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 non-volatile elements incorporate the quantumtrap technology, creating the world’s most reliable non-volatile memory. The SRAM provides infinite read and write cycles, while the quantumtrap cells provide highly reliable non-volatile storage of data. Data transfers from SRAM to the non-volatile elements (STORE operation) take place automatically at power-down. On power-up, data is restored to the SRAM from the non-volatile 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, non-volatile STORE/RECALL, 8byte serial number
• Industrial temperature range from -40 to 85°C