(Hong Kong)
Product Summary
The FM31256-G is an integrated device that includes the most commonly needed functions for processor-based systems. Major feature of the FM31256-G includes nonvolatile memory available in various sizes, realtime clock, low-VDD reset, watchdog timer, nonvolatile event counter, lockable 64-bit serial number area, and general purpose comparator that can be used for an early power-fail (NMI) interrupt or other purpose. The family operates from 2.7 to 5.5V. Each FM31256-G provides nonvolatile RAM available in sizes including 4Kb, 16Kb, 64Kb, and 256Kb versions. Fast write speed and unlimited endurance allow the memory to serve as extra RAM or conventional nonvolatile storage. This memory of the FM31256-G is truly nonvolatile rather than battery backed.
Parametrics
FM31256-G absolute maximum ratings: (1)VDD Power Supply Voltage with respect to VSS: -1.0V to +7.0V; (2)VIN Voltage on any signal pin with respect to VSS: -1.0V to +7.0V and VIN ≤ VDD+1.0V; (3)VBAK Backup Supply Voltage: -1.0V to +4.5V; (4)TSTG Storage Temperature: -55℃ to + 125℃; (5)TLEAD Lead Temperature (Soldering, 10 seconds): 260℃.
Features
FM31256-G features: (1)High Integration Device Replaces Multiple Parts; (2)Ferroelectric Nonvolatile RAM; (3)Real-time Clock/Calendar; (4)Processor Companion; (5)Fast Two-wire Serial Interface; (6)Easy to Use Configurations.
Diagrams
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 FM31256-G |
Ramtron |
F-RAM 256K w/RTC Pwr Mon WDT Bat Sw PF |
Data Sheet |
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FM31256-GTR |
Ramtron |
F-RAM 256K w/RTC Pwr Mon WDT Bat Sw PF |
Data Sheet |
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