Ramtron's FM3130 is a 64 kilobit, 3 volt FRAM-Enhanced processor companion product that combines the benefits of nonvolatile ferro-electric RAM with an integrated realtime clock/calendar (RTC) in one tiny package. The FM3130 has been streamlined to reduce system cost and board space in consumer and computing applications, supporting commonly-needed system functions in products such as printers and high-definition televisions, without the need for discrete components. It also incorporates an alarm and a programmable frequency clock output, and uses a common 12 pF watch crystal. The alarm compares user-programmed alarm values to corresponding RTC time/date values. This can be used for automatic on/off, channel switch and parental control and personal video recorder functions in high-end televisions. A 2-wire bus is used to access the memory and to control the RTC. It is available in an 8-pin TDFN package that is footprint-compatible with TSSOP8s, or a standard 8-pin SOIC package. The device operates from 2,7 to 3,6 V over -40 to 85°C.
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