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MC74AC174 数据表(PDF) 2 Page - ON Semiconductor |
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MC74AC174 数据表(HTML) 2 Page - ON Semiconductor |
2 / 9 page MC74AC174, MC74ACT174 http://onsemi.com 2 Figure 2. Logic Symbol CP MR Q2 Q3 Q4 Q5 D0 D1 D2 D3 D4 D5 Q1 Q0 FUNCTIONAL DESCRIPTION The MC74AC174/74ACT174 consists of six edge−triggered D flip−flops with individual D inputs and Q outputs. The Clock (CP) and Master Reset (MR) are common to all flip−flops. Each D input’s state is transferred to the corresponding flip−flop’s output following the LOW−to−HIGHClock (CP) transition. A LOW input to the Master Reset (MR) will force all outputs LOW independent of Clock or Data inputs. The MC74AC174/ 74ACT174 is useful for applications where the true output only is required and the Clock and Master Reset are common to all storage elements. Figure 3. Logic Diagram CP MR Q5 D5 Q CD NOTE: This diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. CP D Q4 D4 Q CD CP D Q3 D3 Q CD CP D Q2 D2 Q CD CP D Q1 D1 Q CD CP D Q0 D0 Q CD CP D MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) −0.5 to +7.0 V VIN DC Input Voltage (Referenced to GND) −0.5 to VCC +0.5 V VOUT DC Output Voltage (Referenced to GND) −0.5 to VCC +0.5 V IIN DC Input Current, per Pin ±20 mA IOUT DC Output Sink/Source Current, per Pin ±50 mA ICC DC VCC or GND Current per Output Pin ±50 mA Tstg Storage Temperature −65 to +150 °C *Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recom- mended Operating Conditions. |
类似零件编号 - MC74AC174 |
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类似说明 - MC74AC174 |
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