CY14B101PA-SFXIT

CY14B101PA-SFXIT is a CY14B101PA 1Mbit (128K × 8) serial (SPI) nvSRAM with real-time clock. It combines a 1Mbit nvSRAM with a full-featured RTC in a monolithic integrated circuit with serial SPI interface. 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) takes place automatically at power-down. On power-up, data is restored to the SRAM from the nonvolatile memory (RECALL operation). User can also initiate the STORE and RECALL operations through SPI instruction.

• RECALL to SRAM initiated on power-up (power up RECALL) or by SPI instruction (software RECALL)
• Automatic STORE on power-down with a small capacitor, industrial (–40 to 85°C) temperature range
• 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, capacitor or battery backup for RTC
• Backup current of 0.45µA (typical), 40MHz clock rate SPI write and read with zero cycle delay
• SPI access to special functions, nonvolatile STORE/RECALL, 8byte serial number
• Hardware protection using write protect active-low (WP) pin
• 3V voltage rating, 16-pin SOIC, 40MHz package