SN74F38N

TEXAS INSTRUMENTS  SN74F38N  与非缓冲器 / 驱动器, 4门, 2输入, 64 mA, 4.5V至5.5V, DIP-14

The is a quad 2-input positive-NAND buffers with open collector outputs contains four independent circuits. This device performs the Boolean functions Y = A • B\ or Y = A\ + B\ in positive logic. The open-collector outputs require pull-up resistors to perform correctly. This device may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher VOH levels.