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74VHC573T 数据表(PDF) 2 Page - STMicroelectronics |
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74VHC573T 数据表(HTML) 2 Page - STMicroelectronics |
2 / 14 page 74VHC573 2/14 Figure 2: Input Equivalent Circuit Table 2: Pin Description Table 3: Truth Table X : Don’t Care Z : High Impedance * : Q Outputs are Latched at the time when the LE input is taken low logic level. Figure 3: Logic Diagram This logic diagram has not be used to estimate propagation delays PIN N° SYMBOL NAME AND FUNCTION 1OE 3 State Output Enable Input (Active LOW) 2, 3, 4, 5, 6, 7, 8, 9 D0 to D7 Data Inputs 12, 13, 14, 15, 16, 17, 18, 19 Q0 to Q7 3-State Latch Outputs 11 LE Latch Enable Input 10 GND Ground (0V) 20 VCC Positive Supply Voltage INPUTS OUTPUT OE LE D Q HX X Z LL X NO CHANGE* LHL L L HHH |
类似零件编号 - 74VHC573T |
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类似说明 - 74VHC573T |
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