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M54HC273 데이터시트(PDF) 2 Page - STMicroelectronics |
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M54HC273 데이터시트(HTML) 2 Page - STMicroelectronics |
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2 / 10 page ![]() M54HC273 2/10 IEC LOGIC SYMBOLS INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION TRUTH TABLE X : Don’t Care PIN N° SYMBOL NAME AND FUNCTION 1 CLEAR Master Reset Input (Active LOW) 2, 5, 6, 9, 12, 15, 16, 19 Q0 to Q7 Flip Flop Outputs 3, 4, 7, 8, 13, 14, 17, 18 D0 to D7 Data Inputs 11 CLOCK Clock Input (LOW to HIGH, Edge Triggered) 10 GND Ground (0V) 20 VCC Positive Supply Voltage INPUTS OUTPUTS FUNCTION CLEAR CLOCK D Q L X X L CLEAR HL L HH H H X Qn NO CHANGE |
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