Ramtron has launched the FM3135, a 64 Kb, 3 V processor companion that combines the benefits of non-volatile F-RAM memory with an enhanced realtime clock/calendar (RTC) and integrated 32 kHz watch crystal. It is designed for use in meters, elapsed time monitors, time-of-use recording, and other data-storage applications that require time-stamping. The high endurance and fast writes of F-RAM combined with an RTC make it ideal for systems that time stamp events.
The device combines 64 Kb of F-RAM with an RTC that incorporates an alarm and a programmable frequency clock output. The alarm compares user-programmed alarm values to corresponding RTC time/date values, creating an ideal solution for applications such as high-end televisions that boast automatic on/off, channel switch and parental controls, and personal video recorder (PVR) functions. An industry-standard 2-wire bus is used to access the memory and to control the RTC. Available in a 20-pin SOIC package, the FM3135 operates at 2,7 to 3,6 V over the entire industrial temperature range of 40°C to +85°C.
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