【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
【Fairchild Semiconductor】DM74LS266MX,门（与/非与/或/非或） Qd 2-Input NOR Gate
【Fairchild Semiconductor】DM74LS266N,门（与/非与/或/非或） Qd 2-Input NOR Gate
