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M74HC4028B1R Folha de dados(PDF) 2 Page - STMicroelectronics |
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M74HC4028B1R Folha de dados(HTML) 2 Page - STMicroelectronics |
2 / 9 page M74HC4028 2/9 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION TRUTH TABLE X : Don’t Care LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays PIN No SYMBOL NAME AND FUNCTION 1, 2, 3, 4, 5, 6, 7, 9, 14, 15 Y0 to Y9 Decoder Outputs 10, 11, 12, 13 A to D Data Inputs 8 GND Ground (0V) 16 VCC Positive Supply Voltage INPUTS OUTPUTS SELECTED OUTPUT D C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 LL LL H L L LLL LL LL Y0 LL L H L H L LLL LL LL Y1 LL H L L L H LLL LL LL Y2 LL H H L L L H LL LL LL Y3 L H LLL LL L H L L L L L Y4 LH LHL L L L LH L L L L Y5 L H H L L L L LLL H L LL Y6 L H H H L L L LLL L H LL Y7 H L LLL LL LLL LL H L Y8 H L L H L L L LLL LL L H Y9 H X H X L L L LLL LL LL NONE H H X X L LL LLL LL LL NONE |
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