A system for operating an associative memory device with multiple power voltage levels

摘要

A system for causing an associative memory (CAM) to operate at first and second power voltage levels includes a first input voltage for providing a first bias to an associative memory, a second input voltage for providing a second bias to an associative memory, The input voltage and the first input voltage are separated from the associative memory device and the second power voltage level is connected to the associative memory device. To connect the second input voltage to the associative memory device, the first input voltage and the second input voltage For example. In a particular embodiment, the system includes a first power-on reset connected to the associative memory device to initialize the associative memory device when the first power voltage level is initially connected to the associative memory device, And a second power-on reset connected to the associative memory device to initialize the associative memory device when connected to the associative memory device. The system allows the CAM to operate at a higher voltage level while programming a power voltage level of 2.6 to 3.6 volts and an electrically programmable memory to reduce power dissipation. The system provides multiple resets to CAMs that operate properly at multiple power supply levels. The system also provides a CAM that allows access to an extra address of an electrically programmable read-only memory (EPROM) and programs the EPROM with a typical programming device.