Description
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 a3-state output. Whencontrol input Kd is high the output is either a logic1 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 toconnect this device toa 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 providea 16-input multifunction gate. When the EXPAND input is not used, it should be connected to VSS.