Driver for a semiconductor memory and method thereof

A driver for semiconductor memory, comprising:

• a storage unit configured to match and store a memory cell address and bucket charge current data corresponding to the memory cell address;
• a selection controller configured to receive the memory cell address and a target charge current data, and output a bucket charge current select signal and a target charge current select signal corresponding to the bucket charge current data and the target charge current data, respectively, by referring to the storage unit;
• and
• a current supply unit configured to supply a bucket charge current and a target charge current in response to the bucket charge current select signal and the target charge current select signal, respectively.

A method of a driver for semiconductor memory, comprising:

• selecting bucket charge current data based on an inputted memory cell address and target charge current data;
• outputting a target charge current select signal and a bucket charge current select signal corresponding to the target charge current data and the bucket charge current data, respectively;
• providing a bucket charge current to a memory cell corresponding to the memory cell address so as to pre-charge the memory cell corresponding to the memory cell address in response to the bucket charge current select signal;
• and
• providing a target charge current to the memory cell in response to the target charge current select signal.

A driver for semiconductor memory, comprising:

• a storage unit configured to store a bucket charge current value;
• a selection controller configured to read the bucket charge current value stored in the storage unit based on an inputted memory cell address and a target charge current value, and output a bucket charge current select signal and a target charge current select signal corresponding to the bucket charge current value the target charge current value, respectively;
• a current mirror unit;
• and
• a current supply unit configured to supply a bucket charge current and a target charge current in response to the bucket charge current select signal and a target charge current select signal by using the current mirror unit.