mA with Outputs Low (Note 4) DM74 63 101 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 Note 3 ICCH is measured with the LOAD high then again with the LOAD low with all inputs high and all outputs open Note 4 ICCL is measured with the CLOCK high then again with the CLOCK input low with all inputs low and all outputs open Note 5 Applies to 163 which has synchronous clear inputs Note 6 TA e 25 C and VCC e 5V Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load) Symbol Parameter From (Input) RL e 400X CL e 15 pF Units To (Output) Min Max fMAX Maximum Clock 25 MHz Frequency tPLH Propagation Delay Time Clock to 35 ns Low to High Level Output Ripple Carry tPHL Propagation Delay Time Clock to 35 ns High to Low Level Output Ripple Carry tPLH Propagation Delay Time Clock 20 ns Low to High Level Output (Load High) to Q tPHL Propagation Delay Time Clock 23 ns High to Low Level Output (Load High) to Q tPLH Propagation Delay Time Clock 25 ns Low to High Level Output (Load Low) to Q tPHL Propagation Delay Time Clock 29 ns High to Low Level Output (Load Low) to Q tPLH Propagation Delay Time Enable T to 16 ns Low to High Level Output Ripple Carry tPHL Propagation Delay Time Enable T to 16 ns High to Low Level Output Ripple Carry tPHL Propagation Delay Time Clear (Note 7) 38 ns High to Low Level Output to Q Note 7 Propagation delay for clearing is measured from the clear input for the 161 or from the clock input transition for the 163 3 |
类似零件编号 - DM54161 |
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类似说明 - DM54161 |
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