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FM3130 Datasheet(PDF) 1 Page - Ramtron International Corporation |
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FM3130 Datasheet(HTML) 1 Page - Ramtron International Corporation |
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1 / 22 page  Preliminary This is a product that has fixed target specifications but are subject Ramtron International Corporation to change pending characterization results. 1850 Ramtron Drive, Colorado Springs, CO 80921 (800) 545-FRAM, (719) 481-7000 www.ramtron.com Rev. 1.0 Sept. 2006 Page 1 of 22 FM3130 Integrated RTC/Alarm and 64Kb FRAM Features High Integration Device Replaces Multiple Parts • Serial Nonvolatile Memory • Real-time Clock (RTC) with Alarm • Clock Output (Programmable frequency) 64Kb Ferroelectric Nonvolatile RAM • Internally Organized as 8Kx8 • Unlimited Read/Write Endurance • 10 year Data Retention • NoDelay™ Writes Fast Two-wire Serial Interface • Up to 1 MHz Maximum Bus Frequency • Supports Legacy Timing for 100 kHz & 400 kHz • RTC & FRAM Controlled via 2-wire Interface Real-time Clock/Calendar • Backup Current under 1 µA • Seconds through Centuries in BCD format • Tracks Leap Years through 2099 • Uses Standard 32.768 kHz Crystal (12.5pF) • Software Calibration • Supports Battery or Capacitor Backup Easy to Use Configurations • Operates from 2.7 to 3.6V • 8-pin “green” SOIC (-G) and TDFN (-DG) • Low Operating Current • Industrial Temperature -40 °C to +85°C Description The FM3130 integrates a real-time clock (RTC) and FRAM nonvolatile memory. The device operates from 2.7 to 3.6V. The FM3130 provides nonvolatile FRAM which features fast write speed and unlimited endurance. This allows the memory to serve as extra RAM for the system microcontroller or conventional nonvolatile storage. This memory is truly nonvolatile rather than battery backed. The real-time clock (RTC) provides time and date information in BCD format. It can be permanently powered from external backup voltage source, either a battery or a capacitor. The timekeeper uses a common external 32.768 kHz crystal and provides a calibration mode that allows software adjustment of timekeeping accuracy. Pin Configuration Pin Name Function X1, X2 Crystal Connections ACS Alarm/Calibration/SqWave SDA Serial Data SCL Serial Clock VBAK Battery-Backup Supply VDD Supply Voltage VSS Ground Ordering Information FM3130-G “Green” 8-pin SOIC FM3130-DG “Green” 8-pin TDFN VSS X1 VBAK X2 1 2 3 4 5 6 7 8 VDD SCL SDA ACS X1 X2 VBAK VSS VDD ACS SCL SDA Top View 1 2 3 4 8 7 6 5 |
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Similar Description - FM3130 |
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