Abstract: A low-voltage programmable connector includes two separate paths. Each path includes a buffer and a pair of transmission gates whose control terminals receive the voltages supplied by a memory element associated with that path. If the voltages supplied by the memory elements respectively close the transmission gates in the first path and open those in the second path, signal is transferred from the first terminal to the second terminal of the connector. If the voltages supplied by the memory elements respectively open the transmission gates in the first path and close those in the second path, signal is transferred from the second terminal to the first terminal of the connector. If the voltages supplied by the memory elements open the transmission gates in both the first and second paths, signal transfer between the first and second terminals of the connector is inhibited.

Abstract: A low-voltage programmable connector includes two separate paths. Each path includes a buffer and a pair of transmission gates whose control terminals receive the voltages supplied by a memory element associated with that path. If the voltages supplied by the memory elements respectively close the transmission gates in the first path and open those in the second path, signal is transferred from the first terminal to the second terminal of the connector. If the voltages supplied by the memory elements respectively open the transmission gates in the first path and close those in the second path, signal is transferred from the second terminal to the first terminal of the connector. If the voltages supplied by the memory elements open the transmission gates in both the first and second paths, signal transfer between the first and second terminals of the connector is inhibited.

Abstract: An E.sup.2 PROM is disclosed which provides automatic programming verification. Before data is written into the cells, the cells are automatically erased. The contents of the cells are checked to verify that erasing has been completed. If it has not, erasing is continued until the cells are erased. When data is written into the cells, the writing of the data into the cells continues until programming is verified. The verification is conducted at potentials other than the normal reference potential to assure that the cells are well programmed with either binary zeroes or binary ones.