Method and system of testing data retention of memory

A system for testing data retention of memory, comprising:

• a plurality of memory controllers each associated with and configured to access at least one memory sub-group;
• a test controller configured to enable said memory controllers to:
• write to said associated memory sub-groups during a plurality of first time periods that are each distinct to one of said memory controllers, pause for a predetermined time interval during a second time period that is subsequent to said first time periods, and
• read from said associated memory sub-groups during a plurality of third time periods that are each distinct to one of said memory controllers and subsequent to said second time period;
• and
• a comparison device configured to compare data read from said memory sub-groups to expected results to determine data retention capabilities of said memory sub-groups.

An system for testing data retention of memory, comprising:

• means for accessing sub-groups of memory;
• means for controlling said accessing means to:
• write data to said memory sub-groups during a plurality of distinct first time periods,
• pause for a predetermined time interval during a second time period that is subsequent to said first time periods, and
• read data from said memory sub-groups during a plurality of distinct third time periods that are subsequent to said second time period;
• and
• means for comparing said read data to expected results to determine data retention capabilities of said memory sub-groups.