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M54HC154 Scheda tecnica(PDF) 2 Page - STMicroelectronics |
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M54HC154 Scheda tecnica(HTML) 2 Page - STMicroelectronics |
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2 / 9 page ![]() M54HC154 2/9 IEC LOGIC SYMBOLS INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION TRUTH TABLE X : Don’t Care PIN N° SYMBOL NAME AND FUNCTION 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17 Y0 to Y15 Outputs (Active Low) 18, 19 G1,G2 Enable Inputs (Active Low) 23, 22, 21, 20 A to D Address Inputs 12 GND Ground (0V) 24 VCC Positive Supply Voltage INPUTS SELECTED OUTPUT (L) G1 G2 DCBA LLLLLL Y0 LLLLL H Y1 LLLL H L Y2 LLLL H H Y3 LLL H L L Y4 LLL H L H Y5 LLL H H L Y6 LLL H H H Y7 LL H LLL Y8 LL H L L H Y9 L L HLHL Y10 LL H L H H Y11 LL H H LL Y12 LL H H L H Y13 L L HHH L Y14 L L HHHH Y15 X H XXXX NONE H XXXXX NONE |
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