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M74HC155B1R Datasheet(PDF) 2 Page - STMicroelectronics |
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M74HC155B1R Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 9 page M74HC155 2/9 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION TRUTH TABLE TRUTH TABLE PIN No SYMBOL NAME AND FUNCTION 1, 15 1C to 2C Data Inputs 2, 14 1G, 2G Strobe Inputs 3, 13 B, A Common Data Inputs 7, 6, 5, 4 1Y0 to 1Y3 Outputs 9, 10, 11, 12 2Y0 to 2Y3 Outputs 8 GND Ground (0V) 16 VCC Positive Supply Voltage INPUTS OUTPUTS BA 1G 1C 1Y0 1Y1 1Y2 1Y3 X XHXH H H H LLL H L H H H LHLH HL H H H L L HHH L H HH L HHH H L XXX L H H H H INPUTS OUTPUTS BA 2G 2C 2Y0 2Y1 2Y2 2Y3 X XHXH H H H LLLLL H H H LHL L HL H H H LLL H H L H HH L L HH H L X X X HHH HH |
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