The HCC4048B (extended temperature range) and HCF4048B (intermediate temperature range) are monolithic integrated circuit, available in 16-lead dual in-line plastic or ceramic package and plastic micro package. The HCC/HCF4048B is an 8-input gate having four control inputs. Three binary control inputs - Ka, Kb, and Kc - provide the implementation of eight different logic functions. These functions are OR, NOR, AND, NAND, OR/AND, OR/NAND, AND/OR and AND/NOR. A fourth control input-Kdprovides the user with a 3-state output. When control input Kd is high the output is either a logic 1 or a logic 0 depending on the inner states. When control input Kd is low, the output is an open circuit. This feature enables the user to connect this device to a common bus line. In addition to the eight input lines, an EXPAND input is provided that permits the user to increase the number of inputs to one HCC/HCF4048B. For example, two HCC/HCF4048B's can be cascaded to provide a 16-input multifunction gate. When the EXPAND input is not used, it should be connected to VSS. October 1988