The "257" is the logic implementation 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The outputs ...
Jan 26, 2015 · 74HCT257N. 74HC257D. -40 °C to +125 °C. SO16 plastic small outline package ... 74HC257D 74HC257DB 74HC257N 74HCT257D 74HCT257DB 74HCT257N ...