【Fairchild Semiconductor】DM74LS257BN,编码器、解码器、复用器和解复用器 3-STATE Data Sel/Mul
DM74LS258BN,IC MULTIPLEXER 4 X 2:1 16DIP
【Fairchild Semiconductor】DM74LS259M,闭锁 8-Bit Serial 闭锁
【Fairchild Semiconductor】DM74LS259MX,闭锁 8-Bit Serial 闭锁
【Fairchild Semiconductor】DM74LS259N,闭锁 8-Bit Serial 闭锁
【Fairchild Semiconductor】DM74LS259WM,闭锁 8-Bit Serial 闭锁
【Fairchild Semiconductor】DM74LS259WMX,闭锁 8-Bit Serial 闭锁
【Fairchild Semiconductor】DM74LS266M,门（与/非与/或/非或） Qd 2-Input NOR Gate
