STK15C68-W25I

The STK15C68 is a fast SRAM with a nonvolatile EEPROM element incorporated in each static memory cell.The STK15C68-W25I belongs to STK15C68 series.

Features of the STK15C68-W25I are:(1)nonvolatile storage without battery problem;(2)directly replaces 8K * 8 static RAM,battery backed RAM or EERPOM;(3)20ns,25ns,35ns and 45ns access times;(4)store to eeprom intitiated by AUTOStore on power down;(5)recall to sram initiated by software or power restor;(6)15mA Icc at 200ns cycle time;(7)unlimited read,write and recall cycles;(8)1,000,000 store cycles to eeprom;(9)100-year data retention over full industrial temperature range;(10)commercial and industrial temperatures ranges;(11)28 pin 600 or 300 mil PDIP and 350 mil SOIC.

The absolute maximum ratings of the STK15C68-W25I can be summarized as:(1):the parameter is voltage on input relative to Vss,the rating is -0.6 to Vcc+0.5,the unit is V;(2):the parameter is voltage on DQ0-7,the rating is -0.5 to Vcc+0.5,the unit is V;(3):the parameter is temperature under bias,the rating is -55 to 125,the unit is ;(4):the parameter is storage temperature,the rating is -65 to 150,the unit is ; (5):the parameter is power dissipation,the rating is 1,the unit is W;(6):the parameter is DC output current(1 output at a time,1s duration),the rating is 15,the unit is mA.