[Simtek]

DESCRIPTION
The Simtek STK12C68-M is a fast static RAM (40, 45 and 55ns), with a nonvolatile EEPROM element incorporated in each static memory cell. The SRAM can be read and written an unlimited number of times, while independent nonvolatile data resides in EEPROM.

FEATURES
• 40, 45 and 55ns Access Times
• 15 mA I Access Speed
• Automatic STORE to EEPROM on Power Down
• Hardware or Software initiated STORE to EEPROM
• Automatic STORE Timing
• 100,000 STORE cycles to EEPROM
• 10 year data retention in EEPROM
• Automatic RECALL on Power Up
• Software initiated RECALL from EEPROM
• Unlimited RECALL cycles from EEPROM
• Single 5V±10% Operation
• Available in multiple standard packages