Ramtron FM3130
The FM3130 integrates a real-time clock (RTC) and F-RAM nonvolatile memory. The device operates from 2.7 to 3.6V. The FM3130 provides nonvolatile F-RAM which features fast write speed and unlimited endurance.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
● 45 year Data Retention
● NoDelay™ Writes Real-time Clock/Calendar
● Backup Current under 1 A
● 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 -40C to +85C
● Underwriters Laboratory (UL) Recognized Fast Two-wire Serial Interface
● Up to 1 MHz Maximum Bus Frequency
● Supports Legacy Timing for 100 kHz & 400 kHz
● RTC & F-RAM Controlled via 2-wire Interface
DESCRIPTION
The device operates from 2.7 to 3.6V. This allows the memory to serve as extra RAM for the system microcontroller or conventional nonvolatile storage.