Functional Description
The Cypress CY14B101K combines a 1 Mbit nonvolatile static RAM with a full featured real-time clock in a monolithic integrated circuit. The embedded nonvolatile elements incorporate QuantumTrap technology producing the world’s most reliable nonvolatile memory. The SRAM can be read and written an infinite number of times, while independent, nonvolatile data resides in the nonvolatile elements.

FEATUREs
• Data integrity of Cypress nvSRAM combined with full featured Real-Time Clock (RTC)
• Watchdog timer
• Clock alarm with programmable interrupts
• Capacitor or battery backup for RTC
• 25 ns, 35 ns, and 45 ns access times
• “Hands-off” automatic STORE on power down with only a small capacitor
• STORE to QuantumTrap™ initiated by software, device pin, or on power down
• RECALL to SRAM initiated by software or on power up
• Infinite READ, WRITE, and RECALL cycles
• High reliability
    — Endurance to 200,000 cycles
    — Data retention: 20 years @55°C
• 10 mA typical ICC at 200 ns cycle time
• Single 3V operation +20%, –10%
• Commercial and industrial temperature
• SSOP package (ROHS compliant)