Datasheet Summary
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Pre-Production
FM31278/276/274/272
5V Integrated Processor panion with Memory Features
High Integration Device Replaces Multiple Parts
- Serial Nonvolatile Memory
- Real-time Clock (RTC)
- Low Voltage Reset
- Watchdog Timer
- Early Power-Fail Warning/NMI
- Two 16-bit Event Counters
- Serial Number with Write-lock for Security Ferroelectric Nonvolatile RAM
- 4Kb, 16Kb, 64Kb, and 256Kb versions
- Unlimited Read/Write Endurance
- 10 year Data Retention
- NoDelay™ Writes 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
-...
