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74HC155 数据表(PDF) 2 Page - STMicroelectronics |
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74HC155 数据表(HTML) 2 Page - STMicroelectronics |
2 / 11 page INPUT AND OUTPUT EQUIVALENT CIRCUIT IEC LOGIC SYMBOL PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 15 1C, 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 TRUTH TABLE INPUTS OUTPUTS B A 2G 2C 2Y0 2Y1 2Y2 2Y3 X X HX H HHH L L L L L HHH LH L L H L H H HLL L H H L H HHL LHH H L X X X H H HHH TRUTH TABLE INPUTS OUTPUTS B A 1G 1C 1Y0 1Y1 1Y2 1Y3 XXH X H H H H LL L H L H H H L HLH H L H H HL LH H H L H HH L HHH H L XXX L H H H H M54/M74HC155 2/11 |
类似零件编号 - 74HC155 |
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类似说明 - 74HC155 |
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