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1 TC74AC257F CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC 296K Toshiba 5180644
2 TC74AC257F CMOS Digital Integrated Circuit Silicon Monolithic 364K Toshiba 2143806
3 TC74AC257FN CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC 296K Toshiba 5180643
4 TC74AC257FN CMOS Digital Integrated Circuit Silicon Monolithic 364K Toshiba 2143805