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HCF4027B 数据表(PDF) 2 Page - STMicroelectronics |
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HCF4027B 数据表(HTML) 2 Page - STMicroelectronics |
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2 / 9 page ![]() HCF4027B 2/9 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION FUNCTIONAL DIAGRAM TRUTH TABLE X : Don"t Care * : Level Change PIN No SYMBOL NAME AND FUNCTION 6, 5 J2, K2 Inputs 10,11 J1, K1 inputs 13, 3 CLOCK1, CLOCK2 Clock Inputs 12, 4 RESET1, RESET2 Reset Inputs 9, 7 SET1, SET2 Set Inputs 1, 2 Q2, Q2 Outputs 15, 14 Q1, Q1 Outputs 8 VSS Negative Supply Voltage 16 VDD Positive Supply Voltage PRESENT STATE CLOCK* NEXT STATE Inputs Output Outputs JK S R Q Q Q HX L L L H L XL L L H H L LX L L L L H XH L L H L H X X L L X NO CHANGE XX H L X X HL X XLH X X L H XX H H X X H H |
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