CY14B101I-SFXI

CY14B101I-SFXI is a nvSRAM with real time clock. The cypress CY14B101I combines a 1-Mbit nvSRAM[2] with a full-featured RTC in a monolithic integrated circuit with serial I²C interface. The memory is organized as 128K words of 8 bits each. The embedded nonvolatile elements incorporate the quantumtrap technology, creating the world’s most reliable nonvolatile memory. The SRAM provides infinite read and write cycles, while the quantumtrap cells provide highly reliable nonvolatile storage of data. Data transfers from SRAM to the nonvolatile elements (STORE operation) take place automatically at power-down. On power-up, data is restored to the SRAM from the nonvolatile memory (RECALL operation). The STORE and RECALL operations can also be initiated by the user through I²C commands.

• 14 - nvSRAM, 3.0V voltage, 1Mb density, 16-pin SOIC package
• Automatic STORE on power-down with a small capacitor, high reliability
• Infinite read, write, and RECALL cycles, 1 million STORE cycles to quantumtrap
• Data retention 20 years at 85°C, real time clock (RTC), full-featured RTC
• Watchdog timer, clock alarm with programmable interrupts
• Backup power fail indication, square wave output with programmable frequency
• Capacitor or battery backup for RTC, backup current of 0.45µA (typical)
• Industry standard 100KHz and 400KHz speed, fast mode plus 1MHz speed
• I²C access to special functions, nonvolatile STORE/RECALL, 8byte serial number
• Industrial temperature range from -40 to 85°C