00563cam a2200193 7i4500 0000008550 20080716090000.0 0 a20080602 11:35 080602 cau NM NM TK7872.L64 L69 1987 LS/S/TTL databook. LS/S/TTL logic databook. Santa Clara, California: National Semiconductor Corporation, 1987. 1v. (various pagings): ill.; 23cm. Logic devices NM 0000008662 Book Open Shelf HQ Library