CY14B101K

PRELIMINARY CY14B101K 1 Mbit (128K x 8) nvSRAM With Real-Time Clock 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 www.DataSheet4U.com “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) 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. The Real-Time Clock function provides an accurate clock with leap year tracking and a programmable, high accuracy oscillator. The alarm function is programmable for one time alarm or periodic seconds, minutes, hours, or days. There is also a programmable watchdog timer for process contr...