M74HC240B1R 查看數據表（PDF） - STMicroelectronics

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M74HC240B1R

HC240: INVERTED - HC241/244 NON INVERTED OCTAL BUS BUFFER WITH 3 STATE OUTPUTS

STMicroelectronics 

SWITCHING CHARACTERISTICS TEST CIRCUIT

HC240

M54/M74HC240/241/244

HC241/HC244

7/12

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