US Patent 7110308 Self-latched control circuit for memory program operation

A memory programming control circuit is disclosed. The memory programming control circuit is connected to a memory cell via a data line for controlling a programming current in a programming operation of the memory cell. The memory programming control circuit includes a programming enable device connected to a positive power supply for selectively applying a pull-up current on the data line; and a self-latch module connected between the programming enable device and the memory cell for preventing the pull-up current from flowing to the memory cell through the data line, when the memory cell is programmed with a predetermined data bit.