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HCF4510B 数据表(PDF) 2 Page - STMicroelectronics |
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HCF4510B 数据表(HTML) 2 Page - STMicroelectronics |
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2 / 11 page  HCF4510B 2/11 IINPUT EQUIVALENT CIRCUIT PIN DESCRIPTION FUNCTIONAL DIAGRAM TRUTH TABLE X : Don’t Care PIN No SYMBOL NAME AND FUNCTION 1 PRESET ENABLE Preset Enable Input 4, 12, 13, 3 P1 to P4 Inputs 6, 11, 14, 2 Q1 to Q4 Outputs 15 CLOCK Clock Input 10 UP/DOWN Up/Down Control Input 5 CARRY-IN Carry Input 7 CARRY-OUT Carry Output 9 RESET Reset Input 8 VSS Negative Supply Voltage 16 VDD Positive Supply Voltage CL CARRY-IN (Cl) UP/DOWN PRESET ENABLE RESET ACTION X H X L L NO COUNT L H L L COUNT UP L L L L COUNT DOWN X X X H L PRESET XXXXH RESET |
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