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 is 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 at 55°C
■ 10 mA typical ICC at 200 ns cycle time
■ Single 3V operation +20%, –10%
■ Commercial and industrial temperature
■ SSOP package (ROHS compliant)